AMD Radeon PRO W7800 vs NVIDIA GeForce RTX 3090 Ti Comparison

The AMD Radeon PRO W7800 and NVIDIA GeForce RTX 3090 Ti are two very different high-end graphics cards, separated by roughly a year and aimed at different segments. The data shows a clear split: the RTX 3090 Ti dominates in raw compute benchmarks, while the W7800 offers architectural advantages like a smaller process node and double the memory capacity. The benchmark results indicate the NVIDIA card is faster in the two available tests, but the AMD card is a professional-grade workstation part with a focus on memory capacity and efficiency, whereas the RTX 3090 Ti is a consumer flagship with a much higher power draw.

The Verdict

From the data, the NVIDIA GeForce RTX 3090 Ti is the clear winner in raw benchmark performance. It beats the AMD Radeon PRO W7800 by 11.5% in Geekbench OpenCL and by 18.6% in Geekbench Vulkan. For any task measured by these two tests, the RTX 3090 Ti is the superior choice. It sits in the 95th percentile of all GPUs, while the W7800 sits slightly higher at the 97th percentile, but the actual scores favor NVIDIA.

However, the AMD Radeon PRO W7800 is the better pick for workloads that demand massive memory capacity. It comes with 32 GB of GDDR6 memory, compared to the RTX 3090 Ti's 24 GB of GDDR6X. While the RTX 3090 Ti has a wider 384-bit memory bus and significantly higher bandwidth at 1.01 TB/s versus 576.0 GB/s, the W7800's extra 8 GB of VRAM can be a decisive factor for large datasets or high-resolution textures that exceed 24 GB. The W7800 also uses a 5 nm process from TSMC, making it a more modern and power-efficient design, drawing 260 W compared to the RTX 3090 Ti's 450 W.

The choice depends on the priority. If absolute compute performance is the only metric, the RTX 3090 Ti wins decisively. If memory capacity, power efficiency, and a professional form factor are more critical, the W7800 has clear advantages. The RTX 3090 Ti is also end-of-life, while the W7800 is an active product line. The RTX 3090 Ti had a launch MSRP of 1,999 USD. The W7800 had a launch MSRP of 2,499 USD.

FAQ

Q: Which card is faster in the available benchmark tests?

A: The NVIDIA GeForce RTX 3090 Ti is faster in both tests. It scores 174441 in Geekbench OpenCL and 215633 in Geekbench Vulkan, compared to the AMD Radeon PRO W7800's scores of 154366 and 175422, respectively.

Q: How much memory does each card have?

A: The AMD Radeon PRO W7800 has 32 GB of GDDR6 memory. The NVIDIA GeForce RTX 3090 Ti has 24 GB of GDDR6X memory.

Q: What are the power consumption differences?

A: The AMD Radeon PRO W7800 has a TDP of 260 W, while the NVIDIA GeForce RTX 3090 Ti has a TDP of 450 W. The suggested PSU for the W7800 is 600 W, whereas the RTX 3090 Ti requires an 850 W PSU.

Q: Which card has a more advanced manufacturing process?

A: The AMD Radeon PRO W7800 is built on a 5 nm process at TSMC. The NVIDIA GeForce RTX 3090 Ti is built on an 8 nm process at Samsung.

Q: What is the performance percentile ranking for each card?

A: The AMD Radeon PRO W7800 is in the 97th percentile of all GPUs, while the NVIDIA GeForce RTX 3090 Ti is in the 95th percentile.

Q: Are there differences in their physical size?

A: Yes. The AMD Radeon PRO W7800 is a dual-slot card measuring 280 mm in length, 110 mm in height, and 40 mm in width. The NVIDIA GeForce RTX 3090 Ti is a triple-slot card measuring 336 mm in length, 140 mm in height, and 61 mm in width.

Architecture Differences

The architectural divide between these two cards is substantial. The AMD Radeon PRO W7800 is built on the RDNA 3.0 architecture, using the Navi 31 chip with the codename "Plum Bonito." It is fabricated on a 5 nm process at TSMC, which allows for a very high transistor density of 109.1 million transistors per mm². This chip contains 57,700 million transistors on a die size of 529 mm².

In contrast, the NVIDIA GeForce RTX 3090 Ti uses the Ampere architecture with the GA102 chip. It is built on an 8 nm process at Samsung, resulting in a much lower transistor density of 45.1 million transistors per mm². The GA102 die is larger at 628 mm² but contains fewer transistors, at 28,300 million. This points to a fundamental difference in design philosophy, with AMD's chip being more densely packed and modern.

The memory subsystems also reflect different priorities. The W7800 uses 32 GB of GDDR6 memory on a 256-bit bus. The RTX 3090 Ti uses 24 GB of GDDR6X on a wider 384-bit bus. The RTX 3090 Ti also has a massive advantage in raw shading hardware, with 10752 shading units compared to the W7800's 4480. It also has more texture mapping units (336 vs 280) and more RT cores (84 vs 70). Conversely, the W7800 has more ROPs, with 128 compared to the RTX 3090 Ti's 112.

Specification Differences

The two cards differ across nearly every key specification. The AMD Radeon PRO W7800 has a base clock of 1895 MHz and a boost clock of 2525 MHz. The NVIDIA GeForce RTX 3090 Ti has a lower base clock of 1560 MHz and a boost clock of 1860 MHz. The memory clocks also differ, with the W7800 running at 2250 MHz (18 Gbps effective) and the RTX 3090 Ti at 1313 MHz (21 Gbps effective).

The compute capabilities are distinct. The W7800 offers 45.25 TFLOPS of FP32 performance and 90.50 TFLOPS of FP16 performance, the latter at a 2:1 ratio. The RTX 3090 Ti offers 40.00 TFLOPS of FP32 and 40.00 TFLOPS of FP16, with a 1:1 ratio. The pixel rate is higher on the W7800 at 323.2 GPixel/s versus 208.3 GPixel/s, but the texture rate is slightly higher on the W7800 at 707.0 GTexel/s versus 625.0 GTexel/s.

The physical and power characteristics are also vastly different. The W7800 has a TDP of 260 W and uses two 8-pin power connectors. The RTX 3090 Ti has a TDP of 450 W and uses a single 16-pin connector. The W7800 is a dual-slot card, while the RTX 3090 Ti is a triple-slot card. Display outputs differ as well, with the W7800 featuring 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1, while the RTX 3090 Ti has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Head-to-Head Benchmarks

The head-to-head data is limited to two tests, and the NVIDIA GeForce RTX 3090 Ti wins both decisively. In Geekbench OpenCL, the RTX 3090 Ti scores 174441, which is 11.5% higher than the AMD Radeon PRO W7800's score of 154366. This is a significant margin, indicating a clear advantage for NVIDIA in general-purpose compute workloads.

The gap widens further in Geekbench Vulkan. The RTX 3090 Ti scores 215633, while the W7800 scores 175422. This represents an 18.6% performance delta in favor of the NVIDIA card. The data shows that the RTX 3090 Ti is not just slightly faster, but substantially ahead in both tested scenarios. The average benchmark score for the RTX 3090 Ti is 131938, while the W7800 has an average benchmark score of 164894, though this figure includes data from other tests not in the head-to-head comparison.

Where Each One Wins

The NVIDIA GeForce RTX 3090 Ti wins outright in the benchmark-driven performance category. It is 11.5% ahead in OpenCL and 18.6% ahead in Vulkan. For any user whose primary concern is raw compute throughput as measured by these tests, the RTX 3090 Ti is the definitive choice. It also has a higher memory bandwidth of 1.01 TB/s, which can benefit memory-intensive tasks that fit within its 24 GB frame buffer.

The AMD Radeon PRO W7800 wins in capacity and efficiency. Its 32 GB of memory is 33% larger than the RTX 3090 Ti's 24 GB, which is critical for workloads like massive 3D scenes, large language models, or high-resolution scientific visualization that exceed 24 GB. It is also significantly more power-efficient, with a 260 W TDP versus 450 W, and requires a 600 W PSU versus an 850 W PSU. The W7800 also has a higher pixel rate, suggesting it may be well-suited for fill-rate-limited tasks. Furthermore, the W7800 is an active product, while the RTX 3090 Ti is end-of-life. The W7800's use of a more advanced 5 nm process also points to a longer-term viability in a professional setting.