AMD Radeon RX 6800M vs NVIDIA RTX PRO 2000 Blackwell Comparison

The AMD Radeon RX 6800M and NVIDIA RTX PRO 2000 Blackwell occupy very different positions in the database. The RX 6800M is an end-of-life mobile part from the Radeon RX 6000 series, built on RDNA 2.0, while the RTX PRO 2000 Blackwell is an active workstation GPU on the Blackwell 2.0 architecture. Across the ten recorded head-to-head benchmarks, the NVIDIA part wins all ten, with deltas ranging from a modest 5.7% to a dominant 58.7%. The average benchmark score for the RX 6800M is 28,874, placing it at the 74th percentile of all GPUs, while the RTX PRO 2000 Blackwell averages 25,269, sitting at the 70th percentile. This apparent contradiction, where the lower average score corresponds to a lower percentile, is explained by the benchmark mix: the NVIDIA card wins decisively in several Passmark tests that heavily weight its overall aggregate, while the AMD card holds closer in others.

Head-to-Head Benchmarks

The largest single win for the NVIDIA RTX PRO 2000 Blackwell comes in the Passmark G2D test, where it scores 1,303 against the RX 6800M’s 538, a delta of 58.7%. This is not a compute-bound workload; it reflects 2D rendering and memory operations, and the gap suggests the NVIDIA part’s architecture handles these tasks far more efficiently. The second-largest margin is in Passmark GPU Compute, with NVIDIA scoring 8,396 versus 5,032, a 40.1% advantage. This is a raw throughput test, and the RTX PRO 2000’s 17.03 TFLOPS FP32 peak versus the RX 6800M’s 12.24 TFLOPS aligns with that outcome.

Passmark DirectX 9 shows a 39% delta, with NVIDIA at 241 and AMD at 147. This legacy API test often favors architectures with stronger geometry and rasterization throughput per clock, and the numbers bear that out. Passmark G3D, a composite 3D graphics score, gives NVIDIA 20,049 against 13,261, a 33.9% lead. This is one of the most representative overall gaming-style metrics in the set, and the margin is substantial. Passmark DirectX 11 shows a 27% delta (174 vs. 127), while Passmark DirectX 12 shows an 18.7% delta (80 vs. 65). The narrower DX12 gap suggests that as APIs become more modern, the AMD part closes some distance, but it still trails.

In the Geekbench compute tests, the NVIDIA card leads by 17.4% in OpenCL (106,087 vs. 87,621) and by 16.8% in Vulkan (113,865 vs. 94,766). These are cross-platform compute benchmarks that stress shader and compute unit efficiency. The 3DMark Steel Nomad DX12 test, a modern DirectX 12 Ultimate workload, shows the smallest margin: NVIDIA scores 2,374.5 versus 2,238, a 5.7% edge. This is notable because it is the only test where the delta is in single digits. The RX 6800M’s higher boost clock of 2,390 MHz versus 1,957 MHz on the NVIDIA part likely helps close the gap in this specific workload.

The Passmark DirectX 10 test rounds out the set with NVIDIA at 122 versus AMD at 101, a 17.2% delta. Across all ten tests, the AMD part wins none. The average delta across the suite is roughly 27%, but the distribution is uneven: the NVIDIA card’s wins are concentrated in the Passmark suite, while the Geekbench and 3DMark results are closer. This pattern suggests that the RTX PRO 2000 Blackwell excels in driver-optimized legacy paths and 2D operations, while the RX 6800M remains competitive in modern, low-level API workloads.

Architecture Differences

The two GPUs are built on fundamentally different architectures and process nodes. The AMD Radeon RX 6800M uses the Navi 22 chip on RDNA 2.0, fabricated on a 7 nm process at TSMC. It packs 17,200 million transistors into a 335 mm² die, yielding a transistor density of 51.3 million per mm². The NVIDIA RTX PRO 2000 Blackwell uses the GB206 chip on Blackwell 2.0, also from TSMC but on a 5 nm process. It contains 21,900 million transistors on a much smaller 181 mm² die, resulting in a density of 121.0 million per mm², more than double the AMD part. This density difference is a direct consequence of the newer process node.

The RX 6800M’s base clock is 2,116 MHz, boosting to 2,390 MHz, with a game clock of 2,300 MHz. The RTX PRO 2000 Blackwell has a base clock of only 982 MHz and a boost of 1,957 MHz. Despite the lower clocks, the NVIDIA part achieves higher FP32 throughput (17.03 TFLOPS vs. 12.24 TFLOPS) because it has 4,352 shading units versus the AMD part’s 2,560. This is a 70% increase in shader count, which more than compensates for the clock deficit. The NVIDIA part also has 136 tensor cores, while the RX 6800M has none; the AMD part has 40 ray tracing cores, while the NVIDIA part has 34.

Memory configurations differ substantially. The RX 6800M uses 12 GB of GDDR6 on a 192-bit bus, delivering 384.0 GB/s of bandwidth. The RTX PRO 2000 Blackwell uses 16 GB of GDDR7 on a 128-bit bus, delivering 288.0 GB/s. The AMD part has higher bandwidth, but the NVIDIA part has more capacity and a newer memory type. The RX 6800M has 160 texture mapping units and 64 ROPs, while the NVIDIA part has 136 TMUs and 48 ROPs. This gives the AMD card a higher pixel rate (153.0 GPixel/s vs. 93.94 GPixel/s) and texture rate (382.4 GTexel/s vs. 266.2 GTexel/s), yet the NVIDIA card still wins all recorded benchmarks, indicating that raw ROP and TMU counts are not the limiting factor in these workloads.

The power envelope is another major differentiator. The RX 6800M is rated at 145 W TDP and is an integrated graphics package (IGP) with no power connectors. The RTX PRO 2000 Blackwell is a dual-slot card at 70 W TDP, also with no power connectors, but it suggests a 250 W power supply. The NVIDIA part delivers higher performance at roughly half the power draw, a striking efficiency advantage that reflects both the 5 nm process and the architecture’s design priorities.

FAQ

Q: Which GPU wins the most benchmark tests?

A: The NVIDIA RTX PRO 2000 Blackwell wins all ten recorded head-to-head tests. The AMD Radeon RX 6800M wins none. The deltas range from 5.7% in 3DMark Steel Nomad DX12 to 58.7% in Passmark G2D.

Q: How do their average benchmark scores compare?

A: The RX 6800M has an average benchmark score of 28,874, while the RTX PRO 2000 Blackwell averages 25,269. Despite the lower average, the NVIDIA part has a lower percentile rank (70th vs. 74th), because its wins are concentrated in tests that do not dominate the average calculation.

Q: What explains the 58.7% delta in Passmark G2D?

A: The Passmark G2D test measures 2D graphics performance. The RTX PRO 2000 Blackwell scores 1,303 versus 538 for the RX 6800M. This large gap indicates a significant difference in 2D rendering and memory management efficiency, likely tied to the NVIDIA part’s newer architecture and driver optimizations.

Q: Is the RX 6800M competitive in any modern workload?

A: Yes, in the 3DMark Steel Nomad DX12 test, the RX 6800M trails by only 5.7% (2,238 vs. 2,374.5). This is the closest result in the entire suite. The AMD part’s higher boost clock and wider memory bus help it remain competitive in this DirectX 12 Ultimate workload.

Q: What is the transistor density difference?

A: The RTX PRO 2000 Blackwell has a transistor density of 121.0 million per mm², fabricated on a 5 nm process. The RX 6800M has a density of 51.3 million per mm² on a 7 nm process. This is a 2.36x difference in density, which contributes to the NVIDIA part’s efficiency.

Q: Which GPU has more memory bandwidth?

A: The AMD Radeon RX 6800M has higher memory bandwidth at 384.0 GB/s, using 12 GB of GDDR6 on a 192-bit bus. The NVIDIA RTX PRO 2000 Blackwell has 288.0 GB/s from 16 GB of GDDR7 on a 128-bit bus. Despite lower bandwidth, the NVIDIA part wins all compute and graphics tests.

Specification Differences

The two GPUs differ in nearly every specification category. The process node is 7 nm for AMD versus 5 nm for NVIDIA. Transistor count is 17,200 million versus 21,900 million. Die size is 335 mm² versus 181 mm². Transistor density is 51.3M per mm² versus 121.0M per mm². The base clock is 2,116 MHz versus 982 MHz, and boost clock is 2,390 MHz versus 1,957 MHz. The AMD part has a game clock of 2,300 MHz, while the NVIDIA part has no game clock listed.

Memory size is 12 GB versus 16 GB, with GDDR6 versus GDDR7. Bus width is 192-bit versus 128-bit. Bandwidth is 384.0 GB/s versus 288.0 GB/s. Shading units are 2,560 versus 4,352. TMUs are 160 versus 136. ROPs are 64 versus 48. Ray tracing cores are 40 versus 34. Tensor cores are absent on AMD and 136 on NVIDIA. Pixel rate is 153.0 GPixel/s versus 93.94 GPixel/s. Texture rate is 382.4 GTexel/s versus 266.2 GTexel/s. FP32 is 12.24 TFLOPS versus 17.03 TFLOPS. FP16 is 24.47 TFLOPS (2:1) versus 17.03 TFLOPS (1:1).

TDP is 145 W versus 70 W. The RX 6800M is an IGP with no slot width, while the RTX PRO 2000 Blackwell is dual-slot. The NVIDIA part has dimensions of 167 mm length, 69 mm height, and 20 mm width, while the AMD part has no recorded dimensions. The bus interface is PCIe 4.0 x16 versus PCIe 5.0 x8. Display outputs are portable device dependent versus 4x mini-DisplayPort 2.1b. The AMD part is end-of-life, released May 2021, while the NVIDIA part is active, released August 2025. The predecessor is Polaris Mobile for AMD and Workstation Ada for NVIDIA.

Where Each One Wins

The NVIDIA RTX PRO 2000 Blackwell is the clear winner in every recorded benchmark. Its strongest areas relative to the AMD part are 2D graphics (58.7% lead in G2D), compute throughput (40.1% lead in GPU Compute), legacy DirectX 9 (39% lead), and overall 3D performance (33.9% lead in G3D). It also leads in DirectX 11 and DirectX 10 by 27% and 17.2%, respectively. The 16 GB of GDDR7 memory provides double the capacity of the RX 6800M’s 12 GB, which is relevant for large data sets and multi-application workstation workloads. The 136 tensor cores add AI and machine learning capability that the AMD part lacks entirely. The 70 W TDP makes it suitable for compact dual-slot systems with a 250 W suggested power supply.

The AMD Radeon RX 6800M does not win any benchmark, but it has specific technical advantages that matter in certain contexts. Its higher memory bandwidth (384.0 GB/s vs. 288.0 GB/s) and larger memory bus (192-bit vs. 128-bit) provide an edge in bandwidth-sensitive workloads, even though the recorded data does not show a win. Its pixel rate is 63% higher (153.0 GPixel/s vs. 93.94 GPixel/s) and texture rate is 44% higher (382.4 GTexel/s vs. 266.2 GTexel/s), which indicates strong rasterization throughput. The FP16 performance of 24.47 TFLOPS is also higher than the NVIDIA part’s 17.03 TFLOPS, though the NVIDIA part uses a 1:1 ratio while AMD uses 2:1.

For use cases, the RTX PRO 2000 Blackwell is the better choice for workstation tasks that rely on compute density, 2D output, and AI acceleration. Its wins in Passmark G3D and GPU Compute, combined with tensor cores and GDDR7 memory, position it for professional rendering, simulation, and inference workloads. The RX 6800M, despite its losses, retains value in scenarios where power draw is not a concern (145 W TDP) and where the higher memory bandwidth can be exploited. Its end-of-life status and lack of tensor cores limit its future-proofing, but the 74th percentile rank versus the 70th for NVIDIA suggests it remains a capable part in the broader GPU landscape.

The data shows a decisive overall victory for the NVIDIA part, but the narrow 5.7% margin in 3DMark Steel Nomad DX12 indicates that the AMD architecture is not obsolete in modern APIs. The choice between the two depends on whether the user prioritizes the NVIDIA part’s efficiency, memory capacity, and AI features, or the AMD part’s bandwidth, pixel throughput, and higher clock speeds.