AMD Radeon Pro W6800X Duo vs NVIDIA RTX A3000 Mobile Comparison

Head-to-Head Benchmarks

The benchmark database records two shared tests between the AMD Radeon Pro W6800X Duo and the NVIDIA RTX A3000 Mobile. In both, the AMD part takes a commanding lead. The largest gap appears in Geekbench Vulkan, where the W6800X Duo scores 125,622 against the RTX A3000 Mobile's 61,189. That is a 105.3% advantage, meaning the AMD card more than doubles the NVIDIA mobile GPU's output in this API workload. The margin is so wide that the RTX A3000 Mobile would need to nearly double its score to match, a gap that no driver update or thermal headroom could plausibly close.

The second shared test, Geekbench OpenCL, shows a smaller but still decisive difference. The W6800X Duo records 124,335 points, while the RTX A3000 Mobile trails at 79,091. That works out to a 57.2% lead for the AMD card. Notably, the W6800X Duo's OpenCL result is only slightly below its Vulkan result (124,335 versus 125,622), indicating consistent performance across both compute APIs. The RTX A3000 Mobile, by contrast, shows a much larger API sensitivity: its Vulkan score of 61,189 is roughly 22.6% lower than its OpenCL score, suggesting that the mobile GPU does not scale as well when moving to Vulkan compute workloads.

Looking at overall averages, the W6800X Duo sits at 135,774 across all recorded benchmarks, while the RTX A3000 Mobile averages 70,140. The AMD card's average is 93.5% higher than the NVIDIA part's. The percentile data reinforces the hierarchy: the W6800X Duo ranks in the 96th percentile among all GPUs in the database, whereas the RTX A3000 Mobile sits in the 91st percentile. Both are high performers in absolute terms, but the gap between the 96th and 91st percentile is substantial, reflecting the W6800X Duo's placement near the very top of the database.

Rival comparisons add context. The W6800X Duo's nearest rival, the AMD Radeon PRO W6800, averages 135,396, just 0.3% behind. The NVIDIA A10M and RTX 4000 Ada Generation are similarly close, at 135,230 and 135,218 respectively, both trailing by 0.4%. The AMD Radeon PRO V620 actually scores slightly higher at 136,472, putting it 0.5% ahead of the W6800X Duo. In other words, the W6800X Duo is essentially tied with a cluster of top-tier workstation GPUs, all within a fraction of a percent of each other. The RTX A3000 Mobile, by contrast, is closest to the NVIDIA Quadro P6000 (69,986, 0.2% behind), the AMD Radeon Pro WX 8200 (69,870, 0.4% behind), and the NVIDIA CMP 90HX (69,000, 1.7% behind). The AMD Radeon RX 6600 LE edges ahead of it by 1% with 70,829 points. This places the RTX A3000 Mobile in a performance tier roughly half a step below the W6800X Duo's peer group.

Where Each One Wins

The W6800X Duo wins both head-to-head tests, so the use-case split is straightforward: any workload that relies on OpenCL or Vulkan compute will favor the AMD card substantially. The 105.3% Vulkan lead means applications built around Vulkan compute, such as certain rendering engines and scientific visualization tools, will see more than double the throughput on the W6800X Duo. The 57.2% OpenCL lead is similarly decisive for OpenCL-based rendering, simulation, or machine learning inference tasks.

The RTX A3000 Mobile does not win any recorded benchmark against the W6800X Duo. Its strengths lie elsewhere, in the mobile form factor. The card consumes only 70 W of power, compared to the W6800X Duo's 400 W, and it requires no external power connectors. It is designed to fit into portable workstations, where the W6800X Duo, with its quad-slot footprint and Apple MPX bus interface, cannot operate at all. The RTX A3000 Mobile also brings 128 tensor cores, a feature the AMD card lacks entirely, which makes it relevant for workloads that use NVIDIA's tensor core acceleration, though no benchmark in the database directly measures that capability.

For raw compute throughput in a desktop or Mac Pro chassis, the W6800X Duo is the clear choice. For mobile workstations where power draw and physical size are the limiting factors, the RTX A3000 Mobile is the only option between these two, even if its compute scores are far lower. The data also shows that the RTX A3000 Mobile's 91st percentile ranking means it still outperforms the vast majority of GPUs in the database, so it is not a weak part in absolute terms, it is simply outclassed by a dual-chip, 400 W desktop monster.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro W6800X Duo averages 135,774 across all recorded benchmarks, while the NVIDIA RTX A3000 Mobile averages 70,140. That is a 93.5% gap in favor of the AMD card.

Q: How large is the Vulkan performance difference?

A: In Geekbench Vulkan, the W6800X Duo scores 125,622 versus 61,189 for the RTX A3000 Mobile, a 105.3% advantage for the AMD card.

Q: Does the RTX A3000 Mobile win any benchmark in the head-to-head data?

A: No. The database records two shared tests, Geekbench OpenCL and Geekbench Vulkan, and the W6800X Duo wins both. The win count is 2 for AMD and 0 for NVIDIA.

Q: How does the RTX A3000 Mobile compare to its own nearest rivals?

A: The RTX A3000 Mobile's closest rival is the NVIDIA Quadro P6000 at 69,986, which is 0.2% behind. The AMD Radeon Pro WX 8200 trails by 0.4%, and the NVIDIA CMP 90HX trails by 1.7%. The AMD Radeon RX 6600 LE leads it by 1% with 70,829 points.

Q: What is the W6800X Duo's closest competitor in the database?

A: The AMD Radeon PRO V620 averages 136,472, which is 0.5% ahead of the W6800X Duo. The AMD Radeon PRO W6800 is 0.3% behind, and the NVIDIA A10M and RTX 4000 Ada Generation are both 0.4% behind.

Q: Do both GPUs support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Specification Differences

The two GPUs differ in nearly every major specification category. The W6800X Duo uses 32 GB of GDDR6 memory on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The RTX A3000 Mobile has 6 GB of GDDR6 on a 192-bit bus, with 264.0 GB/s of bandwidth. That means the AMD card has over 5 times the memory capacity and nearly double the memory bandwidth.

Clock speeds also diverge sharply. The W6800X Duo runs at a base clock of 1800 MHz and boosts to 1967 MHz, with memory clocked at 2000 MHz (16 Gbps effective). The RTX A3000 Mobile has a base clock of just 600 MHz and a boost of 1230 MHz, with memory at 1375 MHz (11 Gbps effective). The AMD card's boost clock is 59.9% higher than the NVIDIA card's.

Compute resources show a mixed picture. The W6800X Duo has 3840 shading units, 240 texture mapping units, and 96 ROPs. The RTX A3000 Mobile has more shading units at 4096, but far fewer TMUs at 128 and ROPs at 64. The AMD card has 60 ray tracing cores, while the NVIDIA card has 32. The NVIDIA card has 128 tensor cores; the AMD card has none listed.

Pixel and texture rates follow the hardware counts. The W6800X Duo reaches 188.8 GPixel/s and 472.1 GTexel/s, while the RTX A3000 Mobile manages 78.72 GPixel/s and 157.4 GTexel/s. Floating point performance shows the W6800X Duo at 15.11 TFLOPS FP32 and 30.21 TFLOPS FP16 (2:1 ratio), versus 10.08 TFLOPS for both FP32 and FP16 (1:1 ratio) on the RTX A3000 Mobile.

Power and physical specifications are where the cards diverge most for practical use. The W6800X Duo has a 400 W TDP, is quad-slot, measures 267 mm in length and 120 mm in height, and uses an Apple MPX bus interface. It requires an 800 W suggested PSU. The RTX A3000 Mobile has a 70 W TDP, no power connectors, no measured dimensions listed, and uses a PCIe 4.0 x16 interface. Display outputs also differ: the W6800X Duo offers 1x HDMI 2.1 and 4x Thunderbolt, while the RTX A3000 Mobile's outputs are listed as "Portable Device Dependent."

Architecture Differences

The architectural gap is fundamental. The W6800X Duo is built on AMD's RDNA 2.0 architecture, using the Navi 21 chip, fabricated on TSMC's 7 nm process. It contains 26,800 million transistors on a 520 mm² die, giving a transistor density of 51.5 million per square millimeter. The RTX A3000 Mobile uses NVIDIA's Ampere architecture with the GA104 chip, fabricated on Samsung's 8 nm process. It contains 17,400 million transistors on a 392 mm² die, for a density of 44.4 million per square millimeter.

The process node difference is significant. TSMC's 7 nm node allows the W6800X Duo to pack more transistors per area (51.5M / mm² versus 44.4M / mm²) despite using a larger die. The W6800X Duo also has a transistor count advantage of 9,400 million over the RTX A3000 Mobile, a 54% difference in raw transistor count.

Memory architecture differs as well, not just in capacity but in the effective data rate. The W6800X Duo's memory runs at 16 Gbps effective, while the RTX A3000 Mobile's runs at 11 Gbps effective, a 45.5% higher data rate for the AMD card. The AMD card's 256-bit bus versus the NVIDIA card's 192-bit bus further widens the bandwidth gap.

Feature sets diverge on tensor cores. The RTX A3000 Mobile includes 128 tensor cores, which are absent from the W6800X Duo's specification list. The AMD card compensates with more ray tracing cores (60 versus 32). The FP16 throughput ratio also reveals a design difference: the W6800X Duo achieves 30.21 TFLOPS FP16 by using a 2:1 ratio relative to FP32, while the RTX A3000 Mobile delivers 10.08 TFLOPS FP16 at a 1:1 ratio, meaning it does not gain extra throughput for half-precision work.

Generation and release timing differ. The W6800X Duo belongs to the Radeon Pro Mac (Navi II Series) generation and was released on 2021-08-02. The RTX A3000 Mobile belongs to the Ampere-MW (Ax000) generation and was released earlier, on 2021-04-11. The NVIDIA card has a listed predecessor, Quadro Turing-M, and successor, Ada-MW, while the AMD card lists neither. Both are marked as end-of-life products in the database.