AMD Radeon RX 6700 vs NVIDIA RTX PRO 4500 Blackwell Comparison

The Verdict

The data is unambiguous: the NVIDIA RTX PRO 4500 Blackwell wins every single head-to-head benchmark in this comparison. Out of nine tests, it takes all nine. The AMD Radeon RX 6700 never once posts a higher score. The RTX PRO 4500 leads by double-digit margins across every category, with the smallest gap being 42.7% in Passmark G2D and the largest being a monstrous 248.8% in 3DMark Steel Nomad DX12. Its average benchmark score of 31532 sits 3.6% above the RX 6700's 30433, and while both cards sit in the mid-70s percentile against all GPUs (76th for NVIDIA, 75th for AMD), the similarity in percentile masks a chasm in raw capability. The RX 6700's nearest rivals include the GeForce RTX 3070 Ti (1.6% slower) and the Radeon RX 6800 (1.1% faster), placing it in solid mid-range company. The RTX PRO 4500, meanwhile, trades blows with the TITAN RTX (0.5% slower) and the Intel Arc Pro A30M (1.1% faster). For anyone needing maximum compute throughput, ray tracing, or large memory buffers, the RTX PRO 4500 is the clear choice. The RX 6700 only makes sense for someone who wants a functional, lower-power card and is willing to accept a 76% deficit in G3D and a 134% deficit in compute.

Architecture Differences

The two cards come from radically different design philosophies and process generations. The RTX PRO 4500 is built on NVIDIA's Blackwell 2.0 architecture, fabricated on a 5 nm TSMC node with 45,600 million transistors packed into a 378 mm² die, yielding a transistor density of 120.6 million per square millimeter. It uses the GB203 chip. The RX 6700 is AMD's RDNA 2.0 architecture, manufactured on a 7 nm TSMC node with 17,200 million transistors on a 335 mm² die, giving a density of just 51.3 million per square millimeter. The RTX PRO 4500 also benefits from a newer release date (March 2025 versus June 2021) and remains in active production, while the RX 6700 is end-of-life.

Memory configurations diverge sharply. The NVIDIA card offers 32 GB of GDDR7 on a 256-bit bus, delivering 896.0 GB/s of bandwidth. The AMD card provides 10 GB of GDDR6 on a 160-bit bus, with 320.0 GB/s. That is a 2.8x bandwidth advantage for NVIDIA and 3.2x the memory capacity. The RTX PRO 4500's memory clock runs at 1750 MHz (28 Gbps effective), compared to 2000 MHz (16 Gbps effective) on the RX 6700, but the wider bus and newer memory type win decisively.

Compute resources are also lopsided. The RTX PRO 4500 has 10,496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The RX 6700 has 2,304 shading units, 144 TMUs, 64 ROPs, and 36 RT cores — and no tensor cores at all. The NVIDIA card's FP32 throughput is 50.53 TFLOPS, while the AMD card manages 11.29 TFLOPS, a 4.5x difference. In FP16, the gap narrows slightly because the RX 6700 runs at 2:1 rate (22.58 TFLOPS) versus the RTX PRO 4500's 1:1 rate (50.53 TFLOPS), but NVIDIA still leads by 2.2x. Pixel rate favors NVIDIA at 269.6 GPixel/s versus 156.8 GPixel/s, and texture rate favors NVIDIA at 789.5 GTexel/s versus 352.8 GTexel/s.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX PRO 4500 uses PCIe 5.0 x16 and has four DisplayPort 2.1b outputs; the RX 6700 uses PCIe 4.0 x16 and offers one HDMI 2.1 plus three DisplayPort 1.4a. The NVIDIA card draws 200 W with a 550 W suggested PSU and a single 16-pin connector; the AMD card draws 175 W with a 450 W suggested PSU and a single 8-pin connector. Both are dual-slot, 267 mm long, and 40 mm wide, though the NVIDIA card is 1 mm taller.

Head-to-Head Benchmarks

The most decisive result comes from 3DMark Steel Nomad DX12, where the RTX PRO 4500 scores 7025 versus the RX 6700's 2014. That is a 248.8% advantage — meaning the NVIDIA card delivers more than triple the performance in this modern DirectX 12 test. This is the single largest delta in the entire comparison and signals a generational gap in raw rasterization and API efficiency.

In Geekbench Vulkan, the RTX PRO 4500 posts 221768 against 83974, a 164.1% lead. This test exercises both graphics and compute paths in the Vulkan API, and the NVIDIA card more than doubles the AMD result. The RX 6700 does have a Geekbench Metal score of 122223 and an OpenCL score of 97841, but there are no comparable Metal or OpenCL results for the RTX PRO 4500 in this dataset, so those cannot be directly compared.

Passmark G3D shows the RTX PRO 4500 at 33360 versus 18931, a 76.2% advantage. That is the closest major graphics test after the smaller API-specific tests. The gap in Passmark GPU Compute is even larger: 19255 versus 8240, a 133.7% lead. This confirms that the RTX PRO 4500's advantage grows with compute-heavy workloads, consistent with its 4.5x FP32 advantage and tensor core presence.

Across the legacy DirectX API tests, the RTX PRO 4500 leads consistently but by smaller margins. In Passmark DirectX 11, the score is 320 versus 166, a 92.8% difference. DirectX 10 shows 204 versus 115, a 77.4% lead. DirectX 12 shows 119 versus 71, a 67.6% lead. DirectX 9 shows 397 versus 250, a 58.8% lead. The pattern is clear: the NVIDIA card's advantage is largest in modern, compute-heavy workloads and narrows but never disappears in older API tests.

Passmark G2D, which measures 2D graphics performance, shows the smallest gap: 1336 versus 936, a 42.7% advantage for the RTX PRO 4500. Even in this non-gaming, non-compute scenario, the NVIDIA card wins by a substantial margin.

FAQ

Q: Which card has more memory and bandwidth?

A: The NVIDIA RTX PRO 4500 Blackwell has 32 GB of GDDR7 on a 256-bit bus with 896.0 GB/s bandwidth. The AMD Radeon RX 6700 has 10 GB of GDDR6 on a 160-bit bus with 320.0 GB/s bandwidth.

Q: How do the cards compare in compute performance?

A: The RTX PRO 4500 delivers 50.53 TFLOPS FP32 and 50.53 TFLOPS FP16 (1:1). The RX 6700 delivers 11.29 TFLOPS FP32 and 22.58 TFLOPS FP16 (2:1). In Passmark GPU Compute, the RTX PRO 4500 scores 19255 versus 8240, a 133.7% lead.

Q: Are both cards current-generation products?

A: No. The RTX PRO 4500 was released on March 17, 2025, and its production status is Active. The RX 6700 was released on June 8, 2021, and its production status is End-of-life.

Q: What are the power requirements?

A: The RTX PRO 4500 has a TDP of 200 W with a suggested PSU of 550 W and a single 16-pin connector. The RX 6700 has a TDP of 175 W with a suggested PSU of 450 W and a single 8-pin connector.

Q: Which card wins in the 3DMark Steel Nomad DX12 test?

A: The RTX PRO 4500 scores 7025 versus the RX 6700's 2014, a 248.8% advantage. This is the largest delta in any benchmark in this comparison.

Q: Do both cards support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the RTX PRO 4500 uses PCIe 5.0 x16 while the RX 6700 uses PCIe 4.0 x16.

Where Each One Wins

The RTX PRO 4500 wins everywhere in this dataset. It takes all nine head-to-head benchmarks, with no exceptions. The largest wins are in 3DMark Steel Nomad DX12 (248.8% ahead) and Geekbench Vulkan (164.1% ahead), which represent modern, API-agnostic performance. The smallest win is in Passmark G2D (42.7% ahead), which is a 2D graphics test that stresses neither card's compute resources.

The RX 6700 has no benchmark wins to claim. Its closest relative performance comes in the older DirectX API tests — DirectX 9 (58.8% behind) and DirectX 12 (67.6% behind) — where the NVIDIA card's lead is smallest but still decisive. The RX 6700's lower TDP (175 W versus 200 W) and smaller power connector requirement (8-pin versus 16-pin) make it a more modest installation, and its suggested PSU is 450 W versus 550 W. But those are power specification differences, not performance wins.

For a use-case split based purely on the data: the RTX PRO 4500 is the card for any workload that involves modern DirectX 12 rendering, Vulkan compute, or general GPU compute. Its 32 GB memory and 896 GB/s bandwidth make it suitable for large datasets and high-resolution textures. The RX 6700, with its 10 GB memory and 320 GB/s bandwidth, would be limited in those scenarios, and its compute scores are 134% lower. The RX 6700's only potential niche is in systems where the lower TDP and 8-pin connector are required, or where legacy DirectX 9/10/11 performance is sufficient — but even there, the RTX PRO 4500 leads by 59-93%. The data does not support any scenario where the RX 6700 outperforms the RTX PRO 4500.