AMD Instinct MI355X vs Intel Arc Graphics 4 Xe Mobile Comparison

Head-to-Head Benchmarks

The database contains no recorded benchmark scores for either the AMD Instinct MI355X or the Intel Arc Graphics 4 Xe Mobile. Both parts hold a 50th percentile position among all GPUs in the database, with an average benchmark score of zero. With no head-to-head benchmark entries, no wins are recorded for either device. The absence of measured performance data means that direct numerical comparisons of frame rates, compute throughput, or application-specific results cannot be made at this time. What can be analyzed from the recorded data are the architectural specifications, which provide a basis for understanding the relative capabilities of these two very different accelerators. The MI355X is positioned as a server-grade compute module, while the Arc Graphics 4 Xe Mobile is an integrated graphics processor for portable devices. Their respective specifications indicate vastly different performance envelopes, but without benchmark measurements, any quantitative performance ranking remains undeclared in the database.

Architecture Differences

The AMD Instinct MI355X uses the CDNA 4.0 architecture, fabricated on a 3 nm process at TSMC. The chip, designated MI350 256CU, contains 185,000 million transistors on a die size of 2380 mm², yielding a transistor density of 77.7 million transistors per square millimeter. The Intel Arc Graphics 4 Xe Mobile uses the Xe3-LPG architecture, built on the Panther Lake chip, also on a 3 nm process but fabricated by Intel. The transistor count and die size for the Intel part are listed as unknown. This represents a fundamental difference in design philosophy: the AMD part is a massive, discrete accelerator module, while the Intel part is an integrated graphics processor (IGP) sharing a package with other system components.

The MI355X features 16,384 shading units, 1,024 texture mapping units, and no ROPs. The Arc Graphics 4 Xe Mobile has 512 shading units, 32 TMUs, and 16 ROPs. The AMD accelerator also includes no ray tracing cores, whereas the Intel part includes 4 ray tracing cores. Neither part lists tensor cores in the database. The MI355X operates at a base clock of 1000 MHz and a boost clock of 2400 MHz. The Intel part runs at a 300 MHz base and 2300 MHz boost. The AMD part's memory subsystem uses HBM3e with a 288 GB capacity, an 8192-bit bus width, and 8.19 TB/s of bandwidth, with a memory clock of 2000 MHz (8 Gbps effective). The Intel part uses system shared memory, with type, bus width, and bandwidth all listed as system dependent.

The MI355X supports no graphics APIs, with DirectX, OpenGL, and Vulkan all listed as N/A. The Arc Graphics 4 Xe Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This reflects the intended use cases: the MI355X is a compute-focused accelerator with no display output, while the Intel part is a general-purpose graphics processor for consumer mobile devices. The MI355X has no display outputs, while the Arc Graphics 4 Xe Mobile's display outputs are portable device dependent. The MI355X uses a PCIe 5.0 x16 bus interface, while the Intel part uses an IGP bus interface. The AMD accelerator is an OAM Module with a slot width of OAM Module and no power connectors, with a suggested PSU of 1800 W. The Intel part is an IGP with no power connectors and no suggested PSU listed.

FAQ

Q: What is the process node for each GPU?

A: Both the AMD Instinct MI355X and the Intel Arc Graphics 4 Xe Mobile are fabricated on a 3 nm process. The AMD part is built at TSMC, while the Intel part is built at Intel.

Q: How much memory does each GPU have?

A: The AMD Instinct MI355X has 288 GB of HBM3e memory with an 8192-bit bus and 8.19 TB/s bandwidth. The Intel Arc Graphics 4 Xe Mobile uses system shared memory, with capacity, type, and bandwidth all listed as system dependent.

Q: What graphics API support does each GPU offer?

A: The AMD Instinct MI355X has no graphics API support, with DirectX, OpenGL, and Vulkan all listed as N/A. The Intel Arc Graphics 4 Xe Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the thermal design power (TDP) for each GPU?

A: The AMD Instinct MI355X has a TDP of 1400 W. The Intel Arc Graphics 4 Xe Mobile has a TDP of 25 W.

Q: What is the release date for each GPU?

A: The AMD Instinct MI355X was released on June 11, 2025. The Intel Arc Graphics 4 Xe Mobile was released on January 26, 2026.

Q: What is the shading unit count for each GPU?

A: The AMD Instinct MI355X has 16,384 shading units. The Intel Arc Graphics 4 Xe Mobile has 512 shading units.

Specification Differences

The two GPUs differ across nearly every recorded specification field. The AMD Instinct MI355X uses the MI350 256CU chip, while the Intel Arc Graphics 4 Xe Mobile uses the Panther Lake chip. The architectures differ: CDNA 4.0 for AMD, Xe3-LPG for Intel. The foundries differ as well: TSMC for AMD, Intel for the Arc part. The transistor count is 185,000 million for AMD and unknown for Intel. The die size is 2380 mm² for AMD and unknown for Intel. Transistor density is 77.7 million per mm² for AMD and null for Intel.

Clock speeds differ substantially. The AMD part has a 1000 MHz base and 2400 MHz boost. The Intel part has a 300 MHz base and 2300 MHz boost. Memory clocks are 2000 MHz (8 Gbps effective) for AMD, while Intel uses system shared memory. Memory size is 288 GB of HBM3e for AMD, system shared for Intel. Bus width is 8192 bit for AMD, system shared for Intel. Bandwidth is 8.19 TB/s for AMD, system dependent for Intel.

Compute resources differ by an order of magnitude. Shading units: 16,384 for AMD versus 512 for Intel. TMUs: 1,024 for AMD versus 32 for Intel. ROPs: 0 for AMD versus 16 for Intel. Ray tracing cores: null for AMD versus 4 for Intel. Pixel rate is 0 MPixel/s for AMD versus 36.80 GPixel/s for Intel. Texture rate is 2,457.6 GTexel/s for AMD versus 73.60 GTexel/s for Intel. FP32 performance is 78.64 TFLOPS for AMD versus 2.355 TFLOPS for Intel. FP16 performance is 78.64 TFLOPS (1:1) for AMD versus 4.710 TFLOPS (2:1) for Intel.

TDP is 1400 W for AMD versus 25 W for Intel. Slot width is OAM Module for AMD versus IGP for Intel. Power connectors are none for both. Suggested PSU is 1800 W for AMD and null for Intel. Bus interface is PCIe 5.0 x16 for AMD versus IGP for Intel. Display outputs are none for AMD versus portable device dependent for Intel. API support: AMD has N/A for all three APIs, Intel has DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Dimensions are 102 mm length and 165 mm width for AMD, with no dimensions listed for Intel. Production status is null for AMD and active for Intel. Release dates differ: June 11, 2025 for AMD and January 26, 2026 for Intel. The AMD part lists its predecessor as Radeon Instinct, while the Intel part has no predecessor listed.

Where Each One Wins

The AMD Instinct MI355X dominates in raw compute specifications. Its FP32 throughput of 78.64 TFLOPS is more than 33 times higher than the Intel part's 2.355 TFLOPS. Texture rate of 2,457.6 GTexel/s compared to 73.60 GTexel/s indicates a massive advantage in fill-rate-bound workloads. The 288 GB of HBM3e memory with 8.19 TB/s bandwidth versus system shared memory gives the AMD part a decisive edge in memory-capacity-bound and bandwidth-bound applications, such as large model inference or training. The 8192-bit memory bus compared to a system-dependent interface further reinforces this advantage. The MI355X also carries a much higher TDP at 1400 W versus 25 W, which reflects its design for sustained, high-power compute workloads in server environments.

The Intel Arc Graphics 4 Xe Mobile wins in integration and graphics-specific features. It is an IGP with no external power connectors and no suggested PSU, designed to operate within the power envelope of a mobile processor. Its 25 W TDP is 55 times lower than the AMD part's 1400 W. The Intel part includes 16 ROPs and 4 ray tracing cores, enabling rasterization and ray-traced graphics, while the AMD part has zero ROPs and no ray tracing cores. The Intel part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, making it suitable for gaming and general graphics applications. The AMD part supports no graphics APIs and has no display outputs. The Intel part's pixel rate of 36.80 GPixel/s, while far lower than what the AMD part could theoretically produce if it had ROPs, is relevant for actual display output, which the AMD part cannot provide.

The AMD part is a compute accelerator with no display capability, designed for dense computational tasks. The Intel part is a mobile integrated GPU with full graphics API support and display output, designed for portable devices. Each device wins in its respective domain: the MI355X for server-side compute density and memory bandwidth, the Arc Graphics 4 Xe Mobile for integrated graphics functionality and power efficiency. The production status of the Intel part is active, while the AMD part's status is not recorded. Release dates indicate the Intel part launched later, in January 2026, versus June 2025 for the AMD part. Without benchmark data, these specification-based conclusions represent the extent of the recorded analysis.