AMD Radeon Pro W6900X vs AMD Radeon PRO W7700 Comparison

AMD Radeon Pro W6900X vs AMD Radeon PRO W7700 pits two generations of AMD workstation graphics against each other, with the older flagship retaining a decisive edge in raw compute benchmarks despite the newer card’s architectural overhaul. The data shows the W6900X wins both head-to-head tests, but the W7700 counters with superior efficiency, newer process technology, and a dramatically lower launch MSRP, making the choice between them a matter of workload priorities rather than outright superiority.

Head-to-Head Benchmarks

The benchmark results are unambiguous: the AMD Radeon Pro W6900X outperforms the AMD Radeon PRO W7700 in every shared test. In Geekbench OpenCL, the W6900X scores 130,035 against the W7700’s 108,245, a 20.1% advantage that represents the largest gap between the two cards. This is a substantial margin in compute-heavy workloads, indicating the older card’s higher shading unit count—5,120 versus 3,072—delivers tangible benefits in OpenCL-accelerated tasks like rendering and simulation.

The Vulkan results tell a similar story, though with a narrower margin. The W6900X posts 148,865, while the W7700 manages 129,706, giving the former a 14.8% lead. Vulkan’s lower-level API often scales better with raw hardware resources, and here the W6900X’s 80 ray tracing cores and 128 ROPs provide the foundation for its win. Notably, the W6900X’s Vulkan score is also higher than its OpenCL result, while the W7700 shows the opposite trend—its Vulkan score exceeds its OpenCL score by 19.8%, suggesting the newer architecture handles modern graphics APIs more efficiently relative to its compute peak.

Looking at broader context, the W6900X’s average benchmark score of 168,574 places it at the 97th percentile of all GPUs, while the W7700’s 118,976 average sits at the 95th percentile. The delta between their averages is 41.7%, which is larger than the head-to-head deltas because the W6900X has an additional Geekbench Metal score of 226,821—a test the W7700 lacks entirely. This Metal result, likely reflecting the W6900X’s Apple MPX bus interface and Mac-oriented design, boosts its overall standing significantly.

The W6900X’s nearest rivals in average score include the NVIDIA RTX 4500 Ada Generation (166,094, just 1.5% behind) and the NVIDIA RTX A5500 (165,217, 2% behind), showing it competes at the high end of workstation GPUs. The W7700, by contrast, is bracketed by the NVIDIA GB10 (117,393, 1.3% behind) and the NVIDIA RTX 4000 SFF Ada Generation (117,088, 1.6% behind), placing it in a lower performance tier despite its newer architecture. In head-to-head terms, the W6900X wins 2–0, and no benchmark exists where the W7700 takes the lead.

FAQ

Q: Which card has the higher average benchmark score?

A: The AMD Radeon Pro W6900X, with an average of 168,574 across all tested workloads, compared to the AMD Radeon PRO W7700’s 118,976. This places the W6900X at the 97th percentile of all GPUs, while the W7700 sits at the 95th percentile.

Q: Does the newer card ever beat the older one in any benchmark?

A: No. The data shows the W6900X wins both shared benchmarks—Geekbench OpenCL (130,035 vs 108,245, a 20.1% lead) and Geekbench Vulkan (148,865 vs 129,706, a 14.8% lead). The W7700 has no benchmark victory in the head-to-head results.

Q: How do their nearest rivals compare in average score?

A: The W6900X’s closest rival is the NVIDIA RTX 4500 Ada Generation at 166,094 average, just 1.5% behind. The W7700’s nearest rival is the NVIDIA GB10 at 117,393, only 1.3% behind, showing both cards are tightly matched within their respective performance tiers.

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

A: The W6900X features 32 GB of GDDR6 memory on a 256-bit bus, while the W7700 has 16 GB of GDDR6 on the same 256-bit bus width. Despite half the capacity, the W7700’s memory runs at 18 Gbps effective versus the W6900X’s 16 Gbps, yielding higher bandwidth at 576.0 GB/s versus 512.0 GB/s.

Q: Which card has higher FP32 compute performance?

A: The AMD Radeon PRO W7700, with 31.95 TFLOPS, exceeds the W6900X’s 22.23 TFLOPS by 43.7%. This is notable because the W6900X still wins practical benchmarks, suggesting the W7700’s theoretical compute advantage does not translate to higher real-world test scores.

Q: Are both cards on the same manufacturing process?

A: No. The W6900X uses TSMC’s 7 nm process with a 520 mm² die, while the W7700 uses TSMC’s 5 nm process with a 346 mm² die. The W7700’s process is more advanced, enabling a higher transistor density of 81.2M per mm² versus the W6900X’s 51.5M per mm².

Architecture Differences

The two cards represent distinct generations of AMD’s RDNA architecture. The W6900X is built on RDNA 2.0 with the Navi 21 chip, while the W7700 uses RDNA 3.0 with the Navi 32 chip, codenamed “Wheat Nas.” This generational leap is most evident in the manufacturing process: the W6900X uses TSMC’s 7 nm node with a 520 mm² die, while the W7700 employs the newer 5 nm node with a smaller 346 mm² die. The transistor counts are surprisingly similar—26,800 million for the W6900X versus 28,100 million for the W7700—but the density difference is stark: 51.5M transistors per mm² on the older card versus 81.2M per mm² on the newer one.

Compute resources diverge significantly. The W6900X packs 5,120 shading units, 320 texture mapping units, and 128 ROPs, along with 80 ray tracing cores. The W7700, despite its newer architecture, has fewer of each: 3,072 shading units, 192 TMUs, 96 ROPs, and 48 ray tracing cores. This explains why the W6900X wins in raw benchmark performance—it simply has more silicon dedicated to parallel processing. However, the W7700’s RDNA 3.0 architecture delivers higher clock speeds, with a base clock of 1900 MHz and boost of 2600 MHz, compared to the W6900X’s 1825 MHz base and 2171 MHz boost. The W7700 also achieves higher FP32 throughput at 31.95 TFLOPS versus 22.23 TFLOPS, and FP16 at 63.90 TFLOPS versus 44.46 TFLOPS, suggesting architectural improvements in instruction efficiency.

Memory configurations differ in capacity but not bus width. Both use 256-bit interfaces, but the W6900X offers 32 GB of GDDR6 at 16 Gbps effective, while the W7700 provides 16 GB at 18 Gbps effective. This results in the W7700 having higher bandwidth (576.0 GB/s) despite half the capacity, which may benefit certain bandwidth-sensitive workloads. The W6900X’s larger frame buffer is likely aimed at massive datasets or high-resolution textures, while the W7700’s faster memory compensates for its reduced capacity.

Power and interface differences further separate them. The W6900X draws 300 W TDP with a suggested 700 W PSU, and connects via Apple MPX—a proprietary interface indicating Mac-specific design. The W7700 is more conventional, with a 190 W TDP, a single 8-pin power connector, a suggested 450 W PSU, and standard PCIe 4.0 x16. Display outputs also differ: the W6900X offers 1x HDMI 2.1 and 4x Thunderbolt, while the W7700 provides 4x DisplayPort 2.1. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but the W6900X adds a Geekbench Metal score that the W7700 lacks.

The Verdict

The data supports a clear split: the AMD Radeon Pro W6900X is the performance king, winning both head-to-head benchmarks with leads of 20.1% in OpenCL and 14.8% in Vulkan. Its 32 GB memory capacity and higher shading unit count make it the better choice for compute-heavy workflows that stress parallel processing and large datasets. Buyers in this camp should also note its 97th percentile ranking and average score of 168,574, which places it among top-tier workstation GPUs like the NVIDIA RTX 4500 Ada Generation.

The AMD Radeon PRO W7700, while slower in benchmarks, offers compelling advantages for different users. Its 5 nm process and RDNA 3.0 architecture deliver higher clock speeds and superior FP32 performance (31.95 TFLOPS), despite fewer cores. The 190 W TDP makes it far more power-efficient, and its standard PCIe 4.0 x16 interface and DisplayPort 2.1 outputs suggest broader system compatibility outside Apple ecosystems. Its 95th percentile standing and average score of 118,976, while lower, still places it ahead of the NVIDIA RTX 4000 SFF Ada Generation in the rival list.

Choose the W6900X if raw benchmark scores and 32 GB of memory are paramount, especially in OpenCL or Vulkan compute tasks. Choose the W7700 if you prioritize efficiency, modern connectivity, and a smaller physical footprint, and if its 16 GB capacity suffices for your workloads. The W6900X’s end-of-life production status and Mac-focused bus interface may limit its appeal, while the W7700’s conventional design and lower TDP make it a more practical day-to-day workstation card for general use.

Specification Differences

| Specification | AMD Radeon Pro W6900X | AMD Radeon PRO W7700 |

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

| Architecture | RDNA 2.0 | RDNA 3.0 |

| Process Node | 7 nm | 5 nm |

| Die Size | 520 mm² | 346 mm² |

| Transistor Density | 51.5M / mm² | 81.2M / mm² |

| Base Clock | 1825 MHz | 1900 MHz |

| Boost Clock | 2171 MHz | 2600 MHz |

| Memory Size | 32 GB | 16 GB |

| Memory Bandwidth | 512.0 GB/s | 576.0 GB/s |

| Shading Units | 5120 | 3072 |

| TMUs | 320 | 192 |

| ROPs | 128 | 96 |

| RT Cores | 80 | 48 |

| FP32 Performance | 22.23 TFLOPS | 31.95 TFLOPS |

| TDP | 300 W | 190 W |

| Suggested PSU | 700 W | 450 W |

| Bus Interface | Apple MPX | PCIe 4.0 x16 |

| Display Outputs | 1x HDMI 2.1, 4x Thunderbolt | 4x DisplayPort 2.1 |

| Production Status | End-of-life | Active |

| Launch MSRP | 5,999 USD | 999 USD |