Intel Xe
Intel Xe, earlier known unofficially as Gen12, is a GPU architecture developed by Intel.
Intel Xe includes a new instruction set architecture. The Xe GPU family consists of a series of microarchitectures, ranging from integrated/low power, to enthusiast/high performance gaming, datacenter/high performance and high performance computing.
History
Intel's first attempt at a dedicated graphics card was the Intel740, 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. Intel made another attempt with the Larrabee architecture before canceling it in 2009; this time, the technology developed was used in the Xeon Phi, which was discontinued in 2020.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. Rumors supporting the claim included that the company had vacancies for over 100 graphics-related jobs, and had taken on former Radeon Technologies Group leader Raja Koduri in late 2017 – the new product was reported to be codenamed "Arctic Sound". The project was reported to have initially been targeting video streaming chips for data centers, but had its scope expanded to include desktop GPUs.
In June 2018, Intel confirmed it planned to launch a discrete GPU in 2020.
The first functional discrete "Xe" GPU, codenamed "DG1", was reported as having begun testing in October 2019.
According to a report by Hexus in late 2019, a discrete GPU would launch in mid 2020; combined GPU/CPU products were also expected, for data center and autonomous driving applications. The product was expected to initially be built on a 10 nm node and use Intel's Foveros die stacking packaging technology. During 2020, the first GPUs were released under the name Intel Iris Xe Max, being integrated in the 11th generation Intel Core processors, followed in 2021 by the Iris Xe DG1 card, exclusive to Intel OEM manufacturers. 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.
Architecture
Intel Xe expands upon the microarchitectural overhaul introduced in Gen 11 with a full refactor of the instruction set architecture. 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 as a compute unit, Xe-HPG and Xe-HPC use the Xe-core. This is similar to an Xe-LP subslice. 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.
Xe-LP (Low Power)
Xe-LP is the low power variant of the Xe architecture with removed support for FP64. Xe-LP is present as integrated graphics for 11th-generation Intel Core and the Iris Xe MAX mobile dedicated GPU, as well as in the H3C XG310 Intel Server GPU. Compared to its predecessor, Xe-LP includes new features such as Sampler Feedback, Dual Queue Support, DirectX12 View Instancing Tier2, and AV1 8-bit and 10-bit fixed-function hardware decoding.Xe-HP (High Performance)
Xe-HP is the datacenter/high performance variant of Xe, optimized for FP64 performance and multi-tile scalability.Xe-HPC (High Performance Compute)
Xe-HPC is the high performance computing variant of the Xe architecture. An Xe-HPC Xe-core contains 8 vector and 8 matrix engines, alongside a large 512KB L1 cache. 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. The microarchitecture is focused on graphics performance and supports hardware-accelerated ray tracing, DisplayPort 2.0, XeSS or supersampling based on neural networks, and DirectX 12 Ultimate.Intel confirmed ASTC support has been removed from hardware starting with Alchemist and future Intel Arc GPU microarchitectures will also not support it. An Xe-HPG Xe-core contains 16 vector engines and 16 matrix engines. An Xe-HPG render slice will consist of four Xe-cores, ray tracing hardware, and other components.
Xe-LPG (Low Power Graphics)
The Xe-LPG architecture is a low power variant of Xe-HPG designed for the tile-based iGPUs of Intel's Meteor Lake and Arrow Lake processors.It is based on the same Arc Alchemist graphics 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
A successor to Xe was revealed during Intel Architecture Day 2021, under the name of Xe 2, codenamed Battlemage. In an exclusive interview with HardwareLuxx Tom Petersen confirmed that Xe2 would be segmented into "Xe2-LPG" for integrated GPUs and "Xe2-HPG" for discrete GPUs. Xe 2 was first released with Xe2-LPG in Lunar Lake on September 24, 2024. On December 3 2024, Intel announced the Arc B-Series Graphics Cards for desktop, utilizing the Xe2-HPG architecture, which was later released on December 12 2024.Intel Xe 3
Intel Xe 3 is the architecture for the iGPU in the upcoming Panther Lake products. It, among much of the Arc series, will support XeSS 3 at launch, which will include Multi-Frame Generation. Some Xe based products may support this after launch.Intel Xe 3P
Intel Xe 3P, codenamed Celestial, is the upcoming successor to the Intel Xe 2 and Xe 3 microarchitecture.Intel Xe 4
Intel Xe 4, codenamed Druid, is the upcoming successor to the Intel Xe 3 microarchitecture.Products using Xe
Integrated graphics
Newer Intel processors use the Xe-LP microarchitecture. These include 11th generation Intel Core processors, 12th generation Intel Core processors, 13th generation Intel Core processors, and 14th generation Intel Core processors. The iGPUs in the Intel Core Ultra 100 series processors use the Xe-LPG microarchitecture. The Intel Core Ultra 200S and 200H/HX series processors also use the Xe-LPG microarchitecture in their iGPUs. Meanwhile, the Intel Core Ultra 200V series processors uses the Xe2-LPG microarchitecture. The upcoming Intel Core Ultra 300 series uses the Xe3 microarchitecture.Discrete graphics
Intel Iris Xe Max (DG1)
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. The DG1 is also sold as the Iris Xe MAX and as Iris Xe Graphics in laptops, while cards for developers are sold as the DG1 SDV.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. 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. 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 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.
Intel Arc Alchemist
is a high-performance discrete graphics line optimized for gaming. This will competes with the Radeon and GeForce lines of graphics processing units. The first generation, was developed under the "DG2" name and is based on the Xe-HPG architecture. The second generation was developed under the "DG3" name and is based on the Xe2 architecture. Future generations include Celestial, and Druid.Desktop
Mobile
Workstation
Battlemage
Battlemage is the second-generation Xe architecture that debuted with its low power variant in Lunar Lake mobile processors that released in September 2024. On December 3, 2024, Intel announced two Arc B-Series desktop graphics cards based on the Xe2-HPG graphics architecture.Desktop
- ^ Pixel fillrate is calculated as the number of render output units multiplied by the base core clock speed.
- ^ Texture fillrate is calculated as the number of texture mapping units multiplied by the base core clock speed.
- ^ Xe2-HPG Cores
- ^ Boost values are stated below the base value in italics.