AMD Radeon PRO W6600 vs NVIDIA GeForce RTX 3090 Ti Comparison

The Verdict

The data in this comparison is unambiguous. The NVIDIA GeForce RTX 3090 Ti is a performance-class GPU that dominates the AMD Radeon PRO W6600 in every benchmark recorded in the database. The RTX 3090 Ti records an average benchmark score of 131,938, placing it in the 95th percentile of all GPUs, while the Radeon PRO W6600 averages 81,995, a figure that still lands in the 92nd percentile. That 49,943-point gap in average score represents a massive performance chasm between the two.

The RTX 3090 Ti is the clear choice for anyone whose workload demands maximum throughput in OpenCL or Vulkan applications. It wins both head-to-head tests by enormous margins: 137.3% in Geekbench OpenCL and 174.9% in Geekbench Vulkan. The Radeon PRO W6600, by contrast, is a lower-power, single-slot professional card that trades raw compute for efficiency and a compact footprint.

Who should pick which? The RTX 3090 Ti targets users with heavy rendering, simulation, or GPU-compute workloads that can exploit its 24 GB of GDDR6X memory and 40.00 TFLOPS of FP32 throughput. The Radeon PRO W6600 suits environments where physical space, power draw, and thermal output are constrained, and where the workload does not require the extreme compute headroom of the NVIDIA card. The data shows no scenario in this benchmark set where the AMD card wins, so the decision hinges entirely on whether the user needs the RTX 3090 Ti's performance level at all.

Architecture Differences

The two GPUs come from different foundries, different process nodes, and fundamentally different design philosophies. The RTX 3090 Ti uses the GA102 chip built on NVIDIA's Ampere architecture, manufactured on Samsung's 8 nm process. It packs 28,300 million transistors into a 628 mm² die, yielding a transistor density of 45.1M per mm². The Radeon PRO W6600 uses the Navi 23 chip on AMD's RDNA 2.0 architecture, built on TSMC's 7 nm process. It contains 11,060 million transistors on a 237 mm² die, for a density of 46.7M per mm². The AMD chip is denser per square millimeter, but the NVIDIA die is nearly three times larger overall.

The compute resources differ dramatically. The RTX 3090 Ti carries 10,752 shading units, 336 texture mapping units, and 112 ROPs. It also includes 84 RT cores and 336 tensor cores, enabling hardware-accelerated ray tracing and AI workloads. The Radeon PRO W6600 has 1,792 shading units, 112 TMUs, and 64 ROPs, along with 28 ray accelerators and no tensor core equivalent. These raw counts explain the massive floating-point gap: the RTX 3090 Ti delivers 40.00 TFLOPS of FP32 performance, while the W6600 manages 9.247 TFLOPS. In FP16, the NVIDIA card again delivers 40.00 TFLOPS at a 1:1 ratio, whereas the AMD card achieves 18.49 TFLOPS at a 2:1 ratio.

Memory configurations are equally divergent. The RTX 3090 Ti has 24 GB of GDDR6X on a 384-bit bus, producing 1.01 TB/s of bandwidth. The Radeon PRO W6600 has 8 GB of GDDR6 on a 128-bit bus, yielding 224.0 GB/s. Clock speeds tell a different story: the AMD card runs at 2331 MHz base and 2580 MHz boost, while the NVIDIA card runs at 1560 MHz base and 1860 MHz boost. The AMD card's higher clocks do not compensate for its far smaller execution engine.

Power and physical design also separate them. The RTX 3090 Ti has a 450 W TDP, requires a 850 W suggested power supply, uses a 1x 16-pin power connector, and occupies a triple-slot width. The Radeon PRO W6600 has a 100 W TDP, needs only a 300 W power supply, uses a 1x 6-pin connector, and fits in a single slot. The NVIDIA card measures 336 mm in length, 140 mm in height, and 61 mm in width; the AMD card is 241 mm long with no recorded height or width. The RTX 3090 Ti also connects via PCIe 4.0 x16, while the W6600 uses PCIe 4.0 x8. Display outputs differ as well: the NVIDIA card offers 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the AMD card provides 4x DisplayPort 1.4a.

Where Each One Wins

Based on the recorded benchmarks, the RTX 3090 Ti wins everywhere. In Geekbench OpenCL, it scores 174,441 versus the W6600's 73,514, a 137.3% advantage. In Geekbench Vulkan, it scores 215,633 against 78,428, a 174.9% lead. These are not narrow wins; they are generational-scale gaps.

The RTX 3090 Ti is the pick for GPU compute tasks that scale with raw FP32 throughput, memory bandwidth, and VRAM capacity. Its 24 GB frame buffer and 1.01 TB/s bandwidth make it suited for large datasets, high-resolution textures, and multi-GPU rendering pipelines. The 336 tensor cores add AI inference and DLSS-class workloads to its repertoire. The 84 RT cores enable ray-traced rendering at performance levels the W6600 cannot approach.

The Radeon PRO W6600 wins on practical deployment factors, not benchmark scores. Its 100 W TDP means it can be powered by a 300 W power supply, and its single-slot design fits into dense workstation chassis where the triple-slot RTX 3090 Ti would not. Its 4x DisplayPort 1.4a outputs give it multi-monitor flexibility without adapters. For users whose applications are not GPU-compute bound, the W6600 provides professional RDNA 2.0 features in a far more manageable package. But the benchmark data records no test where the AMD card outperforms the NVIDIA card.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 3090 Ti has an average benchmark score of 131,938, compared to the AMD Radeon PRO W6600's 81,995. The NVIDIA card sits in the 95th percentile of all GPUs, while the AMD card sits in the 92nd percentile.

Q: How large is the performance gap in Vulkan?

A: In Geekbench Vulkan, the RTX 3090 Ti scores 215,633 versus 78,428 for the W6600, a 174.9% advantage for the NVIDIA card.

Q: What are the memory specifications of each card?

A: The RTX 3090 Ti has 24 GB of GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth. The Radeon PRO W6600 has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth.

Q: Which card consumes less power?

A: The AMD Radeon PRO W6600 has a 100 W TDP and requires a 300 W suggested power supply. The NVIDIA GeForce RTX 3090 Ti has a 450 W TDP and requires an 850 W suggested power supply.

Q: Does the Radeon PRO W6600 have tensor cores?

A: No. The Radeon PRO W6600 has 28 ray accelerators but no tensor cores. The RTX 3090 Ti includes 336 tensor cores alongside its 84 RT cores.

Q: How do the two cards compare in FP32 floating-point performance?

A: The RTX 3090 Ti delivers 40.00 TFLOPS of FP32 performance, while the Radeon PRO W6600 delivers 9.247 TFLOPS. The NVIDIA card is roughly four times faster in this metric.

Head-to-Head Benchmarks

The database records two direct head-to-head benchmark comparisons between these GPUs, and both are decisive victories for the NVIDIA GeForce RTX 3090 Ti.

In Geekbench OpenCL, the RTX 3090 Ti scores 174,441. The Radeon PRO W6600 scores 73,514. The delta is 137.3%. This test exercises general-purpose GPU compute across a wide range of workloads, and the NVIDIA card's 40.00 TFLOPS FP32 throughput, combined with its 1.01 TB/s memory bandwidth, overwhelms the W6600's 9.247 TFLOPS and 224.0 GB/s. The OpenCL result also reflects the difference in shading units: 10,752 on the NVIDIA chip versus 1,792 on the AMD chip. The 24 GB GDDR6X frame buffer provides additional headroom for memory-intensive compute kernels that the 8 GB W6600 cannot accommodate.

The Geekbench Vulkan result is even more lopsided. The RTX 3090 Ti scores 215,633, while the W6600 scores 78,428, a 174.9% delta. Vulkan's lower-level API overhead allows the hardware to stretch further, and the NVIDIA card's architecture responds with a 137,205-point raw score advantage. This test likely benefits from the RTX 3090 Ti's higher pixel rate of 208.3 GPixel/s and texture rate of 625.0 GTexel/s, compared to the W6600's 165.1 GPixel/s and 289.0 GTexel/s. The NVIDIA card's PCIe 4.0 x16 interface also provides twice the lane width of the W6600's PCIe 4.0 x8 connection, which can matter for data transfer in Vulkan workloads.

The RTX 3090 Ti also registers a third benchmark result in the database, a 3DMark Steel Nomad DX12 score of 5,741, though the W6600 has no corresponding entry in this test. The NVIDIA card's nearest rivals in the database are the NVIDIA L4 at 0.7% behind, the RTX 4000 Ada Generation at 2.4% behind, the NVIDIA A10M at 2.4% behind, and the AMD Radeon PRO W6800 at 2.6% behind. The W6600's nearest rivals are the AMD Radeon Pro Vega 64X at 1.3% behind, the NVIDIA GeForce RTX 5090 at 2.7% behind, and two Tesla P100 variants at 3% and 3.3% behind.

The overall picture is clear. The RTX 3090 Ti wins both recorded head-to-head matchups by margins exceeding 137%, and its average score of 131,938 places it in the 95th percentile of all GPUs. The W6600, despite holding a 92nd percentile ranking itself, cannot close a gap of this magnitude in compute-heavy synthetic workloads. The AMD card's strengths lie in its 7 nm efficiency, single-slot design, and low power envelope, not in raw benchmark performance. Users who need maximum OpenCL and Vulkan performance should look to the RTX 3090 Ti; users who need a compact, low-power professional card with four DisplayPort outputs will find the W6600 purpose-built for that role.