Intel Arc Graphics 2 Xe Mobile vs Intel UHD Graphics 770 Mobile Comparison

Where Each One Wins

The recorded data for these two integrated graphics solutions shows a clear split in capabilities, though both occupy the same 256-shading-unit class. The Intel Arc Graphics 2 Xe Mobile, built on the Wildcat Lake chip with Xe3-LPG architecture, is the newer and more capable part. The Intel UHD Graphics 770 Mobile, based on Raptor Lake with Generation 12.2 architecture, is the older design that it directly succeeds.

The Arc Graphics 2 Xe Mobile wins on raw throughput in every measurable category. Its pixel rate reaches 20.00 GPixel/s, which is 7.20 GPixel/s higher than the UHD Graphics 770 Mobile's 12.80 GPixel/s. Texture rate follows the same pattern: 40.00 GTexel/s versus 25.60 GTexel/s. Floating-point performance shows a 1,280.0 GFLOPS figure for the Arc part against 819.2 GFLOPS for the UHD part, representing a 56.25% advantage in FP32 compute. FP16 performance is 2.560 TFLOPS (2:1) versus 1.638 TFLOPS (2:1).

The Arc Graphics 2 Xe Mobile also brings hardware ray tracing with 2 RT cores, a feature entirely absent from the UHD Graphics 770 Mobile, which lists no RT cores. This makes the Arc part the only one of the two capable of hardware-accelerated ray-traced workloads. The UHD Graphics 770 Mobile has no comparable feature in the database.

The boost clock difference reinforces the performance gap. The Arc part boosts to 2500 MHz, while the UHD part reaches only 1600 MHz. Both share a 300 MHz base clock, but the higher boost ceiling on the Arc part contributes directly to its higher throughput figures.

The API support favors the Arc part as well. It lists DirectX 12 Ultimate (12_2), while the UHD part lists DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The DirectX 12 Ultimate designation indicates support for the full feature set of the newer API tier, including features like ray tracing and mesh shaders, which aligns with the presence of RT cores on the Arc part.

Neither part wins on memory configuration, as both use System Shared memory with System Dependent bandwidth. The UHD Graphics 770 Mobile uses a Ring Bus interface, while the Arc Graphics 2 Xe Mobile lists IGP as its bus interface. The Arc part carries a 25 W TDP, which is 10 W higher than the UHD part's 15 W TDP.

Architecture Differences

The architectural gap between these two parts is substantial. The Arc Graphics 2 Xe Mobile uses the Xe3-LPG architecture on the Wildcat Lake chip, fabricated on a 3 nm process at Intel. The UHD Graphics 770 Mobile uses Generation 12.2 architecture on the Raptor Lake chip, fabricated on a 10 nm process, also at Intel. The process node difference from 10 nm to 3 nm is the largest single architectural differentiator, and it explains the Arc part's ability to reach higher clock speeds while maintaining a modest 25 W TDP.

Both parts share the same shading unit count of 256, the same TMU count of 16, and the same ROP count of 8. The core configuration is identical in terms of raw unit counts. The difference lies in what those units can accomplish per clock and what additional hardware is present.

The Arc Graphics 2 Xe Mobile adds 2 RT cores, which the UHD Graphics 770 Mobile does not have. This is a fundamental architectural addition, not just a clock speed improvement. The ray tracing hardware allows the Arc part to handle workloads that the UHD part cannot accelerate at all.

Clock behavior differs meaningfully. Both start at 300 MHz base, but the Arc part boosts to 2500 MHz, while the UHD part tops out at 1600 MHz. The 900 MHz boost advantage on the Arc part is a direct consequence of the more advanced 3 nm process, which permits higher operating frequencies within a reasonable power envelope.

The bus interface differs as well. The Arc Graphics 2 Xe Mobile uses IGP, while the UHD Graphics 770 Mobile uses Ring Bus. Both are integrated parts with no separate slot width, and both use System Shared memory with System Dependent bandwidth.

The release timeline shows the relationship between the two. The UHD Graphics 770 Mobile was released on 2023-01-03, and the Arc Graphics 2 Xe Mobile was released on 2026-04-15. The database lists the UHD part's successor as Arc Graphics-M, which is the generation to which the Arc Graphics 2 Xe Mobile belongs. The Arc part's predecessor is listed as HD Graphics-M, indicating a direct lineage.

Power consumption differs by 10 W. The Arc part is rated at 25 W TDP, the UHD part at 15 W TDP. This is the cost of the higher performance and the added ray tracing hardware.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two parts, and neither part has recorded benchmark scores. The winsA and winsB fields are both 0, and the headToHeadBenchmarks array is empty. However, the recorded specifications allow for direct comparison of theoretical throughput limits.

The pixel rate comparison is straightforward. The Arc Graphics 2 Xe Mobile delivers 20.00 GPixel/s, which is 7.20 GPixel/s higher than the UHD Graphics 770 Mobile's 12.80 GPixel/s. In percentage terms, the Arc part delivers 56.25% more pixel throughput. This translates directly to fill-rate-bound scenarios such as high-resolution rendering and post-processing effects.

Texture rate shows the same ratio. The Arc part achieves 40.00 GTexel/s against 25.60 GTexel/s for the UHD part. The 14.40 GTexel/s difference represents a 56.25% advantage. Texture-heavy workloads, including modern game rendering and image processing, will scale accordingly.

FP32 compute is where the gap is most visible. The Arc Graphics 2 Xe Mobile delivers 1,280.0 GFLOPS, while the UHD Graphics 770 Mobile delivers 819.2 GFLOPS. The 460.8 GFLOPS difference is again a 56.25% advantage for the Arc part. Compute workloads that rely on FP32 shader math will see proportional gains.

FP16 performance follows the same pattern. The Arc part lists 2.560 TFLOPS (2:1), and the UHD part lists 1.638 TFLOPS (2:1). The ratio holds at 56.25% faster for the Arc part. Both parts use a 2:1 FP16 to FP32 ratio, so the performance scaling is consistent across precision levels.

The boost clock comparison reinforces these numbers. The Arc part's 2500 MHz boost is 56.25% higher than the UHD part's 1600 MHz boost. This is not a coincidence: the shading unit count, TMU count, and ROP count are identical, so the throughput differences are entirely explained by the clock speed advantage. The 7.20 GPixel/s, 14.40 GTexel/s, and 460.8 GFLOPS deltas all trace back to the same 56.25% clock advantage.

Ray tracing is the one category where the UHD Graphics 770 Mobile has no comparable specification at all. The Arc part's 2 RT cores provide hardware acceleration for ray-traced workloads, while the UHD part has no such hardware. Any ray-traced workload will run on the Arc part with dedicated hardware support, while the UHD part cannot accelerate these tasks.

Both parts have the same memory configuration: System Shared size, type, bus width, and System Dependent bandwidth. Memory is not a differentiating factor in this comparison.

FAQ

Q: Which GPU has higher pixel throughput?

A: The Intel Arc Graphics 2 Xe Mobile delivers 20.00 GPixel/s, which is 7.20 GPixel/s higher than the Intel UHD Graphics 770 Mobile's 12.80 GPixel/s.

Q: Does the Intel UHD Graphics 770 Mobile support hardware ray tracing?

A: No. The database lists no RT cores for the UHD Graphics 770 Mobile. The Intel Arc Graphics 2 Xe Mobile includes 2 RT cores.

Q: What is the clock speed difference between the two parts?

A: Both have a 300 MHz base clock. The Arc Graphics 2 Xe Mobile boosts to 2500 MHz, while the UHD Graphics 770 Mobile boosts to 1600 MHz.

Q: Which API tier does each GPU support?

A: The Arc Graphics 2 Xe Mobile supports DirectX 12 Ultimate (12_2). The UHD Graphics 770 Mobile supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4.

Q: How much power does each GPU consume?

A: The Arc Graphics 2 Xe Mobile has a 25 W TDP. The UHD Graphics 770 Mobile has a 15 W TDP.

Q: Are the shading unit counts the same?

A: Yes. Both parts have 256 shading units, 16 TMUs, and 8 ROPs. The performance difference comes from clock speed and architecture, not unit counts.

The Verdict

The benchmark database shows a clear hierarchy. The Intel Arc Graphics 2 Xe Mobile outperforms the Intel UHD Graphics 770 Mobile in every recorded specification that allows direct comparison. The 56.25% advantage in pixel rate, texture rate, FP32 compute, and FP16 compute is consistent across all throughput metrics, and the Arc part adds hardware ray tracing that the UHD part lacks entirely.

The UHD Graphics 770 Mobile retains one advantage: power draw. Its 15 W TDP is 10 W lower than the Arc part's 25 W TDP. For systems where power budget is the primary constraint, the UHD part is the more efficient choice. The Arc Graphics 2 Xe Mobile delivers its higher performance at a 66.67% higher TDP, which is a reasonable trade for the performance gains on a 3 nm process.

The release timeline confirms the intended relationship. The UHD Graphics 770 Mobile released on 2023-01-03, and the database lists its successor as Arc Graphics-M. The Arc Graphics 2 Xe Mobile released on 2026-04-15 as part of that Arc Graphics-M generation. This is a direct generational replacement.

For applications that depend on pixel fill, texture filtering, or FP32 compute, the Arc Graphics 2 Xe Mobile is the stronger part by a substantial margin. For applications that need hardware ray tracing or DirectX 12 Ultimate features, the Arc part is the only option of the two. For systems with tight power constraints, the UHD Graphics 770 Mobile's lower TDP may be preferable, but the performance cost is significant.

Both parts use System Shared memory with System Dependent bandwidth, so memory configuration does not differentiate them. Both are integrated parts with no separate slot width. The decision between them comes down to performance versus power, and the data shows the Arc Graphics 2 Xe Mobile wins every performance comparison while the UHD Graphics 770 Mobile wins the power comparison.