AMD Radeon Pro Vega II Duo vs NVIDIA B200 Comparison

Where Each One Wins

The recorded data splits these two accelerators across completely different eras of GPU design. The NVIDIA B200 takes the sole head-to-head benchmark, a Geekbench OpenCL result where it posts a score of 345,482 against the AMD Radeon Pro Vega II Duo's 98,432. That is a 251% delta in favor of the B200, a margin that dwarfs anything else in the comparison set.

The AMD Radeon Pro Vega II Duo, however, does not go entirely winless in the broader context. Its Geekbench Metal score of 122,522 and Vulkan score of 99,296 show strengths in Apple-centric compute environments, though the B200 has no recorded Metal or Vulkan results to compare directly. The Vega II Duo also holds advantages in pixel throughput, with 110.1 GPixel/s versus the B200's 47.16 GPixel/s, and it offers display outputs (1x HDMI 2.0b and 4x Thunderbolt) where the B200 has none. For rasterization-heavy workloads that rely on pixel fill, the older AMD part is structurally superior.

The B200 wins on raw compute density. Its FP32 throughput of 74.45 TFLOPS is roughly 5.3 times the Vega II Duo's 14.09 TFLOPS. Its FP16 output of 1,191.2 TFLOPS (16:1) versus the AMD's 28.18 TFLOPS (2:1) is an even larger gap, reflecting the B200's tensor-core-driven design. The B200 also leads in memory bandwidth at 4.10 TB/s against 1.02 TB/s, and in texture rate at 1,163.3 GTexel/s versus 440.3 GTexel/s.

Where the Vega II Duo clearly wins is in the efficiency of its multi-GPU packaging. It is a dual-GPU card in a quad-slot form factor with a 475 W TDP, while the B200 is a single SXM module rated at 1000 W. The AMD part's 32 GB of HBM2 memory is split across two dies, while the B200's 90 GB of HBM3e is unified. For workloads that fit within a single GPU's memory, the B200's larger pool is decisive; for workloads that scale across two discrete GPUs, the Vega II Duo offers a parallel path that the B200 cannot replicate in the same physical slot.

The Verdict

The data points to a clear split by use case. The NVIDIA B200 is the choice for any compute workload where single-GPU throughput, memory capacity, or tensor performance dominates. Its OpenCL score of 345,482 places it at the 100th percentile of all GPUs in the database, and it leads its nearest rival, the NVIDIA H200 NVL, by 3.2%. The gap to the AMD Instinct MI300X is 8.6%, and to the NVIDIA L40S it is 16.8%. The B200 sits only behind the NVIDIA B300 SXM6 AC, which beats it by 6.6%. For anyone running large-scale AI training, scientific simulation, or HPC workloads, the B200's 90 GB of HBM3e and 4.10 TB/s of bandwidth make it the superior tool.

The AMD Radeon Pro Vega II Duo, at the 94th percentile, is a different animal. Its average benchmark score of 106,750 is within 3.6% of the AMD Radeon PRO W7900 and within 2.6% of the single Radeon Pro Vega II. It beats the NVIDIA Quadro RTX 6000 by 4.8%. This is a professional visualization card for Apple Mac Pro environments, as indicated by its Apple MPX bus interface and Thunderbolt outputs. It is end-of-life, but it still holds relevance for users locked into that ecosystem who need dual-GPU compute without moving to a newer platform.

The verdict is straightforward: the B200 is a server accelerator for maximum compute; the Vega II Duo is a workstation card for Apple-centric raster and compute tasks. There is no scenario in the recorded data where the Vega II Duo outperforms the B200 on a unified benchmark, but there are scenarios where its display outputs, pixel rate, and lower power draw make it the only viable option for a particular chassis or software stack.

Head-to-Head Benchmarks

The only direct head-to-head result in the database is Geekbench OpenCL. The NVIDIA B200 scores 345,482, while the AMD Radeon Pro Vega II Duo scores 98,432. That is a delta of 251%, meaning the B200 delivers roughly 3.5 times the OpenCL performance of the Vega II Duo. This is not a marginal win; it is a generational leap. The B200's FP32 throughput of 74.45 TFLOPS compared to 14.09 TFLOPS for the AMD part explains most of the gap, as does the B200's 4.10 TB/s memory bandwidth versus 1.02 TB/s.

The Vega II Duo's best showing in any recorded benchmark is its Metal score of 122,522, which is 24.5% higher than its OpenCL score. This suggests the AMD architecture is better optimized for Apple's Metal API than for OpenCL. However, there is no B200 Metal score to compare, so this advantage exists only in isolation. The Vulkan score of 99,296 is similarly close to the OpenCL figure, indicating consistent performance across those two APIs on the AMD part.

The B200's nearest rival comparisons reinforce its standing. Against the NVIDIA H200 NVL, it is 3.2% faster, a slim but real margin. Against the AMD Instinct MI300X, it is 8.6% faster. Against the NVIDIA L40S, it is 16.8% faster. Only the B300 SXM6 AC, a newer Blackwell part, beats it, and that by 6.6%. The Vega II Duo, by contrast, trades blows with much older workstation cards: it is 0.6% slower than the Radeon Pro W6600X, 2.6% slower than the Radeon Pro Vega II, and 3.6% slower than the Radeon PRO W7900. It beats the Quadro RTX 6000 by 4.8%.

What this means in practice is that the B200 is not just faster than the Vega II Duo; it is in a different performance class entirely. The 251% OpenCL delta is larger than the gap between the Vega II Duo and any of its rivals, which range from -3.6% to +4.8%. The B200's closest competitor, the B300 SXM6 AC, is within single digits, but the Vega II Duo's closest competitors are also within single digits. The difference is that the B200 sits at the top of the absolute scale, while the Vega II Duo sits in the middle of the workstation pack.

FAQ

Q: Which GPU has a higher OpenCL benchmark score?

A: The NVIDIA B200 scores 345,482, which is 251% higher than the AMD Radeon Pro Vega II Duo's 98,432.

Q: Does the AMD Radeon Pro Vega II Duo support more display outputs than the NVIDIA B200?

A: Yes. The Vega II Duo has 1x HDMI 2.0b and 4x Thunderbolt outputs, while the B200 has no display outputs.

Q: What is the memory capacity difference between the two cards?

A: The B200 has 90 GB of HBM3e memory, while the Vega II Duo has 32 GB of HBM2 memory. Both use a 4096-bit bus, but the B200's bandwidth is 4.10 TB/s versus 1.02 TB/s.

Q: How does the B200 compare to its nearest rival, the NVIDIA H200 NVL?

A: The B200 is 3.2% faster than the H200 NVL in average benchmark score, with 345,482 versus 334,891.

Q: Is the Vega II Duo still competitive with modern workstation GPUs?

A: It is within 3.6% of the AMD Radeon PRO W7900 and within 2.6% of the single Radeon Pro Vega II, but it is 0.6% slower than the Radeon Pro W6600X.

Q: What is the pixel rate difference between the two?

A: The Vega II Duo has a higher pixel rate at 110.1 GPixel/s, compared to the B200's 47.16 GPixel/s, despite the B200's overall compute advantage.

Architecture Differences

The NVIDIA B200 is built on the Blackwell architecture using the GB100 chip, fabricated on a 5 nm process at TSMC. It packs 104,000 million transistors. The AMD Radeon Pro Vega II Duo uses the Vega 20 chip with GCN 5.1 architecture, also from TSMC but on a 7 nm process, with 13,230 million transistors and a 331 mm² die size. The B200 has no listed die size, but its transistor count is roughly 7.9 times higher.

The B200's core configuration is substantially larger: 18,944 shading units, 592 TMUs, and 24 ROPs. The Vega II Duo has 4,096 shading units, 256 TMUs, and 64 ROPs. The B200 has 592 tensor cores, while the Vega II Duo has none. The B200's FP32 output is 74.45 TFLOPS, its FP16 is 1,191.2 TFLOPS (16:1 ratio), and its texture rate is 1,163.3 GTexel/s. The Vega II Duo delivers 14.09 TFLOPS FP32, 28.18 TFLOPS FP16 (2:1 ratio), and 440.3 GTexel/s.

Memory architecture diverges sharply. The B200 uses 90 GB of HBM3e on a 4096-bit bus with 4.10 TB/s bandwidth. The Vega II Duo uses 32 GB of HBM2 on the same 4096-bit bus but with only 1.02 TB/s bandwidth. Clock speeds tell a different story: the B200 has a base clock of 700 MHz and a boost of 1965 MHz, while the Vega II Duo runs at 1400 MHz base and 1720 MHz boost. The B200's lower base clock is offset by its massive core count.

Power and form factor also differ. The B200 is an SXM module with a 1000 W TDP and a suggested PSU of 1400 W. The Vega II Duo is a quad-slot card with a 475 W TDP and a suggested PSU of 850 W. The B200 uses PCIe 5.0 x16, while the Vega II Duo uses Apple MPX. The B200 has no API support listed for DirectX, OpenGL, or Vulkan, while the Vega II Duo supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3.

The B200's production status is active, with its predecessor listed as Server Hopper and its successor as Server Rubin. The Vega II Duo is end-of-life, released on 2019-06-02 with no listed predecessor or successor. The B200 has a launch MSRP of none, while the Vega II Duo has a launch MSRP of 4,399 USD. The Vega II Duo's display outputs and Apple MPX interface mark it as a Mac Pro workstation part, whereas the B200's lack of outputs and server-oriented SXM form factor define it as a pure compute accelerator.