AMD Radeon PRO W6800 vs NVIDIA RTX 6000 Ada Generation Comparison

The NVIDIA RTX 6000 Ada Generation and AMD Radeon PRO W6800 are both end-of-life workstation cards, but they target different tiers of the market. The data shows the RTX 6000 Ada is in a completely different performance class, sitting at the 99th percentile of all GPUs with an average benchmark score of 287,237, while the W6800 holds the 96th percentile with an average score of 135,396. This is not a close contest; the RTX 6000 Ada leads by 155.8% in OpenCL and 139% in Vulkan. The verdict is straightforward: the RTX 6000 Ada is for professionals running the heaviest compute and rendering workloads, while the W6800 is a competent but far less powerful option for lighter tasks or those needing more display outputs. If your priority is raw compute performance, the choice is clear from the benchmark data.

The Verdict

Pick the NVIDIA RTX 6000 Ada Generation if your work is dominated by compute-heavy applications. Its average benchmark score of 287,237 places it 112% above the W6800’s 135,396 average. The RTX 6000 Ada also sits near the top of the entire GPU hierarchy, with its nearest rival being the NVIDIA L40S at 295,763 (2.9% higher) and the AMD Instinct MI300X at 317,994 (9.7% higher). It is decisively ahead of the NVIDIA L40 (284,111) by 1.1% and the NVIDIA L20 (251,147) by 14.4%. This card is designed for the top end of workstation performance, and the numbers confirm it.

Pick the AMD Radeon PRO W6800 only if your budget constraints and workload demands align with a mid-range card. Its average score of 135,396 is essentially tied with its closest rivals: the NVIDIA A10M (135,230, 0.1% higher), the NVIDIA RTX 4000 Ada Generation (135,218, 0.1% higher), and the AMD Radeon Pro W6800X Duo (135,774, 0.3% lower). The W6800 is a solid performer in its own tier, but the data shows it is not in the same league as the RTX 6000 Ada. For anyone needing the maximum compute throughput, the W6800 will be a bottleneck.

Where Each One Wins

The RTX 6000 Ada Generation wins every benchmark category where both cards have data. In the Geekbench OpenCL test, it scores 311,629 versus the W6800’s 121,808, a 155.8% advantage. In the Geekbench Vulkan test, it scores 262,845 versus 109,961, a 139% lead. This means the NVIDIA card is the clear choice for general-purpose GPU compute (OpenCL) and cross-platform graphics APIs (Vulkan). The W6800 has no benchmark wins in the head-to-head data; its only additional benchmark is a Geekbench Metal score of 174,420, which has no direct comparison but suggests it may have a niche in Apple-centric Metal workloads.

The W6800 does have one practical advantage: display outputs. It offers 6x mini-DisplayPort 1.4a, versus the RTX 6000 Ada’s 4x DisplayPort 1.4a. For multi-monitor setups or driving many displays simultaneously, the W6800 is the better fit. However, this is a feature advantage, not a performance one. The RTX 6000 Ada also has a higher memory bandwidth at 960.0 GB/s versus 512.0 GB/s, which contributes to its massive performance lead. In every measurable performance metric, the NVIDIA card wins decisively.

Architecture Differences

The two cards are built on fundamentally different architectures and process nodes. The NVIDIA RTX 6000 Ada uses the AD102 chip on the Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. It packs 76,300 million transistors on a 609 mm² die, yielding a transistor density of 125.3M per mm². The AMD Radeon PRO W6800 uses the Navi 21 chip on the RDNA 2.0 architecture, fabricated on a 7 nm process, also at TSMC. It contains 26,800 million transistors on a 520 mm² die, with a much lower density of 51.5M per mm². This process and density difference is a key reason for the NVIDIA card’s superiority.

The compute resources are starkly different. The RTX 6000 Ada has 18,176 shading units, 568 texture mapping units, and 192 raster operation pipelines. It also features 142 ray tracing cores and 568 tensor cores. In contrast, the W6800 has 3,840 shading units, 240 TMUs, and 96 ROPs. It has 60 ray tracing cores and no tensor cores at all. This explains the FP32 performance: the RTX 6000 Ada delivers 91.06 TFLOPS, while the W6800 delivers 17.83 TFLOPS. The NVIDIA card also offers FP16 at a 1:1 ratio (91.06 TFLOPS), while the AMD card’s FP16 is 2:1 (35.67 TFLOPS), meaning the NVIDIA card has a 2.55x advantage in FP16 as well.

Memory configurations also diverge. The RTX 6000 Ada has 48 GB of GDDR6 on a 384-bit bus, with 960.0 GB/s bandwidth. The W6800 has 32 GB of GDDR6 on a 256-bit bus, with 512.0 GB/s bandwidth. The NVIDIA card has 50% more memory capacity and 87.5% more bandwidth. Both support PCIe 4.0 x16 and have identical API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4). The RTX 6000 Ada has a higher TDP of 300 W versus 250 W, and uses a single 16-pin connector, while the W6800 uses a 6-pin plus 8-pin combination.

FAQ

Q: Which card is faster in OpenCL?

A: The NVIDIA RTX 6000 Ada Generation is significantly faster, scoring 311,629 versus the AMD Radeon PRO W6800’s 121,808 in the Geekbench OpenCL test. This represents a 155.8% performance lead.

Q: Does the AMD card win any benchmark?

A: No. In the head-to-head benchmarks available (Geekbench OpenCL and Geekbench Vulkan), the AMD Radeon PRO W6800 loses both. The only benchmark unique to it is Geekbench Metal, where it scored 174,420, but there is no comparable score for the NVIDIA card.

Q: How do these cards compare to their nearest rivals?

A: The RTX 6000 Ada (avg score 287,237) is 1.1% faster than the NVIDIA L40 (284,111) and 2.9% slower than the NVIDIA L40S (295,763). The W6800 (avg 135,396) is essentially tied with the NVIDIA A10M (135,230) and RTX 4000 Ada (135,218), and is 0.3% slower than the Radeon Pro W6800X Duo (135,774).

Q: Which card has more memory and bandwidth?

A: The RTX 6000 Ada has 48 GB of GDDR6 with 960.0 GB/s bandwidth on a 384-bit bus. The W6800 has 32 GB of GDDR6 with 512.0 GB/s bandwidth on a 256-bit bus. The NVIDIA card offers 50% more capacity and 87.5% more bandwidth.

Q: Are there differences in display output capability?

A: Yes. The AMD Radeon PRO W6800 has 6x mini-DisplayPort 1.4a outputs, while the NVIDIA RTX 6000 Ada has 4x DisplayPort 1.4a outputs. The AMD card supports two more simultaneous displays.

Q: What are the power requirements?

A: The RTX 6000 Ada has a TDP of 300 W and requires a 700 W power supply, using a single 16-pin connector. The W6800 has a TDP of 250 W and requires a 600 W power supply, using a 6-pin plus 8-pin connector setup.

Head-to-Head Benchmarks

The most decisive metric is Geekbench OpenCL, where the RTX 6000 Ada scores 311,629 against the W6800’s 121,808. The 155.8% delta is enormous; it means the NVIDIA card processes over 2.5 times more work in the same timeframe. This is not a marginal improvement but a generational leap. In practical terms, any OpenCL-based renderer, simulator, or compute kernel will finish far sooner on the RTX 6000 Ada. The W6800’s score of 121,808 is actually closer to the RTX 6000 Ada’s nearest rival, the NVIDIA L20 (251,147), than to the 6000 Ada itself.

The Vulkan test shows a similar pattern. The RTX 6000 Ada scores 262,845, while the W6800 scores 109,961, a 139% difference. This confirms that the performance gap is consistent across different graphics APIs, not an artifact of a single benchmark. Vulkan is often used in professional visualization and game-engine workloads, so this lead matters for real-time viewport performance. The W6800’s Vulkan score of 109,961 is less than half of the RTX 6000 Ada’s, and even the W6800’s average score across all benchmarks (135,396) is below the RTX 6000 Ada’s worst single benchmark result (262,845 in Vulkan).

Looking at the broader context, the RTX 6000 Ada’s average score of 287,237 places it in the 99th percentile of all GPUs. Its nearest rivals are all high-end data center or workstation parts: the L40S, MI300X, L40, and L20. This is a card that competes at the absolute top tier. The W6800’s average of 135,396 places it in the 96th percentile, but its rivals are mid-range parts like the A10M and RTX 4000 Ada. The performance gap between the two cards is larger than the gap between the W6800 and many lower-tier GPUs. In every head-to-head test, the RTX 6000 Ada wins by a wide margin, and there is no benchmark data suggesting the W6800 can close that gap.

Specification Differences

The two cards differ in nearly every core specification. The process node is a major divider: the RTX 6000 Ada uses a 5 nm process, while the W6800 uses 7 nm. This leads to a transistor count of 76,300 million versus 26,800 million, and a die size of 609 mm² versus 520 mm². The transistor density is 125.3M per mm² for NVIDIA versus 51.5M per mm² for AMD. Clock speeds also differ: the RTX 6000 Ada has a base clock of 915 MHz and a boost of 2505 MHz, while the W6800 has a base of 1575 MHz and a boost of 2322 MHz. Despite the lower base clock, the NVIDIA card’s massive core count makes it far faster.

Memory is another clear differentiator. The RTX 6000 Ada has 48 GB of GDDR6 on a 384-bit bus with a memory clock of 2500 MHz (20 Gbps effective) and bandwidth of 960.0 GB/s. The W6800 has 32 GB of GDDR6 on a 256-bit bus with a memory clock of 2000 MHz (16 Gbps effective) and bandwidth of 512.0 GB/s. The shading units are 18,176 versus 3,840, TMUs are 568 versus 240, and ROPs are 192 versus 96. Ray tracing cores are 142 versus 60, and the NVIDIA card has 568 tensor cores while the AMD has none. Pixel rate is 481.0 GPixel/s versus 222.9 GPixel/s, and texture rate is 1,422.8 GTexel/s versus 557.3 GTexel/s.

Physical and power characteristics also differ. The RTX 6000 Ada has a TDP of 300 W and uses a single 16-pin power connector, with a suggested PSU of 700 W. The W6800 has a TDP of 250 W and uses a 6-pin plus 8-pin connector, with a suggested PSU of 600 W. Both are dual-slot cards with a length of 267 mm (10.5 inches), but the W6800 is taller (120 mm versus 112 mm) and has a defined width of 50 mm (2 inches) while the NVIDIA card’s width is not specified. The display outputs differ, with the W6800 offering 6x mini-DisplayPort 1.4a versus the RTX 6000 Ada’s 4x DisplayPort 1.4a. The RTX 6000 Ada was released later (December 2022 versus June 2021) and has a successor (Blackwell PRO W), while the W6800’s successor is not listed.