AMD Radeon Pro Vega 64 vs AMD Radeon RX 6950 XT Comparison

AMD Radeon Pro Vega 64 and AMD Radeon RX 6950 XT represent two distinct generations of AMD graphics hardware, and the recorded benchmark data shows a clear performance hierarchy between them. The RX 6950 XT, built on the RDNA 2 architecture, outperforms the older GCN-based Pro Vega 64 across every shared test in the database, with the Pro Vega 64 failing to secure a single head-to-head victory. The following analysis breaks down where each card wins, examines their architectural differences, and interprets the benchmark scores to guide selection based on measured performance.

Where Each One Wins

Based on the recorded head-to-head benchmarks, the AMD Radeon RX 6950 XT wins every single test in the comparison. The Pro Vega 64 does not claim a single benchmark victory in the database, with a final tally of 0 wins for the Pro Vega 64 and 3 wins for the RX 6950 XT. This is a one-sided matchup where the newer card dominates across all measured workloads.

The RX 6950 XT shows its strongest relative advantage in the Geekbench Metal test, where it scores 222653 against the Pro Vega 64’s 71868, a delta of -67.7% from the perspective of the older card. This indicates that the RX 6950 XT is roughly three times faster in Metal compute workloads. The OpenCL test shows a similar pattern: the RX 6950 XT scores 205998 versus 71094, a 65.5% gap, while the Vulkan test narrows the margin somewhat to 55.1%, with the RX 6950 XT scoring 165212 against 74174.

For the Pro Vega 64, its only notable positioning comes from its overall percentile ranking. It sits at the 91st percentile among all GPUs in the database, which is higher than the RX 6950 XT’s 88th percentile. This discrepancy exists because the Pro Vega 64’s average benchmark score of 72379 is based on a much smaller set of tests (three Geekbench workloads), while the RX 6950 XT’s average of 58392 incorporates a broader range of tests including Passmark and 3DMark, which drag down its average. In direct comparison, however, the RX 6950 XT is unequivocally faster.

Architecture Differences

The two cards are separated by a full architecture generation. The Pro Vega 64 uses the Vega 10 chip with GCN 5.0 architecture, manufactured on a 14 nm process at GlobalFoundries. The RX 6950 XT uses the Navi 21 chip with RDNA 2.0 architecture, built on a 7 nm process at TSMC. This process shrink allows the RX 6950 XT to pack 26,800 million transistors on a 520 mm² die, compared to 12,500 million transistors on a 495 mm² die for the Pro Vega 64. The transistor density more than doubles from 25.3 million per mm² to 51.5 million per mm².

Memory configurations differ substantially. The Pro Vega 64 uses 16 GB of HBM2 memory on a 2048-bit bus, delivering 402.4 GB/s of bandwidth. The RX 6950 XT also has 16 GB, but uses GDDR6 on a 256-bit bus, with a higher bandwidth of 576.0 GB/s. Despite the narrower bus, the faster GDDR6 memory provides a 43% bandwidth advantage. The RX 6950 XT also has more execution resources: 5120 shading units, 320 TMUs, and 128 ROPs, versus 4096 shading units, 256 TMUs, and 64 ROPs on the Pro Vega 64. The RX 6950 XT adds 80 ray tracing cores, a feature entirely absent from the Pro Vega 64.

Clock speeds are significantly higher on the newer card. The RX 6950 XT has a base clock of 1860 MHz and a boost of 2310 MHz, with a game clock of 2100 MHz. The Pro Vega 64 runs at 1250 MHz base and 1350 MHz boost. This clock advantage, combined with the architectural improvements, explains the large performance gap. The RX 6950 XT also supports PCIe 4.0 x16, whereas the Pro Vega 64 is limited to PCIe 3.0 x16. API support differs as well: the RX 6950 XT supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Pro Vega 64 supports DirectX 12 (12_1) and Vulkan 1.3.

Head-to-Head Benchmarks

The database records three head-to-head benchmark comparisons, all of which the RX 6950 XT wins. The largest margin comes in Geekbench Metal, where the RX 6950 XT scores 222653 and the Pro Vega 64 scores 71868. This translates to the RX 6950 XT being 67.7% faster, meaning it more than triples the older card’s score. For Metal-centric applications, such as those on macOS, this is a decisive advantage.

In Geekbench OpenCL, the RX 6950 XT scores 205998 against 71094 for the Pro Vega 64, a 65.5% lead. The RX 6950 XT is again roughly three times faster in raw compute throughput. The closest margin is in Geekbench Vulkan, where the RX 6950 XT scores 165212 and the Pro Vega 64 scores 74174. Here the gap narrows to 55.1%, but the RX 6950 XT still maintains a substantial lead, being more than twice as fast.

The Pro Vega 64’s individual benchmark scores across its three tests range from 71094 to 74174, showing relative consistency. The RX 6950 XT’s scores vary more widely, from 165212 in Vulkan to 222653 in Metal, indicating that its performance is workload-dependent. The Vulkan test remains the weakest for the RX 6950 XT relative to the other two, but it still far exceeds the Pro Vega 64’s best result. The data shows that the RX 6950 XT does not just win; it wins by a margin that makes the Pro Vega 64 non-competitive in these specific tests.

The Verdict

From the recorded data, the AMD Radeon RX 6950 XT is the clear choice for any workload represented by these benchmarks. It wins all three head-to-head tests with deltas between 55.1% and 67.7%, meaning it is between two and three times faster than the Pro Vega 64 in Metal, OpenCL, and Vulkan compute tasks. The RX 6950 XT’s architectural advantages, including a smaller process node, higher clocks, more shading units, and ray tracing support, are reflected directly in these scores.

The Pro Vega 64 retains a higher percentile ranking (91st versus 88th), but this is an artifact of the benchmark selection. Its average score of 72379 comes from only three Geekbench tests, while the RX 6950 XT’s lower average of 58392 is dragged down by Passmark and 3DMark results that are not directly comparable. In a direct matchup, the Pro Vega 64 has no measured advantage.

Buyers should select the RX 6950 XT if they need maximum compute performance in Metal, OpenCL, or Vulkan applications. The Pro Vega 64 would only be relevant for legacy systems requiring its specific IGP form factor or its lack of external power connectors, both of which are niche concerns. The RX 6950 XT’s triple-slot cooler and 2x 8-pin power connectors require a 700 W PSU, whereas the Pro Vega 64 is an integrated graphics processor with no power connectors. For all measured performance criteria, the RX 6950 XT is superior.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon Pro Vega 64 has a higher average benchmark score of 72379, compared to 58392 for the AMD Radeon RX 6950 XT. However, this is due to different test sets; the RX 6950 XT wins every head-to-head test.

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

A: The largest gap is in Geekbench Metal, where the RX 6950 XT scores 222653 versus 71868 for the Pro Vega 64, a delta of -67.7% from the older card’s perspective.

Q: Does the RX 6950 XT support ray tracing?

A: Yes, the RX 6950 XT has 80 ray tracing cores. The Pro Vega 64 has no ray tracing cores listed in its specifications.

Q: How do the memory bandwidths compare?

A: The RX 6950 XT has a memory bandwidth of 576.0 GB/s using GDDR6 on a 256-bit bus. The Pro Vega 64 has 402.4 GB/s using HBM2 on a 2048-bit bus.

Q: What is the process node difference?

A: The Pro Vega 64 is built on a 14 nm process, while the RX 6950 XT is built on a 7 nm process. The RX 6950 XT also has a higher transistor density of 51.5 million per mm² versus 25.3 million per mm².

Q: Which card has a higher pixel rate?

A: The RX 6950 XT has a pixel rate of 295.7 GPixel/s, compared to 86.40 GPixel/s for the Pro Vega 64, making it over three times faster in pixel throughput.

Specification Differences

| Specification | AMD Radeon Pro Vega 64 | AMD Radeon RX 6950 XT |

|---------------|------------------------|------------------------|

| Architecture | GCN 5.0 | RDNA 2.0 |

| Process Node | 14 nm | 7 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | 12,500 million | 26,800 million |

| Die Size | 495 mm² | 520 mm² |

| Transistor Density | 25.3M / mm² | 51.5M / mm² |

| Base Clock | 1250 MHz | 1860 MHz |

| Boost Clock | 1350 MHz | 2310 MHz |

| Game Clock | None | 2100 MHz |

| Memory Type | HBM2 | GDDR6 |

| Memory Bus Width | 2048 bit | 256 bit |

| Memory Bandwidth | 402.4 GB/s | 576.0 GB/s |

| Shading Units | 4096 | 5120 |

| TMUs | 256 | 320 |

| ROPs | 64 | 128 |

| RT Cores | None | 80 |

| Pixel Rate | 86.40 GPixel/s | 295.7 GPixel/s |

| Texture Rate | 345.6 GTexel/s | 739.2 GTexel/s |

| FP32 Performance | 11.06 TFLOPS | 23.65 TFLOPS |

| FP16 Performance | 22.12 TFLOPS | 47.31 TFLOPS |

| TDP | 250 W | 335 W |

| Slot Width | IGP | Triple-slot |

| Power Connectors | None | 2x 8-pin |

| Suggested PSU | None | 700 W |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| DirectX Support | 12 (12_1) | 12 Ultimate (12_2) |

| Vulkan Support | 1.3 | 1.4 |

| Release Date | 2017-06-26 | 2022-05-09 |

| Launch MSRP | None | 1,099 USD |