AMD Radeon AI PRO R9700 vs AMD Radeon RX 6600M Comparison

The AMD Radeon AI PRO R9700 and AMD Radeon RX 6600M occupy opposite ends of the GPU spectrum, yet their average benchmark scores are nearly identical. The R9700 posts an average of 23,315, while the RX 6600M scores 23,273, a difference of only 0.2%. This near-parity in aggregate hides a stark reality: the R9700 wins 9 of 10 head-to-head tests, often by massive margins, while the RX 6600M takes a single victory. The data suggests these are not interchangeable parts; they are specialized tools for different workloads.

Where Each One Wins

The AMD Radeon AI PRO R9700 is the clear winner in raw compute and modern API performance. In the 3DMark Steel Nomad DX12 test, it scores 7,006 versus the RX 6600M's 1,495, a 368.6% advantage. This is not a marginal lead; it is a generational gap. Similarly, in OpenCL compute, the R9700 scores 118,202 against 67,765, a 74.4% advantage. For GPU compute workloads like rendering, simulation, or AI inference, the R9700 is the only choice here. Its PassMark GPU Compute score of 15,300 dwarfs the RX 6600M's 5,646, a 171% difference.

The RX 6600M wins exactly one test: Geekbench Vulkan. It scores 73,740 versus the R9700's 63,550, a 13.8% advantage. This is a narrow win in a single API, suggesting the RX 6600M has a specific optimization or scheduling advantage in that Vulkan workload. However, this single victory is an outlier against a backdrop of overwhelming losses. The RX 6600M also loses every DirectX test, from DirectX 9 (184 vs 363, a 97.3% deficit) to DirectX 12 (52 vs 83, a 59.6% deficit). If a workload is built on DirectX or OpenCL, the R9700 is the winner. If it strictly uses Vulkan, the RX 6600M has a slight edge.

Architecture Differences

The two GPUs are built on different architectures and process nodes. The R9700 uses RDNA 4.0 on a 4 nm TSMC process, while the RX 6600M uses RDNA 2.0 on a 7 nm TSMC process. The R9700’s chip is Navi 48, with 53,900 million transistors on a 357 mm² die, yielding a density of 151.0M / mm². The RX 6600M’s Navi 23 chip has 11,060 million transistors on a 237 mm² die, with a density of 46.7M / mm². The R9700 has nearly five times the transistors, which directly explains its massive compute advantage.

The R9700 also has significantly more execution resources. It features 4,096 shading units, 256 TMUs, and 128 ROPs, compared to the RX 6600M’s 1,792 shading units, 112 TMUs, and 64 ROPs. Ray tracing hardware follows the same pattern: the R9700 has 64 RT cores, while the RX 6600M has 28. The R9700’s FP32 throughput is 47.84 TFLOPS, versus 8.659 TFLOPS for the RX 6600M. Notably, the R9700 runs FP16 at a 1:1 ratio (47.84 TFLOPS), while the RX 6600M runs FP16 at 2:1 (17.32 TFLOPS), meaning the R9700’s FP16 lead is even larger than its FP32 lead.

Memory is another major divider. The R9700 has 32 GB of GDDR6 on a 256-bit bus, delivering 644.6 GB/s of bandwidth. The RX 6600M has 8 GB on a 128-bit bus, delivering 224.0 GB/s. The R9700’s memory clock is 2518 MHz (20.1 Gbps effective), while the RX 6600M runs at 1750 MHz (14 Gbps effective). The R9700’s 32 GB capacity is critical for large datasets or high-resolution textures that would overflow the RX 6600M’s 8 GB frame buffer.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon AI PRO R9700 has an average benchmark score of 23,315, which is 0.2% higher than the RX 6600M’s 23,273. This is a negligible difference in aggregate.

Q: Is the RX 6600M faster in any benchmark?

A: Yes, the RX 6600M wins the Geekbench Vulkan test with a score of 73,740, compared to the R9700’s 63,550. This represents a 13.8% advantage for the RX 6600M.

Q: What is the biggest performance gap between the two?

A: The largest gap is in the 3DMark Steel Nomad DX12 test, where the R9700 scores 7,006 versus the RX 6600M’s 1,495. This is a 368.6% difference in favor of the R9700.

Q: How much memory does each GPU have?

A: The R9700 has 32 GB of GDDR6 memory on a 256-bit bus, while the RX 6600M has 8 GB of GDDR6 on a 128-bit bus. The R9700’s bandwidth is 644.6 GB/s, versus 224.0 GB/s for the RX 6600M.

Q: Which GPU is more power-hungry?

A: The R9700 has a TDP of 300 W and requires a 700 W power supply, while the RX 6600M has a TDP of 100 W and is an integrated form factor (IGP) with no power connectors.

Q: Are they in the same performance percentile?

A: Yes, the R9700 is in the 69th percentile of all GPUs, and the RX 6600M is in the 68th percentile. This is a one-percentile difference, reflecting their similar average scores.

Specification Differences

The two GPUs differ in nearly every specification field. The R9700 is built on a 4 nm process with 53,900 million transistors, while the RX 6600M uses a 7 nm process with 11,060 million transistors. The R9700 has a die size of 357 mm², compared to 237 mm² for the RX 6600M. Clock speeds differ: the R9700 has a base clock of 1660 MHz, a boost of 2920 MHz, and a game clock of 2350 MHz; the RX 6600M has a base of 2068 MHz, a boost of 2416 MHz, and a game clock of 2177 MHz. The R9700 has a higher boost clock but a lower base clock.

Memory specifications are vastly different: 32 GB versus 8 GB, 256-bit versus 128-bit bus, and 644.6 GB/s versus 224.0 GB/s bandwidth. The R9700 has 4,096 shading units, 256 TMUs, and 128 ROPs; the RX 6600M has 1,792, 112, and 64, respectively. RT cores are 64 versus 28. The R9700’s FP32 is 47.84 TFLOPS, while the RX 6600M’s is 8.659 TFLOPS. The R9700 has a TDP of 300 W and uses a 1x 16-pin power connector, while the RX 6600M is rated at 100 W with no connectors. The R9700 uses PCIe 5.0 x16, while the RX 6600M uses PCIe 4.0 x8. The R9700 has active production status and a launch MSRP of 1,299 USD; the RX 6600M is end-of-life.

Head-to-Head Benchmarks

The R9700 dominates the head-to-head results. In 3DMark Steel Nomad DX12, the R9700 scores 7,006 versus 1,495, a 368.6% advantage. This is the single largest delta in the dataset. In PassMark G3D, the R9700 scores 26,979 versus 13,929, a 93.7% lead. The R9700 also wins PassMark GPU Compute by 15,300 to 5,646, a 171% difference. In OpenCL, the R9700 leads 118,202 to 67,765, a 74.4% advantage.

The R9700 wins all legacy DirectX tests. In DirectX 9, it scores 363 versus 184, a 97.3% lead. In DirectX 10, it scores 155 versus 87, a 78.2% lead. In DirectX 11, it scores 272 versus 136, a 100% lead. In DirectX 12, it scores 83 versus 52, a 59.6% lead. The R9700 also wins PassMark G2D, scoring 1,236 versus 728, a 69.8% advantage.

The only RX 6600M win is in Geekbench Vulkan, where it scores 73,740 versus 63,550, a 13.8% advantage. This is the sole data point where the RX 6600M’s lower-power, lower-spec design outperforms the R9700. The RX 6600M also has a Geekbench Metal score of 92,237, but the R9700 has no Metal benchmark listed for comparison.

The Verdict

The data is unambiguous. The AMD Radeon AI PRO R9700 is the superior GPU for nearly every workload represented in the benchmark suite. It wins 9 of 10 head-to-head tests, with average leads ranging from 59.6% to 368.6%. Its 32 GB memory capacity and 644.6 GB/s bandwidth make it suitable for large-scale compute tasks, and its 47.84 TFLOPS FP32 performance is over 5.5 times higher than the RX 6600M’s 8.659 TFLOPS. The R9700’s 300 W TDP is a significant power draw, but it is the price of that performance.

The RX 6600M is a 100 W integrated part with 8 GB of memory. Its single Vulkan win shows it has some optimization in that specific API, but its losses in DirectX, OpenCL, and compute are catastrophic. The RX 6600M’s average score is dragged up by its Geekbench Metal score of 92,237, which is not comparable to the R9700’s benchmarks. Choose the R9700 for any serious rendering, compute, or modern gaming workload. Choose the RX 6600M only if a workload is exclusively Vulkan-based and power efficiency is paramount, as it is in a mobile or integrated context. The R9700’s 69th percentile ranking versus the RX 6600M’s 68th is misleading; the R9700 is a workstation-class part that happens to sit near a mobile chip in aggregate scores.