AMD Radeon Pro W6900X vs AMD Radeon PRO W7600 Comparison

The Verdict

The benchmark database presents a clear performance hierarchy between these two AMD workstation cards. The AMD Radeon Pro W6900X leads by a substantial margin in every recorded test, with an average benchmark score of 168574 compared to 87108 for the AMD Radeon PRO W7600. The W6900X sits at the 97th percentile of all GPUs, while the W7600 ranks at the 93rd percentile, showing that both are high-end parts, but the gap between them is significant.

The W6900X is the appropriate choice for compute-heavy professional workloads that demand maximum throughput. Its nearest rivals in the database include the NVIDIA RTX 4500 Ada Generation with an average score of 166094 (1.5% behind), the NVIDIA RTX A5500 at 165217 (2% behind), and the AMD Radeon PRO W7800 at 164894 (2.2% behind). This places the W6900X at the top of a tightly clustered group of very capable workstation accelerators. The data shows this card was built to handle the most demanding rendering and simulation tasks without compromise.

The W7600, by contrast, is positioned for professionals who need a modern RDNA 3.0 architecture with a lower power envelope. Its nearest rivals include the NVIDIA Quadro GP100 at 87445 (0.4% ahead), the NVIDIA CMP 40HX at 85637 (1.7% behind), and the NVIDIA RTX A4500 Mobile at 91134 (4.4% ahead of the W7600). The W7600 is competitive with these cards, but it does not challenge the W6900X tier of performance.

The architectural split is stark. The W6900X is an end-of-life product from the RDNA 2.0 generation, released in 2021, while the W7600 is an active product built on RDNA 3.0, released in 2023. The newer card uses a smaller and denser process node, but the older card compensates with far more hardware resources. The database shows that for raw benchmark scores, the W6900X wins decisively. For professionals who prioritize the newest architecture and a much lower system power requirement, the W7600 has its place.

Architecture Differences

The two cards represent two successive RDNA generations from AMD. The W6900X uses the Navi 21 chip on the RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. The W7600 uses the Navi 33 chip, codenamed Hotpink Bonefish, on the RDNA 3.0 architecture, fabricated on a 6 nm process at the same foundry. The process shrink from 7 nm to 6 nm is accompanied by a transistor density increase from 51.5 million transistors per square millimeter to 65.2 million per square millimeter.

The W6900X packs 26,800 million transistors on a 520 mm² die, while the W7600 contains 13,300 million transistors on a 204 mm² die. The transistor density advantage of the newer node is clear, but the older card simply has more silicon to work with. The die size difference is substantial, and it directly translates into a large gap in raw compute resources.

Shader hardware follows the same pattern. The W6900X has 5120 shading units, 320 texture mapping units, and 128 render output units. The W7600 has 2048 shading units, 128 texture mapping units, and 64 render output units. Ray tracing hardware also favors the older card: 80 RT cores versus 32. Neither card includes tensor cores.

Memory configuration diverges sharply. The W6900X offers 32 GB of GDDR6 memory on a 256-bit bus, delivering 512.0 GB/s of bandwidth with memory clocked at 2000 MHz (16 Gbps effective). The W7600 offers 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s with memory clocked at 2250 MHz (18 Gbps effective). The W6900X has four times the capacity and nearly double the bandwidth.

Clock behavior differs by design. The W6900X has a base clock of 1825 MHz and a boost clock of 2171 MHz. The W7600 has a lower base clock of 1720 MHz but a higher boost clock of 2440 MHz. The newer architecture reaches higher peak clocks, but the older card maintains higher base performance across its larger chip.

The W6900X is built for the Apple MPX bus interface, which limits its deployment to Apple Mac systems. The W7600 uses PCIe 4.0 x8, making it a more conventional workstation card. Display outputs differ as well: the W6900X provides 1x HDMI 2.1 and 4x Thunderbolt, while the W7600 provides 4x DisplayPort 2.1. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Power requirements are dramatically different. The W6900X has a TDP of 300 W and a suggested PSU of 700 W. The W7600 has a TDP of 130 W and a suggested PSU of 300 W. The W7600 is a single-slot card with a single 6-pin power connector, while the W6900X does not list a slot width or power connector specification in the database.

Where Each One Wins

The W6900X wins every benchmark category recorded in the database. In OpenCL, it scores 130035 against 81528 for the W7600, a 59.5% advantage. In Vulkan, the W6900X scores 148865 against 92688, a 60.6% advantage. The database records no test where the W7600 outperforms the W6900X.

The W6900X is the clear choice for workloads that stress raw compute throughput. Its FP32 performance of 22.23 TFLOPS exceeds the 19.99 TFLOPS of the W7600, and its FP16 performance of 44.46 TFLOPS (2:1) exceeds the 39.98 TFLOPS (2:1) of the newer card. Pixel rate and texture rate also favor the older card: 277.9 GPixel/s versus 156.2 GPixel/s, and 694.7 GTexel/s versus 312.3 GTexel/s. These metrics indicate that the W6900X is better suited for high-resolution rendering, heavy texture sampling, and compute-intensive simulations.

The memory advantage of the W6900X is decisive for large datasets. With 32 GB of VRAM and 512.0 GB/s of bandwidth, it can hold vastly larger scenes, models, or simulation grids than the 8 GB W7600. The W7600's 288.0 GB/s bandwidth is adequate for many tasks, but the database shows it operates in a different performance class.

The W7600 wins in efficiency and deployment flexibility. Its 130 W TDP requires only a 300 W PSU, and its single-slot design with a single 6-pin connector makes it easy to install in conventional workstations. The W6900X requires a 700 W PSU and depends on the Apple MPX bus, which restricts it to Apple systems. The W7600 is also an active product with a 2023 release date, while the W6900X is end-of-life.

For professionals working within the Apple ecosystem, the W6900X is the only option of the two, given its MPX interface. For professionals on standard PC platforms, the W7600 is the more practical choice despite its lower performance. The data shows that the W6900X is the performance leader, while the W7600 is the architectural and power-efficiency leader.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro W6900X has an average benchmark score of 168574, while the AMD Radeon PRO W7600 has an average score of 87108.

Q: How large is the performance gap in OpenCL?

A: The W6900X scores 130035 in OpenCL compared to 81528 for the W7600, a 59.5% difference.

Q: Does the newer architecture make the W7600 faster?

A: No. Despite being built on RDNA 3.0 with a 6 nm process, the W7600 scores lower than the RDNA 2.0 W6900X in every recorded benchmark. The W6900X leads by 60.6% in Vulkan and 59.5% in OpenCL.

Q: How do the memory configurations compare?

A: The W6900X has 32 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The W7600 has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth.

Q: Which card has higher power requirements?

A: The W6900X has a TDP of 300 W and a suggested PSU of 700 W. The W7600 has a TDP of 130 W and a suggested PSU of 300 W.

Q: Are these cards compatible with the same systems?

A: No. The W6900X uses the Apple MPX bus interface and outputs 1x HDMI 2.1 and 4x Thunderbolt. The W7600 uses PCIe 4.0 x8 and outputs 4x DisplayPort 2.1.

Head-to-Head Benchmarks

The database records two direct benchmark comparisons between these cards. Both are decisive wins for the AMD Radeon Pro W6900X.

In the OpenCL test, the W6900X scores 130035, while the W7600 scores 81528. The delta of 59.5% places the newer card at roughly 63% of the older card's score. This is a substantial gap that reflects the difference in shading units, memory bandwidth, and overall compute resources. The W6900X has 5120 shading units versus 2048, and its 512.0 GB/s memory bandwidth is nearly double the W7600's 288.0 GB/s. OpenCL workloads that scale with these resources will see a correspondingly large performance difference.

The Vulkan test shows an even larger relative gap. The W6900X scores 148865, while the W7600 scores 92688, a 60.6% difference. The W6900X's Vulkan score is notably higher than its OpenCL score, while the W7600's Vulkan score is also higher than its OpenCL score but by a smaller margin. The W6900X appears to extract more performance from the Vulkan API, possibly due to its larger hardware resource pool.

Context from the nearest rivals helps interpret these scores. The W6900X's average score of 168574 places it 1.5% ahead of the NVIDIA RTX 4500 Ada Generation and 2% ahead of the NVIDIA RTX A5500. It also leads the AMD Radeon PRO W7800 by 2.2% and the NVIDIA A100 PCIe 40 GB by 3.7%. These are close margins, indicating that the W6900X competes at the top of the workstation GPU hierarchy.

The W7600's average score of 87108 places it in a different competitive tier. The NVIDIA Quadro GP100 is 0.4% ahead with a score of 87445, and the NVIDIA RTX A4500 Mobile is 4.4% ahead at 91134. The NVIDIA CMP 40HX trails by 1.7% at 85637, and the NVIDIA RTX A4500 leads by 5% at 91671. The W7600 is competitive within its tier, but that tier is far below the W6900X.

The FP32 compute figures corroborate the benchmark results. The W6900X delivers 22.23 TFLOPS of FP32 performance, while the W7600 delivers 19.99 TFLOPS. The difference is only about 11%, which is smaller than the benchmark gap suggests. This indicates that memory bandwidth and capacity play a significant role in the observed benchmark differences. The W6900X's 512.0 GB/s bandwidth versus 288.0 GB/s is likely a major factor in its 59.5% to 60.6% benchmark leads.

Pixel and texture rates tell a similar story. The W6900X achieves 277.9 GPixel/s and 694.7 GTexel/s, while the W7600 achieves 156.2 GPixel/s and 312.3 GTexel/s. The W6900X more than doubles the texture rate of the W7600, which explains its dominance in fill-rate-bound workloads.

The production status of each card matters for long-term planning. The W6900X is end-of-life, while the W7600 is active. The W6900X launched in 2021 with a launch MSRP of 5,999 USD. The W7600 launched in 2023 with a launch MSRP of 599 USD. The database records no successor for either card, and the W7600 lists the Radeon Pro Vega as its predecessor.

In summary, the head-to-head data shows a two-to-nothing win record for the W6900X. The performance gap is consistent across both API tests, and the underlying hardware specifications support the benchmark outcomes. The W7600 is a modern, efficient card that performs well within its class, but it does not close the gap to the W6900X in any recorded metric.