AMD Radeon RX 6600M vs Intel Arc A750 Comparison

Head-to-Head Benchmarks

The head-to-head data splits exactly evenly, with each GPU winning five of the ten recorded tests. However, the magnitude of those wins is far from symmetrical. The Intel Arc A750 dominates in the modern DirectX 12 and compute workloads, while the AMD Radeon RX 6600M counters with decisive victories in legacy DirectX tests and one important rasterization metric.

The single largest margin in either direction appears in the 3DMark Steel Nomad DX12 test. The Arc A750 scores 2612 against the RX 6600M's 1495, a 42.8% lead for Intel. This is the clearest signal in the entire comparison: in a current-generation DirectX 12 workload, the Arc A750 is in a different performance class. The gap is nearly half again as much performance, which suggests that the Intel architecture's raw throughput advantages translate directly into heavy modern API workloads.

The other substantial Intel win comes in Geekbench OpenCL, where the Arc A750 posts 98554 versus 67765 for the AMD part. That is a 31.2% advantage. This aligns with the raw shader output data: the Arc A750 has 3584 shading units and 17.20 TFLOPS FP32, versus 1792 shading units and 8.659 TFLOPS for the RX 6600M. The compute-heavy OpenCL test rewards that doubling of resources. The Geekbench Vulkan result is closer but still favors Intel: 85631 versus 73740, a 13.9% lead. The remaining Intel victory is in Passmark DirectX 12, where the Arc A750 scores 70 against 52, a 25.7% margin. This reinforces the pattern that Intel's strengths concentrate in DirectX 12 and generalized compute.

The AMD Radeon RX 6600M, meanwhile, wins the legacy API tests by large margins. In Passmark DirectX 11, the AMD part scores 136 against 72, a massive 88.9% advantage. This is the largest single-test delta in the entire comparison, and it is a stark reversal of the DirectX 12 results. In Passmark DirectX 10, AMD leads 87 to 65, a 33.8% margin. Even in the oldest DirectX 9 test, AMD edges out Intel: 184 versus 181, a narrow 1.7% win. The Passmark G3D test, which aggregates general 3D performance, also goes to AMD: 13929 versus 12534, an 11.1% advantage. Finally, the Passmark GPU Compute test is a modest AMD win at 5646 versus 5368, a 5.2% margin.

The Passmark G2D test is essentially a tie: Intel scores 732, AMD scores 728, a 0.5% difference. This is the closest recorded result and indicates that 2D operations are not a differentiator here.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The AMD Radeon RX 6600M uses the Navi 23 chip built on RDNA 2.0 architecture, manufactured on a 7 nm TSMC process. It packs 11,060 million transistors into a 237 mm² die, yielding a transistor density of 46.7M per mm². The Intel Arc A750 uses the DG2-512 chip on Xe-HPG architecture, built on a 6 nm TSMC process. It contains 21,700 million transistors across a 406 mm² die, for a density of 53.4M per mm². Intel's chip is both larger and denser, and it carries nearly double the transistor count.

The execution resources differ dramatically. The Arc A750 has 3584 shading units, 224 texture mapping units, and 112 render output units. The RX 6600M has 1792 shading units, 112 TMUs, and 64 ROPs. In every one of these categories, the Intel part has exactly double the resources of the AMD part. The ray tracing core count, however, is identical at 28 for both GPUs. Neither has tensor cores.

Memory architecture also diverges sharply. Both cards have 8 GB of GDDR6, but the Intel Arc A750 uses a 256 bit bus width with 512.0 GB/s of bandwidth, while the AMD RX 6600M uses a 128 bit bus with 224.0 GB/s. The Intel part has more than twice the memory bandwidth, which is critical for high-resolution textures and bandwidth-sensitive workloads. The memory clocks reflect this too: the Arc A750 runs at 2000 MHz with 16 Gbps effective, versus 1750 MHz with 14 Gbps effective for the AMD part.

Clock speeds are surprisingly close given the architectural differences. The AMD base clock is 2068 MHz with a boost of 2416 MHz and a game clock of 2177 MHz. The Intel base clock is 2050 MHz with a boost of 2400 MHz, and it has no separate game clock listed. The boost clocks are within 16 MHz of each other, which means the performance difference comes from resources and memory bandwidth, not clock speed.

The power envelopes are very different. The AMD RX 6600M has a TDP of 100 W, is an IGP form factor, and uses no power connectors. The Intel Arc A750 has a TDP of 225 W, is a dual-slot card, and requires one 6 pin and one 8 pin connector, with a suggested PSU of 550 W. The bus interfaces differ as well: PCIe 4.0 x8 for AMD, PCIe 4.0 x16 for Intel. Display outputs are portable-device dependent for the AMD mobile part, while the Intel card offers 1x HDMI 2.1 and 3x DisplayPort 2.0.

Where Each One Wins

The data points to a clear split based on API generation and workload type. The Intel Arc A750 wins in modern DirectX 12 scenarios, as shown by the 42.8% lead in 3DMark Steel Nomad DX12 and the 25.7% lead in Passmark DirectX 12. It also dominates in compute-oriented benchmarks, with the 31.2% OpenCL advantage and the 13.9% Vulkan lead. The 2D test is a statistical tie.

The AMD Radeon RX 6600M wins in legacy DirectX compatibility. The 88.9% DirectX 11 lead and the 33.8% DirectX 10 lead are decisive. It also wins the general 3D aggregate in Passmark G3D by 11.1%, which is interesting because that test includes a mix of workloads rather than a single API. The GPU compute test also goes to AMD, but by a modest 5.2%, which suggests that AMD's compute efficiency per resource is higher even if the raw resource count is lower.

For gaming, the choice depends on the API. A game running DirectX 12 will strongly favor the Intel Arc A750. A game running DirectX 11 or older will strongly favor the AMD RX 6600M. Since modern AAA titles increasingly use DirectX 12, the Intel card has an advantage for forward-looking workloads. However, the large library of older games and esports titles that rely on DirectX 11 would run better on the AMD part.

For compute tasks like OpenCL, the Intel Arc A750 is the clear pick. Its 31.2% lead in that benchmark reflects the doubling of shading units and FP32 throughput. For Vulkan workloads, the Intel card still wins, but by a smaller margin. The AMD part's efficiency in Passmark GPU Compute, despite raw disadvantages, suggests that some compute workloads may not scale linearly with resource counts.

Specification Differences

The two GPUs differ in nearly every major specification category. The process nodes are 7 nm for AMD versus 6 nm for Intel, both from TSMC. The transistor counts are 11,060 million versus 21,700 million. Die sizes are 237 mm² versus 406 mm². Transistor densities are 46.7M per mm² versus 53.4M per mm². Shading units are 1792 versus 3584. TMUs are 112 versus 224. ROPs are 64 versus 112. Ray tracing cores are equal at 28. FP32 performance is 8.659 TFLOPS versus 17.20 TFLOPS. FP16 performance is 17.32 TFLOPS versus 34.41 TFLOPS, both at a 2:1 ratio. Pixel rates are 154.6 GPixel/s versus 268.8 GPixel/s. Texture rates are 270.6 GTexel/s versus 537.6 GTexel/s. Memory bus widths are 128 bit versus 256 bit. Memory bandwidth is 224.0 GB/s versus 512.0 GB/s. TDP is 100 W versus 225 W. Power connectors are none versus 1x 6 pin plus 1x 8 pin. Suggested PSU is absent for AMD versus 550 W for Intel. Bus interfaces are PCIe 4.0 x8 versus PCIe 4.0 x16. The AMD card is IGP form factor, the Intel card is dual-slot.

The base clocks are nearly identical at 2068 MHz versus 2050 MHz. Boost clocks are 2416 MHz versus 2400 MHz. The AMD card has a game clock of 2177 MHz; the Intel card has no game clock listed. Memory size and type are identical: 8 GB GDDR6. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both are end-of-life products. The AMD card released on 2021-05-30, the Intel card on 2022-10-11. The Intel card has a launch MSRP of 289 USD. The AMD card has no launch MSRP listed. The AMD predecessor is Polaris Mobile; the Intel predecessor is Xe Graphics. The Intel successor is Battlemage; the AMD successor is not listed.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The Intel Arc A750 has 17.20 TFLOPS FP32 and 34.41 TFLOPS FP16, versus 8.659 TFLOPS FP32 and 17.32 TFLOPS FP16 for the AMD Radeon RX 6600M. The Intel part has exactly double the FP32 throughput.

Q: Why does the AMD card win the DirectX 11 test by such a large margin?

A: The Passmark DirectX 11 result shows AMD at 136 versus Intel at 72, an 88.9% advantage. The data indicates AMD's architecture maintains stronger legacy API performance, even though the Intel card has twice the shading units.

Q: Are the ray tracing capabilities different?

A: No. Both GPUs have exactly 28 ray tracing cores, and both support DirectX 12 Ultimate (12_2).

Q: Which card has more memory bandwidth?

A: The Intel Arc A750 has 512.0 GB/s over a 256 bit bus, versus 224.0 GB/s over a 128 bit bus for the AMD RX 6600M. Intel's bandwidth is more than double.

Q: What is the average benchmark score difference?

A: The AMD RX 6600M has an average benchmark score of 23273, while the Intel Arc A750 has 20582. The AMD part sits at the 68th percentile of all GPUs, the Intel part at the 66th percentile.

Q: How does the power consumption compare?

A: The AMD RX 6600M has a TDP of 100 W and requires no power connectors. The Intel Arc A750 has a TDP of 225 W, requires one 6 pin and one 8 pin connector, and needs a 550 W suggested PSU.

The Verdict

The data does not point to a single winner; it points to two different tools for two different jobs. The Intel Arc A750 is the superior choice for modern DirectX 12 gaming and compute-heavy workloads. Its 42.8% lead in 3DMark Steel Nomad DX12 and 31.2% lead in OpenCL are the strongest arguments in its favor. The doubling of shading units, TMUs, ROPs, and memory bandwidth, combined with the same ray tracing core count, makes it the more capable card for current-generation titles and GPU compute tasks. The launch MSRP of 289 USD places it in the market, though the 225 W TDP and dual-slot form factor mean it requires a more substantial power supply and chassis.

The AMD Radeon RX 6600M is the better choice for legacy DirectX 11 and DirectX 10 titles, where it leads by 88.9% and 33.8% respectively. It also wins the aggregated Passmark G3D test by 11.1%, which suggests that across a broad mix of workloads, AMD's efficiency per resource is higher. The 100 W TDP, IGP form factor, and no power connector requirement make it suitable for thinner, lower-power systems. Its average benchmark score of 23273 is higher than the Intel card's 20582, and its 68th percentile ranking beats Intel's 66th.

The deciding factor is the workload. If the priority is playing the latest DirectX 12 games or running OpenCL compute, the Intel Arc A750 is the clear choice from the recorded data. If the priority is broad compatibility with older APIs, lower power draw, or a compact form factor, the AMD RX 6600M is the better fit. The equal 5 to 5 split in test wins underscores that neither card is universally superior; the choice depends on which benchmarks matter most for the intended use case.