Intel Xe

Not to be confused with Intel Parallel Studio XE or Intel Xeon.

Intel Xe (stylized as X^e and pronounced as two separate letters,^[1] abbreviation for "exascale for everyone"^[2]), earlier known unofficially as Gen12,^[3][4] is a GPU architecture developed by Intel.^[5]

Intel Xe

Release date	September 2, 2020; 3 years ago (2020-09-02)
Manufactured by	Intel TSMC
Designed by	Intel
Marketed by	Intel
Fabrication process	TSMC N6
Cards
Entry-level	Iris Xe Graphics
High-end	Intel Arc
History
Predecessor	Gen 11
Successor	Intel Xe 2

Intel Xe includes a new instruction set architecture. The Xe GPU family consists of a series of microarchitectures, ranging from integrated/low power (Xe-LP),^[6] to enthusiast/high performance gaming (Xe-HPG), datacenter/high performance (Xe-HP) and high performance computing (Xe-HPC).^[7][8]

History

Intel's first attempt at a dedicated graphics card was the Intel740,^[9] released in February 1998. The Intel740 was considered unsuccessful due to its performance which was lower than market expectations, causing Intel to cease development on future discrete graphics products. However, its technology lived on in the Intel Extreme Graphics lineup.^[10] Intel made another attempt with the Larrabee architecture before canceling it in 2009;^[11] this time, the technology developed was used in the Xeon Phi, which was discontinued in 2020.^[12]

In April 2018, it was reported that Intel was assembling a team to develop discrete graphics processing units, targeting both datacenters, as well as the PC gaming market, and therefore competitive with products from both Nvidia and AMD.^[13] Rumors supporting the claim included that the company had vacancies for over 100 graphics-related jobs, and had taken on former Radeon Technologies Group (AMD) leader Raja Koduri in late 2017 – the new product was reported to be codenamed "Arctic Sound".^[13] The project was reported to have initially been targeting video streaming chips for data centers, but had its scope expanded to include desktop GPUs.^[13]

In June 2018, Intel confirmed it planned to launch a discrete GPU in 2020.^[14]

The first functional discrete "Xe" GPU, codenamed "DG1", was reported as having begun testing in October 2019.^[15]

According to a report by Hexus in late 2019, a discrete GPU would launch in mid 2020; combined GPU/CPU (GPGPU) products were also expected, for data center and autonomous driving applications. The product was expected to initially be built on a 10 nm node (with 7 nm products in 2021) and use Intel's Foveros die stacking packaging technology (see 3D die stacking).^[16] During 2020, the first GPUs were released under the name Intel Iris Xe Max, being integrated in the 11th generation Intel Core processors (codenamed "Tiger Lake" and "Rocket Lake"),^[4] followed in 2021 by the Iris Xe DG1 card, exclusive to Intel OEM manufacturers.^[17] Finally and after some delays, the retail launch of these first discrete graphics cards from the company in over 20 years, known as the Intel Arc series, would occur during 2022.^[18]

Architecture

Intel Xe expands upon the microarchitectural overhaul introduced in Gen 11 with a full refactor of the instruction set architecture.^[19][4] While Xe is a family of architectures, each variant has significant differences from each other as these are made with their targets in mind. The Xe GPU family consists of Xe-LP, Xe-HP, Xe-HPC, and Xe-HPG sub-architectures.

Unlike previous Intel graphics processing units which used the Execution Unit (EU) as a compute unit, Xe-HPG and Xe-HPC use the Xe-core.^[20] This is similar to an Xe-LP subslice.^[20] An Xe-core contains vector and matrix arithmetic logic units, which are referred to as vector and matrix engines. Other components include L1 cache and other hardware.^[20][21]

Xe-LP (Low Power)

Xe-LP is the low power variant of the Xe architecture with removed support for FP64.^[22] Xe-LP is present as integrated graphics for 11th-generation Intel Core and the Iris Xe MAX mobile dedicated GPU (codenamed DG1),^[6] as well as in the H3C XG310 Intel Server GPU (codenamed SG1).^[4] Compared to its predecessor, Xe-LP includes new features such as Sampler Feedback,^[23] Dual Queue Support,^[24] DirectX12 View Instancing Tier2,^[25] and AV1 8-bit and 10-bit fixed-function hardware decoding.^[26]

Xe-HP (High Performance)

Xe-HP is the datacenter/high performance variant of Xe, optimized for FP64 performance and multi-tile scalability.^[5]

Xe-HPC (High Performance Compute)

Xe-HPC is the high performance computing variant of the Xe architecture.^[7][8] An Xe-HPC Xe-core contains 8 vector and 8 matrix engines, alongside a large 512  KB L1 cache.^[27] It powers Ponte Vecchio.

Xe-HPG (High Performance Graphics)

Xe-HPG is the enthusiast or high performance graphics variant of the Xe architecture. The microarchitecture is based on Xe-LP with improvements from Xe-HP and Xe-HPC.^[28] The microarchitecture is focused on graphics performance and supports hardware-accelerated ray tracing,^[7][29] DisplayPort 2.0,^[30] XeSS or supersampling based on neural networks (similar to Nvidia DLSS), and DirectX 12 Ultimate. ^[31] Intel confirmed ASTC support has been removed from hardware starting with Alchemist and future Intel Arc GPU microarchitectures will also not support it.^[32] An Xe-HPG Xe-core contains 16 vector engines and 16 matrix engines.^[21] An Xe-HPG render slice will consist of four Xe-cores, ray tracing hardware, and other components.^[21]

Xe-LPG (Low Power Graphics)

The Xe-LPG architecture is a low power variant of Xe-HPG designed for the tile-based iGPUs (tGPUs) of Intel's Meteor Lake and upcoming Arrow Lake processors. It is based on the same Arc Alchemist graphics (Gen 12.7) used by Intel's Arc A-series graphics cards but is optimized for operation with lower wattage and higher performance per watt.

Intel Xe 2

Intel Xe 2

Release date	2024 or later
Codename	Battlemage
History
Predecessor	Intel Xe
Successor	Intel Xe 3

A successor to Xe was revealed during Intel Architecture Day 2021, under the name of Xe 2, codenamed Battlemage. It is currently under development.^[21] In an exclusive interview with HardwareLuxx Tom Peterson confirmed that X^e2 will be segmented into "Xe2-LPG" (Low Power Graphics) for integrated GPUs and "Xe2-HPG" (High Performance Graphics) for discrete GPUs.^[33]

Intel Xe 3

Intel Xe 3

Codename	Celestial
History
Predecessor	Intel Xe 2
Successor	Intel Xe 4

Intel Xe 3 is the upcoming successor to the Intel Xe 2 microarchitecture codenamed Celestial.^[21]

Intel Xe 4

Intel Xe 4

Codename	Druid
History
Predecessor	Intel Xe 3

Intel Xe 4 is the upcoming successor to the Intel Xe 3 microarchitecture codenamed Druid.^[34]

Products using Xe

Integrated graphics

See also: Intel Graphics Technology

Newer Intel processors use the Xe-LP microarchitecture. These include 11th generation Intel Core processors (codenamed "Tiger Lake" and "Rocket Lake"),^[4] 12th generation Intel Core processors (codenamed "Alder Lake"), and 13th generation Intel Core processors (codenamed "Raptor Lake").

Discrete graphics

Intel Iris Xe Max (DG1)

Model	Launch	Process	Execution units	Shading units	Clock speeds		Memory				Processing power (GFLOPS)				Notes
					Boost clock (MHz)	Memory (MT/s)	Size (GB)	Bandwidth (GB/s)	Bus type	Bus width (bit)	Half	Single	Double	INT8
Iris Xe MAX	November 1, 2020	Intel 10SF	96	768	1650	4266	4	68	LPDDR4X	128	5069	2534	—	10138

In August 2020, Intel was reported to be shipping Xe DG1 GPUs for a possible late 2020 release, while also commenting on a DG2 GPU aimed at the enthusiast market (later found out to be the first generation of Intel Arc nicknamed "Alchemist"). The DG1 is also sold as the Iris Xe MAX and as Iris Xe Graphics (stylized as iRIS X^e) in laptops, while cards for developers are sold as the DG1 SDV.^[35][36]

The Xe MAX is an entry-level GPU that was first released on November 1, 2020, in China and is similar in most aspects to the integrated GPU found in Tiger Lake processors, the only differences being a higher clock speed, slightly higher performance and dedicated memory and a dedicated TDP requirement. It competes with Nvidia's laptop-level GeForce MX series GPUs. It is aimed at slim and highly portable productivity laptops and has 4 GB of dedicated LPDDR4X-4266 memory with a 128-bit-wide memory bus, has 96 EUs, 48 texture units, 24 ROPs, a peak clock speed of 1650 MHz and a performance of 2.46 FP32 teraFLOPs with a 25w TDP. By comparison, the integrated GPU in Tiger Lake processors has a performance of 2.1 FP32 teraFLOPs.^[37][38] The Xe MAX does not replace the system's integrated GPU; instead it was designed to work alongside it, so tasks are split between the integrated and discrete GPUs.^[39] It was initially available on only 3 laptops: The Asus VivoBook Flip 14 TP470, the Acer Swift 3X, and the Dell Inspiron 15 7000. Intel Xe MAX GPUs can only be found on systems with Tiger Lake processors.

Intel officially announced Intel Iris Xe Graphics desktop cards for OEMs and system integrators on January 26, 2021. It is aimed at mainstream desktop and business PCs as an improvement over other graphics options in AV1 video decoding, HDR (high dynamic range) video support and deep learning inference, and is not as powerful as its laptop counterpart, with only 80 enabled EUs. The first cards are made by Asus, have DisplayPort 1.4, HDMI 2.0, Dual Link DL-DVI-D outputs and are passively cooled.^{[40][41][42][43]}

Intel Arc

Intel Arc is a high-performance discrete graphics line optimized for gaming. This will compete directly with the Radeon and GeForce lines of graphics processing units. The first generation (codenamed "Alchemist"), was developed under the "DG2" name and is based on the Xe-HPG architecture. Future generations are codenamed Battlemage ("DG3", based on Xe²), Celestial ("DG4", based on Xe³), and Druid ("DG5").

Desktop

Branding and Model[44]		Launch	MSRP (USD)	Code name	Process	Transistors (billion)	Die size (mm2)	Core config [lower-alpha 1]	L2 cache	Clock rate (MHz)[lower-alpha 2]	Fillrate		Memory					Processing power (TFLOPS)			TDP	Bus interface
											Pixel (GP/s)	Texture (GT/s)	Type	Size (GB)	Bandwidth (GB/s)	Bus width	Clock (MT/s)	Half precision (base)	Single precision (base)	Double precision (base)
Arc 3	A310	Sep 28, 2022	$110	ACM-G11 (DG2-128)	TSMC N6	7.2	157	6 Xe cores 768:32:16:6 (192:96:2)	4 MB	2000 2000	32	64	GDDR6	4 GB	124	64-bit	15500	6.144	3.072	0.768	75 W	PCIe 4.0 x8
	A380	Jun 14, 2022	$139					8 Xe cores 1024:64:32:8 (256:128:2)		2000 2050	64 65.6	128 131.2		6 GB	186	96-bit		8.192 8.3968	4.096 4.1984	1.024 1.0496
Arc 5	A580	Oct 10, 2023	$179	ACM-G10 (DG2-512)		21.7	406	24 Xe cores 3072:192:96:24 (768:384:6)	8 MB	1700 1700	163.2	326.4		8 GB	512	256-bit	16000	20.890	10.445	2.611	175 W	PCIe 4.0 x16
Arc 7	A750	Oct 14, 2022	$289					28 Xe cores 3584:192:112:28 (896:448:7)	16 MB	2050 2400	229.6 268.8	393.6 460.8						29.3888 34.4064	14.6944 17.2032	3.6736 4.3008	225 W
	A770 8GB		$329					32 Xe cores 4096:256:128:32 (1024:512:8)	16 MB	2100 2400	268.8 307.2	537.6 614.4						34.4064 39.3216	17.2032 19.6608	4.3008 4.9152
	A770 16GB		$349											16 GB	560		17500

• v
• t
• e

1. Shading cores (ALU): texture mapping units (TMU): render output units (ROP): ray tracing units
      (tensor cores (XMX): execution units: render slices)
2. Boost values (if available) are stated below the base value in italic.

Mobile

Branding and Model[45]		Launch	Code name	Process	Transistors (billion)	Die size (mm2)	Core config[lower-alpha 1][lower-alpha 2]	L2 cache	Core clock (MHz)[lower-alpha 3]	Fillrate[lower-alpha 4]		Memory					Processing power (TFLOPS)			TDP	Bus interface
										Pixel (GP/s)	Texture (GT/s)	Type	Size	Bandwidth (GB/s)	Bus width	Clock (MT/s)	Half precision	Single precision	Double precision
Arc 3	A350M	Mar 30, 2022	ACM-G11 (DG2-128)	TSMC N6	7.2	157	6 Xe cores 768:48:24:6 (96:96:2)	4 MB	1150 2200	27.6 52.8	55.2 105.6	GDDR6	4 GB	112	64-bit	14000	3.5328 6.7584	1.7664 3.3792	0.4416 0.8448	25–35 W	PCIe 4.0 ×8
	A370M						8 Xe cores 1024:64:32:8 (128:128:2)		1550 2050	49.6 65.6	99.2 131.2						6.3488 8.3968	3.1744 4.1984	0.7936 1.0496	35–50 W
Arc 5	A530M	Q3 2023	ACM-G12 (DG2-256)				12 Xe cores 1536:96:48:12 (192:192:3)	8 MB	1300				4 GB 8 GB	224	128-bit					65–95 W
	A550M	Q2 2022	ACM-G10 (DG2-512)		21.7	406	16 Xe cores 2048:128:64:16 (256:256:4)		900 1700	57.6 108.8	115.2 217.6		8 GB				7.3728 13.9264	3.6864 6.9632	0.9216 1.7408	60–80 W
	A570M	Q3 2023	ACM-G12 (DG2-256)						1300											75–95 W
Arc 7	A730M	Q2 2022	ACM-G10 (DG2-512)		21.7	406	24 Xe cores 3072:192:96:24 (384:384:6)	12 MB	1100 2050	105.6 196.8	211.2 393.6		12 GB	336	192-bit		13.5168 25.1904	6.7584 12.5952	1.6896 3.1488	80–120 W	PCIe 4.0 ×16
	A770M						32 Xe cores 4096:256:128:32 (512:512:8)	16 MB	1650 2050	211.2 262.4	422.4 524.8		16 GB	512	256-bit	16000	27.0336 33.5872	13.5168 16.7936	3.3792 4.1984	120–150 W

• v
• t
• e

1. Shading cores (ALU): texture mapping units (TMU): render output units (ROP): ray tracing units
      (tensor cores (XMX): execution units: render slices)
2. Texture fillrate is calculated as the number of texture mapping units (TMUs) multiplied by the base (or boost) core clock speed.
3. Boost values (if available) are stated below the base value in italic.
4. Pixel fillrate is calculated as the lowest of three numbers: number of ROPs multiplied by the base core clock speed, number of rasterizers multiplied by the number of fragments they can generate per rasterizer multiplied by the base core clock speed, and the number of streaming multiprocessors multiplied by the number of fragments per clock that they can output multiplied by the base clock rate.

Workstation

Branding and Model[46]		Launch	Code name	Process	Transistors (billion)	Die size (mm2)	Core config[lower-alpha 1]	L2 cache	Core clock (MHz)[lower-alpha 2]	Fillrate[lower-alpha 3][lower-alpha 4]		Memory					Processing power (TFLOPS)			TDP	Bus interface
										Pixel (GP/s)	Texture (GT/s)	Type	Size	Bandwidth (GB/s)	Bus width	Clock (MT/s)	Half precision	Single precision	Double precision
Arc Pro	A30M (Mobile)	Aug 8, 2022	ACM-G11 (DG2-128)	TSMC N6	7.2	157	8 Xe cores 1024:64:32:8 (128:128:2)	4 MB	1550			GDDR6	4 GB	112	64-bit	14000		4.20[46]		50 W	PCIe 4.0 x8
	A40												6 GB	192	96-bit	16000		5.02[46]
	A50								2050											75 W
	A60M (Mobile)	June 6, 2023	ACM-G12 (DG2-256)				16 Xe cores 2048:128:64:16 (256:256:4)		1300				8 GB	256	128-bit			9.42[46]		95 W	PCIe 4.0 x16
	A60												12 GB	384	192-bit			10.04[46]		130 W

• v
• t
• e

1. Shading cores (ALU): texture mapping units (TMU): render output units (ROP): ray tracing units
      (tensor cores (XMX): execution Units: render slices)
2. Boost values (if available) are stated below the base value in italic.
3. Pixel fillrate is calculated as the lowest of three numbers: number of ROPs multiplied by the base core clock speed, number of rasterizers multiplied by the number of fragments they can generate per rasterizer multiplied by the base core clock speed, and the number of streaming multiprocessors multiplied by the number of fragments per clock that they can output multiplied by the base clock rate.
4. Texture fillrate is calculated as the number of texture mapping units (TMUs) multiplied by the base (or boost) core clock speed.

Datacenter

Intel H3C XG310

On November 11, 2020 Intel launched the H3C XG310 data center GPU consisting of four DG1 GPUs with 32 GB of LPDDR4X memory on a single-slot PCIe card.^[47][48] Each GPU is connected to 8 GB of memory over a 128-bit bus and the card uses a PCIe 3.0 x16 connection to the rest of the system. The GPUs use the Xe-LP (Gen 12.1) architecture.

Ponte Vecchio

Intel officially announced their Xe general HPC/AI GPU codenamed Ponte Vecchio on November 17, 2019. It was revealed to use the Xe-HPC variant of the architecture^[49] and Intel's 'Embedded Multi-Die Interconnect Bridge' (EMIB) and Foveros die stacking packaging on a Intel 4 node (previously referred to as 7 nm). Intel later confirmed at Architecture Day 2021 that Ponte Vecchio would use Compute Tiles manufactured on TSMC N5, Base Tiles and Rambo Cache Tiles manufactured using Intel 7 (previously referred to as 10 nm Enhanced SuperFin) and Xe Link Tiles manufactured on the TSMC N7 process. The new GPU is expected to be used in Argonne National Laboratory's new exascale supercomputer, Aurora, with compute nodes comprising two next generation Intel Xeon (codenamed "Sapphire Rapids") CPUs, and six Ponte Vecchio GPUs.^[50][51]

Model[52][53]	Launch	Code name(s)	Process	Transistors (billion)	Die size (mm2)	Core config[lower-alpha 1]	Cache		Core clock (MHz)[lower-alpha 2]	Fillrate[lower-alpha 3][lower-alpha 4]		Memory					Processing power (TFLOPS)			TDP	Bus interface
							L1	L2		Pixel (GP/s)	Texture (GT/s)	Type	Size	Bandwidth (GB/s)	Bus width	Clock (MT/s)	Bfloat16	Single precision	Double precision
Data Center GPU Max 1100	Jan 10, 2023	Xe-HPC (Ponte Vecchio)	Multiple[54]	100	1280	7168:448:0:56:448:448	28 MB	204 MB	1000 1550	0	448.0 694.4	HBM2E	48 GB	1228.8	3072-bit	3200	352	14.336 22.221		300 W	PCIe 5.0 x16
Data Center GPU Max 1350	abandoned					14336:896:0:112:896:896	56 MB	408 MB	750 1550		672.0 1388.8		96 GB	2457.6	6144-bit		704	21.504 44.442		450 W
Data Center GPU Max 1550	Jan 10, 2023					16384:1024:0:128:1024:1024	64 MB	408 MB	900 1600		921.6 1638.4		128 GB	3276.8	8192-bit		832	29.491 54.423		600 W

• v
• t
• e

1. shading cores (ALU):texture mapping units (TMU):render output units (ROP):ray tracing units:tensor cores (XMX):execution Units
2. Boost values (if available) are stated below the base value in italic.
3. Pixel fillrate is calculated as the lowest of three numbers: number of ROPs multiplied by the base core clock speed, number of rasterizers multiplied by the number of fragments they can generate per rasterizer multiplied by the base core clock speed, and the number of streaming multiprocessors multiplied by the number of fragments per clock that they can output multiplied by the base clock rate.
4. Texture fillrate is calculated as the number of texture mapping units (TMUs) multiplied by the base (or boost) core clock speed.

Rialto Bridge

Intel officially announced the successor to Ponte Vecchio, GPU codenamed Rialto Bridge on May 31, 2022.^[55] On March 3, 2023 Intel announced the discontinuation of Rialto Bridge in favor of their tile-based flexible and scalable Falcon Shores XPU (CPU + GPU) set to arrive in 2025.^[56]

Arctic Sound

Under the codename Arctic Sound Intel developed data center GPUs for visual cloud and AI inference based on the Xe-HP architecture (Gen 12.5).^[57] The GPUs were supposed to be fabbed on Intel's 10nm node and have a die size of around 190 mm² with 8 billion transistors.^[58] Up to four GPUs tiles could be combined into a single package together with HBM2e memory. In October 2021 Raja Koduri announced that Xe-HP won't be commercialized into a final product.^[57] Instead the Arctic Sound cards will be based on the Xe-HPG architecture (Gen 12.7), the same as the Alchemist consumer graphics cards.^[59] They were launched on August 24, 2022 as the Intel Data Center GPU Flex series. On March 3, 2023 Intel announced that it would discontinue the development of Lancaster Sound which was supposed to succeed Arctic Sound in 2023 with incremental improvements. Instead Intel will accelerate the development of Melville Sound which will be a significant architectural leap in terms of performance and features.^[56]

See also

• Larrabee (microarchitecture)
• Intel Graphics Technology
• Arc Alchemist series

References

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