AMD Radeon Pro Vega 64 vs NVIDIA RTX 4000 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a decisive overall advantage for the NVIDIA RTX 4000 Ada Generation in the two common tests where both GPUs have results. The NVIDIA card wins both head-to-head comparisons, with a 2-0 win record against the AMD Radeon Pro Vega 64.

In Geekbench OpenCL, the NVIDIA RTX 4000 Ada Generation scores 146,593 against 71,094 for the AMD Radeon Pro Vega 64. That is a delta of 106.2%, meaning the NVIDIA card is more than twice as fast in this compute workload. OpenCL is a cross-platform API, so this result is a strong indicator of general raw compute throughput, and the gap is substantial enough to classify these two cards in different performance tiers.

In Geekbench Vulkan, the NVIDIA RTX 4000 Ada Generation scores 123,842 versus 74,174 for the AMD Radeon Pro Vega 64. The delta here is 67%, which is smaller than the OpenCL gap but still a commanding lead for the NVIDIA part. Vulkan is a low-level graphics and compute API, and the NVIDIA architecture extracts a clearer advantage in this test as well.

When looking at the broader database context, the NVIDIA RTX 4000 Ada Generation sits at the 95th percentile among all GPUs, with an average benchmark score of 135,218. Its nearest rivals are all within a narrow band: the NVIDIA A10M averages 135,230 (a 0% delta), the AMD Radeon PRO W6800 averages 135,396 (a -0.1% delta), the AMD Radeon Pro W6800X Duo averages 135,774 (a -0.4% delta), and the AMD Radeon PRO V620 averages 136,472 (a -0.9% delta). This means the RTX 4000 Ada Generation is essentially at parity with these high-end workstation cards, trading blows within a single percentage point.

The AMD Radeon Pro Vega 64, by contrast, sits at the 91st percentile among all GPUs, with an average benchmark score of 72,379. Its nearest rivals are the NVIDIA TITAN X Pascal, which averages 72,098 (a 0.4% delta in favor of the AMD card), the AMD Radeon RX 6650M at 71,768 (a 0.9% delta in favor of the AMD card), the AMD Radeon Vega Frontier Edition at 73,370 (a -1.4% delta against it), and the AMD Radeon RX 6600 LE at 70,829 (a 2.2% delta in favor of the AMD card). The Vega 64 is therefore competitive with its immediate peers, but that peer group is far below the performance class of the RTX 4000 Ada Generation.

The average benchmark score difference between the two cards is stark: 135,218 versus 72,379. That puts the NVIDIA card at roughly 87% higher average performance across all recorded tests. The AMD card's best single result, its Geekbench Vulkan score of 74,174, is still less than two-thirds of the NVIDIA card's worst recorded result in the head-to-head tests.

Architecture Differences

The two GPUs come from different generations, process nodes, and architectural families, which explains the performance gulf. The NVIDIA RTX 4000 Ada Generation uses the AD104 chip built on the Ada Lovelace architecture, fabricated by TSMC on a 5 nm process. It packs 35,800 million transistors into a 294 mm² die, yielding a transistor density of 121.8 million per square millimeter. The AMD Radeon Pro Vega 64 uses the Vega 10 chip built on GCN 5.0, fabricated by GlobalFoundries on a 14 nm process. It contains 12,500 million transistors on a 495 mm² die, for a density of 25.3 million per square millimeter. The NVIDIA chip is not only denser, it is also physically smaller while holding nearly three times the transistor count.

The clock speeds follow the expected pattern for the newer process. The RTX 4000 Ada Generation runs at a base clock of 1500 MHz and boosts to 2175 MHz. The Radeon Pro Vega 64 has a base clock of 1250 MHz and a boost of 1350 MHz. The NVIDIA card's boost clock is over 800 MHz higher than the AMD card's boost, which compounds with the architectural efficiency advantage.

Memory subsystems differ fundamentally. The RTX 4000 Ada Generation has 20 GB of GDDR6 memory on a 160-bit bus, with a memory clock of 2250 MHz (18 Gbps effective) and a bandwidth of 360.0 GB/s. The Radeon Pro Vega 64 has 16 GB of HBM2 memory on a 2048-bit bus, with a memory clock of 786 MHz (1572 Mbps effective) and a bandwidth of 402.4 GB/s. The AMD card actually has higher raw memory bandwidth due to its very wide HBM2 interface, but the NVIDIA card has more capacity and a much higher effective clock per pin.

Compute resources are heavily skewed toward the NVIDIA card. The RTX 4000 Ada Generation has 6144 shading units, 192 texture mapping units, 64 render output units, 48 ray tracing cores, and 192 tensor cores. The Radeon Pro Vega 64 has 4096 shading units, 256 texture mapping units, and 64 render output units, but it has no ray tracing cores and no tensor cores at all. The NVIDIA card's pixel rate is 139.2 GPixel/s versus 86.40 GPixel/s for the AMD card, and its texture rate is 417.6 GTexel/s versus 345.6 GTexel/s.

Peak floating-point performance tells a clear story. The RTX 4000 Ada Generation delivers 26.73 TFLOPS in FP32 and the same 26.73 TFLOPS in FP16 (a 1:1 ratio). The Radeon Pro Vega 64 delivers 11.06 TFLOPS in FP32 and 22.12 TFLOPS in FP16 (a 2:1 ratio). The NVIDIA card is over 2.4 times faster in FP32, while the AMD card's FP16 advantage over its own FP32 is halved compared to the NVIDIA card's 1:1 FP16 ratio.

Power and physical specifications also diverge. The RTX 4000 Ada Generation has a TDP of 130 W, is a single-slot card with a 1x 16-pin power connector, and requires a 300 W suggested PSU. It measures 245 mm in length and 112 mm in height, and connects via PCIe 4.0 x16 with four DisplayPort 1.4a outputs. The Radeon Pro Vega 64 has a TDP of 250 W, is listed as an IGP (integrated GPU) with no power connectors, and uses PCIe 3.0 x16 with display outputs that are portable-device dependent. The NVIDIA card is far more power-efficient, delivering more than double the FP32 performance at about half the TDP.

API support differs as well. The NVIDIA card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD card supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The NVIDIA part has a newer DirectX feature level and a newer Vulkan revision.

The Verdict

Based strictly on the recorded data, the NVIDIA RTX 4000 Ada Generation is the superior GPU for any workload measured in these benchmarks. It wins both head-to-head tests, has a higher average benchmark score, a higher percentile ranking, and a much more modern architecture. The AMD Radeon Pro Vega 64 remains a competent card relative to its own peer group, but it is not in the same performance class as the NVIDIA part.

For users choosing between these two, the data points to the NVIDIA RTX 4000 Ada Generation for anyone prioritizing raw compute performance in OpenCL or Vulkan. The 106.2% lead in OpenCL and 67% lead in Vulkan are decisive. The AMD card's only redeeming feature in the data is its higher memory bandwidth of 402.4 GB/s versus 360.0 GB/s, but that advantage does not translate into any benchmark win.

The RTX 4000 Ada Generation is also the only one of the two with ray tracing and tensor cores, which are absent from the AMD card entirely. For any workload that uses those features, the NVIDIA card is the only option between the two.

FAQ

Q: Which GPU scores higher in Geekbench OpenCL?

A: The NVIDIA RTX 4000 Ada Generation scores 146,593, while the AMD Radeon Pro Vega 64 scores 71,094. That is a 106.2% delta in favor of the NVIDIA card.

Q: Does the AMD Radeon Pro Vega 64 win any benchmark against the RTX 4000 Ada Generation?

A: No. The head-to-head record shows 2 wins for the NVIDIA card and 0 wins for the AMD card across the two shared tests (OpenCL and Vulkan).

Q: What is the memory bandwidth of each GPU?

A: The AMD Radeon Pro Vega 64 has a bandwidth of 402.4 GB/s using HBM2 memory on a 2048-bit bus. The NVIDIA RTX 4000 Ada Generation has a bandwidth of 360.0 GB/s using GDDR6 memory on a 160-bit bus.

Q: Does the AMD Radeon Pro Vega 64 support ray tracing?

A: No. The AMD card has no ray tracing cores and no tensor cores. The NVIDIA RTX 4000 Ada Generation has 48 ray tracing cores and 192 tensor cores.

Q: What is the FP32 performance difference between the two?

A: The NVIDIA RTX 4000 Ada Generation delivers 26.73 TFLOPS in FP32, while the AMD Radeon Pro Vega 64 delivers 11.06 TFLOPS.

Q: How do the two GPUs compare in average benchmark score?

A: The NVIDIA RTX 4000 Ada Generation has an average benchmark score of 135,218, placing it at the 95th percentile. The AMD Radeon Pro Vega 64 has an average benchmark score of 72,379, placing it at the 91st percentile.

Where Each One Wins

The NVIDIA RTX 4000 Ada Generation wins in every benchmark category where both cards have recorded data. Its OpenCL performance is more than double the AMD card, and its Vulkan performance is 67% higher. The NVIDIA card also wins on raw compute metrics: FP32 TFLOPS (26.73 versus 11.06), pixel rate (139.2 GPixel/s versus 86.40 GPixel/s), and texture rate (417.6 GTexel/s versus 345.6 GTexel/s). It has more shading units (6144 versus 4096), more memory capacity (20 GB versus 16 GB), and a much newer process node (5 nm versus 14 nm). It is also the only card with ray tracing and tensor cores, which makes it the only choice for those workloads.

The AMD Radeon Pro Vega 64 wins in a few narrow technical categories that do not translate into benchmark victories. It has higher memory bandwidth (402.4 GB/s versus 360.0 GB/s), a wider memory bus (2048-bit versus 160-bit), more texture mapping units (256 versus 192), and a higher FP16 peak (22.12 TFLOPS versus 26.73 TFLOPS in absolute terms, though the NVIDIA card's FP16 is equal to its FP32). It also has a lower TDP at 250 W compared to the NVIDIA card's 130 W? No, that is incorrect: the NVIDIA card has the lower TDP at 130 W versus 250 W. The AMD card wins on memory bandwidth and texture units only.

For use-case selection, the data supports the NVIDIA RTX 4000 Ada Generation for any compute-heavy task measured by OpenCL or Vulkan, including general GPU compute, rendering, and any workload that can leverage its ray tracing or tensor cores. The AMD Radeon Pro Vega 64 could be considered only where its wider memory bus and higher raw bandwidth are specifically required, or where its 16 GB HBM2 pool is preferred, but the benchmark results do not show that preference producing any performance advantage in the recorded tests. The AMD card's peer group includes the NVIDIA TITAN X Pascal and the AMD Radeon Vega Frontier Edition, which are its natural competitors, not the RTX 4000 Ada Generation.