Intel Arc Graphics 2 Xe Mobile vs Intel Arc Pro B390 Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results for these two integrated graphics processors. Both entries show empty benchmark arrays, zero recorded wins, and an average benchmark score of zero. The percentile versus all GPUs is identical at 50 for both parts, placing them at the median of the recorded GPU distribution despite the absence of measured performance data.

What can be compared directly are the theoretical throughput ceilings derived from the specification sheets. The Intel Arc Pro B390 delivers 7.680 TFLOPS of FP32 compute, which is exactly six times the 1,280.0 GFLOPS (1.28 TFLOPS) of the Intel Arc Graphics 2 Xe Mobile. In FP16 with 2:1 ratio operation, the gap remains proportional: 15.36 TFLOPS versus 2.560 TFLOPS, again a 6x advantage for the Pro B390.

Pixel throughput follows the same pattern. The Arc Pro B390 sustains 60.00 GPixel/s, triple the 20.00 GPixel/s of the Arc Graphics 2 Xe Mobile. Texture fill rate shows a 3x delta as well, with 120.0 GTexel/s on the Pro B390 versus 40.00 GTexel/s on the mobile part. These are raw architectural ceilings, not measured application performance, but they establish the performance envelope for each processor.

Both GPUs share identical clock behavior at 300 MHz base and 2500 MHz boost. Since the clocks match, every performance difference comes from the execution resource count, not from frequency headroom. The Pro B390 achieves its higher throughput purely through wider hardware.

Architecture Differences

Both processors are built on the same Xe3-LPG architecture, which is notable because they share the same 3 nm process node and the same foundry, Intel. The architecture generation is listed as "Arc Graphics-M (Wildcat Lake)" for the mobile part and "Arc Graphics-WM (Panther Lake)" for the Pro part. The underlying silicon differs: the Arc Graphics 2 Xe Mobile uses the Wildcat Lake chip, while the Arc Pro B390 uses the Panther Lake chip.

The execution resource gap is substantial. The Arc Graphics 2 Xe Mobile contains 256 shading units, 16 texture mapping units, 8 raster operations units, and 2 ray tracing cores. The Arc Pro B390 scales this up to 1536 shading units, 48 TMUs, 24 ROPs, and 12 ray tracing cores. That means the Pro B390 has 6x the shading units, 3x the TMUs, 3x the ROPs, and 6x the ray tracing cores.

The memory subsystem is identical in configuration terms. Both use System Shared memory, meaning there is no dedicated VRAM on either chip. The bus width is listed as System Shared, and the bandwidth is System Dependent, so actual memory performance will vary by host platform rather than by GPU design.

Power delivery is a major differentiator. The Arc Graphics 2 Xe Mobile carries a 25 W TDP, while the Arc Pro B390 is rated at 80 W. Neither uses external power connectors, and both are integrated graphics processors (IGP) with the IGP bus interface. The slot width for both is IGP, confirming neither is a discrete add-in card.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display outputs for both are Portable Device Dependent, meaning the physical connectors are determined by the host laptop or mobile workstation, not by the GPU itself. Production status is Active for both, and neither has a listed predecessor or successor in the current database beyond the legacy HD Graphics-M and HD Graphics-WM designations.

FAQ

Q: Which GPU has more shading units?

A: The Intel Arc Pro B390 has 1536 shading units. The Intel Arc Graphics 2 Xe Mobile has 256 shading units, which is one-sixth of the Pro B390 count.

Q: Do the two GPUs run at different clock speeds?

A: No. Both list a 300 MHz base clock and a 2500 MHz boost clock. The performance gap comes entirely from execution resource counts, not clock differences.

Q: Are both GPUs integrated or discrete?

A: Both are integrated graphics processors. Each lists IGP as the slot width and bus interface, and neither has power connectors. The memory type for both is System Shared.

Q: What is the power consumption difference?

A: The Arc Graphics 2 Xe Mobile is rated at 25 W TDP. The Arc Pro B390 is rated at 80 W TDP, which is 55 W higher.

Q: Do they support the same graphics APIs?

A: Yes. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Which GPU has more ray tracing cores?

A: The Arc Pro B390 has 12 ray tracing cores. The Arc Graphics 2 Xe Mobile has 2, so the Pro B390 has 6x the ray tracing hardware.

Specification Differences

The two processors differ across several specification fields. Shading units: 256 on the Arc Graphics 2 Xe Mobile versus 1536 on the Arc Pro B390. Texture mapping units: 16 versus 48. Raster operations units: 8 versus 24. Ray tracing cores: 2 versus 12.

Pixel rate: 20.00 GPixel/s on the mobile part versus 60.00 GPixel/s on the Pro part. Texture rate: 40.00 GTexel/s versus 120.0 GTexel/s. FP32 compute: 1,280.0 GFLOPS versus 7.680 TFLOPS. FP16 compute: 2.560 TFLOPS versus 15.36 TFLOPS, both operating at a 2:1 ratio.

TDP: 25 W on the Arc Graphics 2 Xe Mobile, 80 W on the Arc Pro B390. The chip designation differs: Wildcat Lake for the mobile GPU, Panther Lake for the Pro GPU. The generation label also differs: "Arc Graphics-M (Wildcat Lake)" versus "Arc Graphics-WM (Panther Lake)". The predecessor entries differ as well, with HD Graphics-M for the mobile part and HD Graphics-WM for the Pro part.

Release dates differ. The Arc Pro B390 carries a release date of 2026-01-26, while the Arc Graphics 2 Xe Mobile carries a release date of 2026-04-15. The Pro part entered the database earlier by roughly two and a half months.

Identical fields include base clock (300 MHz), boost clock (2500 MHz), memory size/type/bus width (System Shared), memory bandwidth (System Dependent), process node (3 nm), foundry (Intel), architecture (Xe3-LPG), slot width (IGP), power connectors (None), bus interface (IGP), display outputs (Portable Device Dependent), API support (DirectX 12 Ultimate 12_2, OpenGL 4.6, Vulkan 1.4), production status (Active), and percentile versus all GPUs (50).

The Verdict

The data paints a clear picture of two parts aimed at different segments within the same architecture family. The Intel Arc Pro B390 is the substantially larger design: 6x the shading units, 6x the ray tracing cores, 3x the TMUs, 3x the ROPs, and 6x the FP32 throughput. It also carries a higher 80 W TDP to feed that hardware. The Intel Arc Graphics 2 Xe Mobile is built for efficiency, with a 25 W TDP and a much narrower execution core.

For workloads that scale with raw shading throughput, pixel fill, and ray tracing hardware, the recorded specifications point squarely at the Arc Pro B390. Its 7.680 TFLOPS FP32 and 60.00 GPixel/s pixel rate are the highest figures in this comparison. The 12 ray tracing cores give it a clear advantage in any ray-traced workload that can use parallel RT hardware.

For systems with tight power budgets, the Arc Graphics 2 Xe Mobile offers the same architecture, the same clock speeds, and the same API support at one-third the TDP of the Pro B390. The 25 W rating makes it the only sensible choice among these two when power draw is the dominant constraint. It gives up 6x compute throughput but consumes 55 W less.

Both processors share the same 3 nm process, same Xe3-LPG architecture, same 300 MHz base and 2500 MHz boost clocks, and the same System Shared memory model. The choice between them is therefore a pure resource-versus-power trade. The Pro B390 wins on every raw performance metric in the database. The mobile part wins on power efficiency by the numbers available.

No measured benchmark results exist in the database to confirm real-world scaling, so the verdict rests entirely on the theoretical throughput figures and resource counts. The Arc Pro B390 should be preferred in any scenario where maximum integrated graphics throughput is the goal. The Arc Graphics 2 Xe Mobile should be preferred where the 80 W TDP of the Pro B390 is not acceptable and the 6x compute advantage cannot be utilized.

Both parts are Active in production status, and neither has a successor listed. The release date order puts the Arc Pro B390 first, with the Arc Graphics 2 Xe Mobile following later in the same year. Neither has a launch MSRP recorded in the database.