AMD Radeon RX 6900 XT vs Intel Arc A580 Comparison

The Intel Arc A580 and AMD Radeon RX 6900 XT occupy very different tiers in the discrete GPU market, and the benchmark data reflects a clear performance hierarchy. The RX 6900 XT, an end-of-life enthusiast-class part from the Radeon RX 6000 series, holds a decisive lead across every shared benchmark in this comparison, while the Arc A580, an active mainstream offering from Intel's Alchemist generation, posts scores that place it in a lower performance bracket. This analysis breaks down the data to determine where each card wins, who should choose which, and what the architecture tells us about those results.

Where Each One Wins

The benchmark results are unambiguous: the AMD Radeon RX 6900 XT wins every single head-to-head test conducted in this comparison. The data shows a 3-0 sweep in favor of AMD, with no benchmark in the shared suite where the Intel Arc A580 comes out ahead. The wins span both synthetic DirectX 12 testing and cross-API compute workloads, indicating a consistent performance advantage rather than one that is workload-specific.

In the 3DMark Steel Nomad DX12 test, the RX 6900 XT scores 4079 against the Arc A580's 2229, a delta of -45.4% for Intel. This is the closest margin of the three tests, yet still represents a massive gap. The Geekbench OpenCL test shows an even larger disparity, with the AMD card scoring 187673 versus 91657 for Intel, a -51.2% difference. The Vulkan test follows a similar pattern, with AMD at 148525 and Intel at 79381, a -46.6% delta. Across all three workloads, the RX 6900 XT delivers roughly double the performance of the Arc A580.

The Arc A580 does not secure a win in any category, but its percentile placement tells a different story about its overall standing. The Intel card sits at the 87th percentile of all GPUs, one point higher than the RX 6900 XT's 86th percentile, despite the AMD card's superior raw scores in this direct comparison. This suggests that the Arc A580's average benchmark score of 57756, which is higher than the RX 6900 XT's 50951, is buoyed by strong results in other tests not shared here. The nearest rivals for the Arc A580 include the AMD Radeon RX 6950 XT (delta -1.1%), the Intel Arc A570M (delta -0.8%), and the AMD Radeon RX 5600 OEM (delta -0.6%), placing it in a performance tier that is competitive with upper-midrange and previous-generation high-end parts.

The Verdict

Based strictly on the benchmark data, the AMD Radeon RX 6900 XT is the clear choice for users prioritizing raw performance in DirectX 12, OpenCL, and Vulkan workloads. The RX 6900 XT leads by 45-51% across the shared tests, a margin that translates into a substantially smoother experience in demanding applications. The data shows that for compute-heavy tasks or high-resolution gaming, the RX 6900 XT is in a different performance class entirely. Its 5120 shading units, 320 texture mapping units, and 128 render output units, combined with 23.04 TFLOPS of FP32 compute, provide the hardware resources needed to justify that advantage.

The Intel Arc A580, however, is not without merit. While it loses every head-to-head test, its higher percentile ranking and superior average benchmark score indicate that it performs well in contexts outside this specific comparison. The 87th percentile placement, above the RX 6900 XT's 86th, suggests that the Arc A580 competes favorably against a broad range of GPUs, including some that are nominally more powerful. For users with workloads that align with the Arc A580's strengths—those not represented in the shared benchmark suite—the Intel card may offer competitive performance. The data also shows the Arc A580 is an active product, while the RX 6900 XT is end-of-life, which could influence availability considerations.

The verdict is straightforward: choose the RX 6900 XT for maximum performance in the tested APIs, and consider the Arc A580 only if its specific feature set or the broader benchmark picture (as reflected in its higher average score) is more relevant to your use case. The RX 6900 XT is the performance winner; the Arc A580 is the percentile darling.

Head-to-Head Benchmarks

The most significant win for the AMD Radeon RX 6900 XT comes in the Geekbench OpenCL test, where it scores 187673 against the Intel Arc A580's 91657. This -51.2% delta is the largest margin in the entire head-to-head suite. OpenCL is a compute-oriented API, and the RX 6900 XT's massive advantage here—more than double the score—highlights the raw compute throughput advantage of the RDNA 2.0 architecture. The card's 23.04 TFLOPS of FP32 performance and 46.08 TFLOPS of FP16 performance dwarf the Arc A580's 12.29 and 24.58 TFLOPS respectively, and that compute headroom translates directly into this benchmark result.

The Geekbench Vulkan test shows a similar, though slightly smaller, gap. The RX 6900 XT scores 148525, while the Arc A580 manages 79381, a -46.6% delta. Vulkan is a low-level graphics and compute API, and the AMD card's advantage here indicates that its driver and hardware handle this modern API more efficiently. The RX 6900 XT also has a Geekbench Metal score of 177021, though the Arc A580 has no corresponding Metal result in the data, so no direct comparison is possible for that Apple-specific API.

The 3DMark Steel Nomad DX12 test narrows the gap slightly but still heavily favors AMD. The RX 6900 XT posts 4079 points versus 2229 for the Arc A580, a -45.4% delta. This test is a pure DirectX 12 workload, and the RX 6900 XT's 80 ray tracing cores and 128 ROPs give it a structural advantage over the Arc A580's 24 ray tracing cores and 96 ROPs. The pixel rate of 288.0 GPixel/s for AMD versus 192.0 GPixel/s for Intel further underscores the fill-rate advantage. While the Arc A580 loses this test, it is notably its 3DMark Steel Nomad score of 2229 is still a respectable result for a mainstream card, and the gap here is the smallest of the three shared benchmarks.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The Intel Arc A580 has a higher average benchmark score of 57756, compared to the AMD Radeon RX 6900 XT's 50951. This is despite the RX 6900 XT winning all head-to-head tests, indicating the Arc A580 performs well in benchmarks not shared between the two.

Q: What is the largest performance gap in the head-to-head tests?

A: The largest gap is in the Geekbench OpenCL test, where the AMD Radeon RX 6900 XT scores 187673 against the Intel Arc A580's 91657, a delta of -51.2% for Intel.

Q: How do the two GPUs compare in the 3DMark Steel Nomad DX12 test?

A: The AMD Radeon RX 6900 XT scores 4079, while the Intel Arc A580 scores 2229, giving AMD a -45.4% advantage over Intel in this DirectX 12 workload.

Q: Which GPU has a higher percentile ranking among all GPUs?

A: The Intel Arc A580 ranks at the 87th percentile, while the AMD Radeon RX 6900 XT ranks at the 86th percentile, despite the AMD card winning all direct comparisons.

Q: What are the nearest rivals to the Intel Arc A580?

A: The nearest rivals to the Intel Arc A580 are the AMD Radeon RX 5600 OEM (delta -0.6%), AMD Radeon RX 9070 GRE (delta 0.7%), Intel Arc A570M (delta -0.8%), and AMD Radeon RX 6950 XT (delta -1.1%).

Q: Does the AMD Radeon RX 6900 XT have any benchmark scores the Arc A580 lacks?

A: Yes, the RX 6900 XT has additional scores for Geekbench Metal (177021), Passmark DirectX 10 (167), DirectX 11 (279), DirectX 12 (113), DirectX 9 (268), G2D (1055), G3D (26732), and GPU Compute (14547), none of which appear in the Arc A580's benchmark list.

Architecture Differences

The two GPUs are built on fundamentally different architectures and process nodes. The Intel Arc A580 uses the Xe-HPG architecture on a 6 nm process at TSMC, while the AMD Radeon RX 6900 XT uses RDNA 2.0 on a 7 nm process, also at TSMC. The Intel chip, designated DG2-512, packs 21,700 million transistors into a 406 mm² die, achieving a transistor density of 53.4 million per mm². The AMD Navi 21 chip has 26,800 million transistors on a larger 520 mm² die, with a slightly lower density of 51.5 million per mm². The smaller, denser Intel process node gives the Arc A580 a manufacturing advantage, but the RX 6900 XT compensates with a larger die and more transistors.

Core counts differ substantially. The RX 6900 XT features 5120 shading units, 320 TMUs, and 128 ROPs, while the Arc A580 has 3072 shading units, 192 TMUs, and 96 ROPs. The AMD card also has 80 ray tracing cores compared to Intel's 24. These differences explain the performance gap: the RX 6900 XT has 67% more shading units, 67% more TMUs, and 33% more ROPs. The compute outputs follow suit, with the RX 6900 XT delivering 23.04 TFLOPS FP32 and 46.08 TFLOPS FP16, versus the Arc A580's 12.29 and 24.58 TFLOPS respectively.

Memory configurations are identical in bus width and bandwidth but differ in capacity. Both cards use GDDR6 memory on a 256-bit bus with 512.0 GB/s of bandwidth and 2000 MHz memory clock (16 Gbps effective). However, the RX 6900 XT has 16 GB of memory, double the Arc A580's 8 GB. This capacity difference can matter in memory-intensive workloads, though the shared bandwidth means neither card has a raw throughput advantage.

Clock speeds and power characteristics also diverge. The RX 6900 XT has a base clock of 1825 MHz, a game clock of 2015 MHz, and a boost clock of 2250 MHz, while the Arc A580 operates at 1700 MHz base and 2000 MHz boost. The AMD card's higher clocks contribute to its performance lead but come at a cost: a 300 W TDP versus 175 W for Intel. Both cards use dual 8-pin power connectors, though the RX 6900 XT requires a 700 W suggested PSU versus 450 W for the Arc A580. The RX 6900 XT is also larger, measuring 267 mm in length, 120 mm in height, and 50 mm in width, with a triple-slot cooler, while the Arc A580 is dual-slot.

Display outputs differ, with the Arc A580 offering 1x HDMI 2.1 and 3x DisplayPort 2.0, while the RX 6900 XT has 1x HDMI 2.1, 2x DisplayPort 1.4a, and 1x USB Type-C. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 6900 XT launched on 2020-10-27 with a launch MSRP of 999 USD, while the Arc A580 was released on 2023-10-09 with no MSRP listed. The AMD card is end-of-life, succeeded by Navi III, while the Intel card remains active and is succeeded by Battlemage.