AMD Radeon Pro W6900X vs NVIDIA RTX 5000 Ada Generation Comparison

NVIDIA RTX 5000 Ada Generation leads the AMD Radeon Pro W6900X in both shared benchmark tests, but the AMD card counters with a strong showing in Apple-specific Metal workloads. The RTX 5000 Ada posts a 34.8% higher OpenCL score and a 30.3% higher Vulkan score, while the W6900X reaches 226821 in Geekbench Metal — a test the NVIDIA card does not appear in. These are workstation-focused cards with 32 GB of memory each, but they target different ecosystems: the RTX 5000 Ada is a PCIe 4.0 x16 board with four DisplayPort outputs, while the W6900X uses the Apple MPX interface with Thunderbolt connectivity.

FAQ

Q: Which card is faster in OpenCL and Vulkan?

A: The NVIDIA RTX 5000 Ada Generation wins both. It scores 175286 in OpenCL versus 130035 for the AMD Radeon Pro W6900X, a 34.8% advantage. In Vulkan, the RTX 5000 Ada scores 194041 versus 148865, a 30.3% lead.

Q: Does the AMD card win any benchmark?

A: The AMD Radeon Pro W6900X wins the Geekbench Metal test with a score of 226821. The NVIDIA RTX 5000 Ada Generation has no Metal benchmark listed in the data, so this is a category where AMD holds sole possession.

Q: How do their average benchmark scores compare?

A: The RTX 5000 Ada has an average benchmark score of 184664, placing it in the 98th percentile of all GPUs. The W6900X averages 168574, sitting in the 97th percentile. The NVIDIA card leads by roughly 9.5% in average score.

Q: What are the nearest rivals for each card?

A: The RTX 5000 Ada's closest competitor is the NVIDIA A100 SXM4 80 GB, which trails by just 0.5% in average score. For the W6900X, the NVIDIA RTX 4500 Ada Generation is closest, coming in 1.5% behind.

Q: Which card has higher power requirements?

A: The AMD Radeon Pro W6900X has a 300 W TDP and a suggested PSU of 700 W. The NVIDIA RTX 5000 Ada Generation has a 250 W TDP with a suggested PSU of 600 W. The AMD card draws more power and needs a larger PSU.

Q: Are both cards still in production?

A: No. The NVIDIA RTX 5000 Ada Generation is listed as Active in production status. The AMD Radeon Pro W6900X is marked End-of-life.

The Verdict

The data points to two distinct purchasing decisions. If you work in a PC workstation environment and rely on OpenCL or Vulkan acceleration, the NVIDIA RTX 5000 Ada Generation is the clear choice — it holds a 34.8% OpenCL lead and a 30.3% Vulkan lead over the W6900X. Its average benchmark score of 184664 outpaces the AMD card's 168574, and it does so at a lower TDP of 250 W versus 300 W.

If you are building inside a Mac Pro or another Apple MPX-based system, the AMD Radeon Pro W6900X is the only option that fits the interface. It also delivers a strong Metal score of 226821, which is relevant for macOS applications that leverage Apple's graphics API. The W6900X is end-of-life, so availability may be limited, but its 32 GB of GDDR6 memory matches the RTX 5000 Ada's capacity.

For raw compute throughput, the NVIDIA card's FP32 rating of 65.28 TFLOPS is nearly triple the AMD card's 22.23 TFLOPS. The RTX 5000 Ada also has a higher pixel rate (448.8 GPixel/s vs 277.9 GPixel/s) and texture rate (1,020.0 GTexel/s vs 694.7 GTexel/s). The AMD card's FP16 performance of 44.46 TFLOPS is higher than its FP32, but that 2:1 ratio still falls short of the NVIDIA card's 1:1 FP16 at 65.28 TFLOPS.

Head-to-Head Benchmarks

The two shared benchmarks tell a consistent story. In Geekbench OpenCL, the RTX 5000 Ada scores 175286 against the W6900X's 130035. That 34.8% delta is substantial — it means the NVIDIA card completes OpenCL workloads in roughly three-quarters of the time the AMD card requires. The Vulkan gap is nearly as wide: 194041 versus 148865, a 30.3% difference.

These results align with the cards' compute specifications. The RTX 5000 Ada has 12800 shading units, 400 TMUs, and 176 ROPs, while the W6900X has 5120 shading units, 320 TMUs, and 128 ROPs. The NVIDIA card's 65.28 TFLOPS FP32 throughput versus 22.23 TFLOPS explains why it crushes the AMD card in these general-purpose compute APIs.

The W6900X does not go unanswered. In Geekbench Metal, it posts 226821, which is higher than either of the NVIDIA card's scores in OpenCL or Vulkan. This suggests the AMD card is well-optimized for Apple's Metal API, likely because it was designed for the Radeon Pro Mac lineup. There is no direct NVIDIA comparison in Metal since the RTX 5000 Ada has no Metal benchmark listed.

Specification Differences

The two cards share several core specs: both have 32 GB of GDDR6 memory on a 256-bit bus, both support DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and both measure 267 mm in length. Beyond that, the differences are significant.

The RTX 5000 Ada uses a 5 nm process with 76,300 million transistors on a 609 mm² die. The W6900X uses a 7 nm process with 26,800 million transistors on a 520 mm² die. The NVIDIA card's transistor density is 125.3M per mm² versus 51.5M per mm² for AMD. Clocks differ: the RTX 5000 Ada has a 1155 MHz base and 2550 MHz boost, while the W6900X runs at 1825 MHz base and 2171 MHz boost. The AMD card has a higher base clock but lower boost clock.

Memory speed favors NVIDIA: 2250 MHz with 18 Gbps effective bandwidth versus 2000 MHz with 16 Gbps effective. This yields 576.0 GB/s bandwidth for the RTX 5000 Ada versus 512.0 GB/s for the W6900X. Power delivery also differs — the NVIDIA card uses a 250 W TDP with a 1x 16-pin connector and 600 W suggested PSU, while the AMD card has a 300 W TDP with a 700 W suggested PSU.

Physical and interface specs diverge sharply. The RTX 5000 Ada is dual-slot with PCIe 4.0 x16 and four DisplayPort 1.4a outputs. The W6900X uses the Apple MPX bus interface with one HDMI 2.1 and four Thunderbolt outputs. The NVIDIA card is 112 mm tall; the AMD card is 120 mm tall.

Architecture Differences

The RTX 5000 Ada is built on NVIDIA's Ada Lovelace architecture with the AD102 chip, fabricated by TSMC on a 5 nm node. It includes 100 ray tracing cores and 400 tensor cores, which support the card's FP16 throughput at a 1:1 ratio with FP32 — both rated at 65.28 TFLOPS. The card is part of the Workstation Ada generation and follows Workstation Ampere, with a successor in Blackwell PRO W.

The W6900X uses AMD's RDNA 2.0 architecture with the Navi 21 chip, also from TSMC but on a 7 nm node. It has 80 ray tracing cores and no tensor cores. Its FP16 performance is 44.46 TFLOPS at a 2:1 ratio with FP32, meaning the card can do half-precision work at twice the rate of full precision. This is a different design philosophy — AMD doubles up on FP16 operations while NVIDIA maintains a 1:1 ratio with higher absolute throughput.

The transistor counts highlight the architectural gap: 76,300 million for NVIDIA versus 26,800 million for AMD. The RTX 5000 Ada also has 400 TMUs and 176 ROPs compared to 320 TMUs and 128 ROPs for the W6900X. The NVIDIA card's larger shading unit count (12800 versus 5120) and higher boost clock (2550 MHz versus 2171 MHz) compound the raw compute advantage.

The W6900X is from the Radeon Pro Mac (Navi II Series) generation, released on 2023-08-08 for NVIDIA and 2021-08-02 for AMD. The NVIDIA card is active in production; the AMD card is end-of-life. The AMD card's launch MSRP was 5,999 USD.

Where Each One Wins

NVIDIA RTX 5000 Ada Generation wins on: OpenCL performance with a 34.8% lead, Vulkan performance with a 30.3% lead, raw FP32 compute at 65.28 TFLOPS versus 22.23 TFLOPS, memory bandwidth at 576.0 GB/s versus 512.0 GB/s, pixel fill rate at 448.8 GPixel/s versus 277.9 GPixel/s, texture fill rate at 1,020.0 GTexel/s versus 694.7 GTexel/s, and power efficiency with a 250 W TDP versus 300 W. It also has a higher average benchmark score (184664 vs 168574) and a 98th percentile ranking versus 97th. The card's active production status and PCIe 4.0 x16 interface make it a straightforward choice for standard PC workstations.

AMD Radeon Pro W6900X wins on: Metal performance with a score of 226821 — the only benchmark where it leads. It also has a higher base clock at 1825 MHz versus 1155 MHz, though its boost clock is lower. The card's Apple MPX interface and Thunderbolt outputs make it the only option for Mac Pro systems that require this form factor. Its 300 W TDP is higher, but that is the cost of the MPX design. The W6900X also has a longer track record with an earlier release date of 2021-08-02, though it is now end-of-life.

For a PC builder, the RTX 5000 Ada is the data-driven pick. For a Mac user, the W6900X is the only one of these two that physically works, and its Metal score shows it performs well in that environment.