AMD Radeon PRO W6600 vs NVIDIA RTX A3000 Mobile Comparison

# AMD Radeon PRO W6600 vs NVIDIA RTX A3000 Mobile

The AMD Radeon PRO W6600 and NVIDIA RTX A3000 Mobile represent two divergent philosophies in professional graphics, and the benchmark data reveals a fascinating split. In the two shared head-to-head tests, each card claims exactly one victory, but the margins tell very different stories. The NVIDIA RTX A3000 Mobile wins the Geekbench OpenCL test with a score of 79,091 against the AMD’s 73,514, a delta of -7.1% from AMD’s perspective. However, the AMD Radeon PRO W6600 strikes back decisively in Geekbench Vulkan, posting 78,428 against NVIDIA’s 61,189, a commanding 28.2% advantage. This asymmetry—a narrow OpenCL loss but a massive Vulkan win—suggests that API-level optimization plays a pivotal role in how these architectures express their theoretical capabilities.

Head-to-Head Benchmarks

The OpenCL result is the closer contest. NVIDIA’s 79,091 score edges out AMD’s 73,514 by roughly 7.1%, a margin that could be attributed to driver maturity or workload distribution rather than raw hardware superiority. Notably, the RTX A3000 Mobile’s average benchmark score across all tests is 70,140, which sits below its OpenCL result, indicating that its Vulkan performance drags down the overall average. The AMD card, by contrast, achieves an average benchmark score of 81,995, buoyed by strong showings across Metal (94,042), Vulkan (78,428), and OpenCL (73,514). The average scores are telling: AMD leads by 11,855 points, or approximately 16.9%, despite losing the OpenCL head-to-head.

The Vulkan gap is where the AMD card demonstrates its dominance. A 28.2% advantage is not a marginal difference; it represents a fundamental efficiency or driver advantage in this API. The AMD Radeon PRO W6600’s Vulkan score of 78,428 is within 6.1% of its own OpenCL score, showing consistency across APIs. The NVIDIA RTX A3000 Mobile, however, drops from 79,091 in OpenCL to 61,189 in Vulkan—a 22.6% decline within the same GPU. This internal inconsistency suggests that the NVIDIA architecture, while powerful in compute-heavy OpenCL workloads, struggles to translate that power into Vulkan’s rendering-oriented paradigm. The data implies that users heavily invested in Vulkan-based applications would see dramatically better performance on the AMD card, while OpenCL-centric workflows might favor NVIDIA, albeit by a smaller margin.

Where Each One Wins

The AMD Radeon PRO W6600 wins in scenarios that favor Vulkan rendering, given its 28.2% lead in that benchmark. This advantage likely extends to modern game engines, real-time visualization tools, and any professional software that leverages Vulkan for GPU compute or graphics. The card’s Metal score of 94,042—the highest single benchmark in either dataset—further indicates strength in Apple ecosystem compatibility, though the RTX A3000 Mobile has no Metal result for direct comparison. The AMD card’s overall average benchmark score of 81,995 places it in the 92nd percentile of all GPUs, signaling top-tier performance in its class.

The NVIDIA RTX A3000 Mobile wins in OpenCL-heavy workloads, where its 79,091 score outperforms AMD by 7.1%. OpenCL remains prevalent in scientific computing, certain CAD applications, and legacy professional tools. The RTX A3000 Mobile also edges into the 91st percentile of all GPUs, just one point below AMD, indicating that its lower average score (70,140) is more a reflection of Vulkan weakness than overall incompetence. For users whose software stack is OpenCL-exclusive, the NVIDIA card offers a measurable, if modest, performance advantage. However, the RTX A3000 Mobile’s nearest rivals include the NVIDIA Quadro P6000 (69,986, delta 0.2%) and AMD Radeon Pro WX 8200 (69,870, delta 0.4%), showing it barely edges out much older cards. The AMD card’s nearest rivals, by contrast, include the AMD Radeon Pro Vega 64X (80,959, delta 1.3%) and NVIDIA GeForce RTX 5090 (79,842, delta 2.7%), placing it in more rarefied company.

Architecture Differences

The architectural divide is stark. AMD’s Radeon PRO W6600 uses the Navi 23 chip built on RDNA 2.0 architecture, manufactured on TSMC’s 7 nm process. The die measures 237 mm² and contains 11,060 million transistors, yielding a transistor density of 46.7 million per mm². NVIDIA’s RTX A3000 Mobile employs the GA104 chip on Ampere architecture, fabricated by Samsung on an 8 nm process. This die is substantially larger at 392 mm² and packs 17,400 million transistors, though its density is slightly lower at 44.4 million per mm². The larger transistor count on NVIDIA’s side suggests more complex logic, but the smaller AMD die achieves higher density, implying more efficient packing of its 11 billion transistors.

Clock speeds reveal a significant divergence in design philosophy. The AMD card runs at a base clock of 2331 MHz and boosts to 2580 MHz, while the NVIDIA card idles at a 600 MHz base and boosts to only 1230 MHz. Despite NVIDIA having more than double the shading units (4,096 vs. 1,792), its lower clocks result in an FP32 throughput of 10.08 TFLOPS versus AMD’s 9.247 TFLOPS—a narrow 9% advantage for NVIDIA. AMD’s FP16 performance doubles to 18.49 TFLOPS (2:1 ratio), while NVIDIA’s FP16 matches its FP32 at 10.08 TFLOPS (1:1 ratio). This means AMD offers superior half-precision throughput, which could benefit AI inference or graphics workloads that exploit FP16. The RTX A3000 Mobile, however, includes 128 tensor cores and 32 RT cores, versus AMD’s 28 RT cores and no tensor core equivalent. For ray tracing or tensor-based operations, NVIDIA’s dedicated hardware is a clear specification advantage, though no benchmark data directly measures these features.

Specification Differences

Memory configurations diverge on capacity, bandwidth, and bus width. AMD provides 8 GB of GDDR6 on a 128-bit bus, delivering 224.0 GB/s bandwidth. NVIDIA offers only 6 GB of GDDR6 but on a wider 192-bit bus, achieving 264.0 GB/s bandwidth. The NVIDIA card thus has 17.9% more bandwidth but 25% less capacity. For large datasets that exceed 6 GB, the AMD card’s extra memory becomes critical; for bandwidth-bound tasks, NVIDIA has the edge. Memory clocks also differ: AMD runs at 1750 MHz (14 Gbps effective) versus NVIDIA’s 1375 MHz (11 Gbps effective), though the wider bus compensates for NVIDIA’s lower clock speed.

Power and physical characteristics separate these cards fundamentally. The AMD Radeon PRO W6600 is a 100 W single-slot card requiring a 1x 6-pin power connector and a 300 W suggested PSU. It measures 241 mm (9.5 inches) in length. The NVIDIA RTX A3000 Mobile is a 70 W mobile chip with no power connectors and no specified slot width or dimensions, reflecting its laptop-oriented design. The bus interface also differs: AMD uses PCIe 4.0 x8, while NVIDIA uses PCIe 4.0 x16. The wider PCIe link on NVIDIA could reduce data transfer bottlenecks, though the AMD card’s x8 interface is likely sufficient for most workloads. Display outputs further differentiate them: AMD offers 4x DisplayPort 1.4a, while NVIDIA’s outputs are "Portable Device Dependent," meaning they vary by laptop implementation.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon PRO W6600 achieves an average benchmark score of 81,995, compared to the NVIDIA RTX A3000 Mobile’s 70,140. This represents a 16.9% advantage for AMD across all recorded benchmarks.

Q: How do the two compare in Vulkan performance specifically?

A: AMD wins decisively with a Geekbench Vulkan score of 78,428 versus NVIDIA’s 61,189, a 28.2% delta in AMD’s favor. This is the largest performance gap between the two cards in any test.

Q: What about OpenCL performance?

A: NVIDIA takes the OpenCL test with 79,091 against AMD’s 73,514, a 7.1% margin. This is a much narrower win than AMD’s Vulkan advantage, suggesting NVIDIA’s OpenCL lead is less pronounced.

Q: Does the NVIDIA card have any compute-specific hardware?

A: Yes, the RTX A3000 Mobile includes 128 tensor cores and 32 RT cores, whereas the AMD Radeon PRO W6600 has 28 RT cores and no tensor cores. However, no benchmark data in this comparison directly tests these features.

Q: Which card has more memory bandwidth?

A: The NVIDIA RTX A3000 Mobile offers 264.0 GB/s bandwidth on a 192-bit bus, while the AMD card provides 224.0 GB/s on a 128-bit bus. NVIDIA leads by 17.9% in bandwidth but has 2 GB less capacity.

Q: What are the thermal design power ratings?

A: The AMD Radeon PRO W6600 is rated at 100 W TDP, while the NVIDIA RTX A3000 Mobile is rated at 70 W TDP. This makes NVIDIA more power-efficient per watt, though AMD’s higher TDP enables higher clock speeds.

The Verdict

The data paints a clear picture for different use cases. The AMD Radeon PRO W6600 is the superior choice for Vulkan-centric workflows, offering a 28.2% performance advantage in that API, alongside a higher average benchmark score (81,995 vs. 70,140) and 2 GB additional memory. Its 92nd percentile ranking versus NVIDIA’s 91st further cements its overall performance edge. Users running modern rendering engines, Vulkan-based CAD tools, or Metal-compatible environments (given its 94,042 Metal score) should gravitate toward AMD.

The NVIDIA RTX A3000 Mobile, despite losing the average score battle, wins in OpenCL by 7.1% and offers higher memory bandwidth (264.0 GB/s vs. 224.0 GB/s). Its 70 W TDP makes it more suitable for power-constrained environments, and its 128 tensor cores provide dedicated hardware for AI workloads—though no benchmark confirms this advantage. The RTX A3000 Mobile’s nearest rivals are older cards like the Quadro P6000 and Radeon Pro WX 8200, suggesting it competes in a more modest performance tier, while AMD’s rivals include the RTX 5090, indicating a higher performance bracket.

For OpenCL-only legacy applications or bandwidth-sensitive tasks, the NVIDIA card makes a reasonable case. For everything else—Vulkan, Metal, average performance, memory capacity—the AMD Radeon PRO W6600 is the data-backed winner. The choice ultimately hinges on API priorities: NVIDIA for OpenCL fidelity, AMD for broader and faster performance across modern interfaces.