AMD Radeon PRO W7800 vs NVIDIA RTX 4500 Ada Generation Comparison

The NVIDIA RTX 4500 Ada Generation and AMD Radeon PRO W7800 are two workstation graphics cards that land within 1% of each other in average benchmark scores, yet they achieve parity through very different design philosophies and hardware allocations. The data shows a near-perfect split in synthetic performance, with the NVIDIA card taking a decisive win in one API while AMD counters in the other, making the choice between them heavily dependent on the specific software environment and workload characteristics of the user.

FAQ

Q: Which card has the higher average benchmark score?

A: The NVIDIA RTX 4500 Ada Generation holds a marginal edge with an average benchmark score of 166,094, compared to the AMD Radeon PRO W7800's 164,894. This represents a 0.7% difference in favor of NVIDIA.

Q: How do the two cards compare in Geekbench OpenCL performance?

A: The NVIDIA RTX 4500 Ada Generation wins the Geekbench OpenCL test by a significant margin, scoring 160,786 against the AMD Radeon PRO W7800's 154,366. This is a 4.2% advantage for NVIDIA in this compute-oriented workload.

Q: Which card performs better in Geekbench Vulkan?

A: The AMD Radeon PRO W7800 takes the Geekbench Vulkan test with a score of 175,422, surpassing the NVIDIA RTX 4500 Ada Generation's 171,401. The AMD card holds a 2.3% lead in this graphics API benchmark.

Q: What is the difference in memory capacity and bandwidth?

A: The AMD Radeon PRO W7800 offers significantly more memory with 32 GB of GDDR6 on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The NVIDIA RTX 4500 Ada Generation has 24 GB of GDDR6 on a narrower 192-bit bus, resulting in 432.0 GB/s of bandwidth.

Q: How do their transistor counts and die sizes compare?

A: The AMD card uses a larger and more complex chip, with 57,700 million transistors on a 529 mm² die. The NVIDIA card is more compact, packing 45,900 million transistors onto a 379 mm² die, giving it a higher transistor density of 121.1M / mm² versus AMD's 109.1M / mm².

Q: What is the launch MSRP of the AMD Radeon PRO W7800?

A: The AMD Radeon PRO W7800 has a launch MSRP of 2,499 USD.

Where Each One Wins

The benchmark data reveals a clear split between the two cards, with each claiming victory in a different API environment. The NVIDIA RTX 4500 Ada Generation is the stronger choice for OpenCL-based compute tasks, where its 4.2% performance advantage in Geekbench OpenCL translates to faster execution of general-purpose GPU workloads. This makes it the preferable option for users whose software relies heavily on OpenCL for rendering, simulation, or data processing.

Conversely, the AMD Radeon PRO W7800 dominates in Vulkan-based applications, outperforming the NVIDIA card by 2.3% in Geekbench Vulkan. This suggests that the AMD card is better suited for modern graphics APIs that leverage Vulkan's lower overhead and more direct hardware control, which is common in real-time rendering engines and certain CAD applications. The AMD card's substantial memory advantage—32 GB versus 24 GB—also positions it as the better choice for massive datasets and high-resolution textures that exceed the NVIDIA card's frame buffer.

The cards are essentially tied in overall average score, with the NVIDIA card's 0.7% lead being within the margin of error. However, the nature of the wins matters more than the magnitude. The NVIDIA card's OpenCL win is nearly double the size of AMD's Vulkan win, suggesting that NVIDIA has a stronger absolute performance ceiling in compute-heavy scenarios. Meanwhile, the AMD card's Vulkan edge, combined with its superior memory subsystem, makes it the more versatile option for graphics-centric workflows.

Architecture Differences

The two cards embody fundamentally different architectural approaches from their respective manufacturers. The NVIDIA RTX 4500 Ada Generation is built on the Ada Lovelace architecture, using the AD103 chip, and is part of the GeForce 40-series lineage. The AMD Radeon PRO W7800 utilizes the RDNA 3.0 architecture with the Navi 31 chip, codenamed Plum Bonito. Both are fabricated on a 5 nm process at TSMC, but the similarities end there.

NVIDIA's design emphasizes compute density, with 7,680 shading units, 240 texture mapping units, and 80 raster output units. It also includes 60 dedicated RT cores and 240 tensor cores, the latter being absent from the AMD card entirely. This gives the NVIDIA card a distinct advantage in AI-accelerated workloads and DLSS-style features. The AMD card, by contrast, uses a wider but shallower approach with 4,480 shading units, 280 TMUs, and 128 ROPs, along with 70 RT cores. While AMD has fewer shaders, it compensates with higher clock speeds and a more aggressive memory configuration.

The architectural differences also manifest in compute precision. The NVIDIA card delivers 39.63 TFLOPS for both FP32 and FP16, indicating a 1:1 ratio. The AMD card offers 45.25 TFLOPS for FP32 but doubles that to 90.50 TFLOPS for FP16, showing a 2:1 ratio that provides a massive throughput advantage for half-precision workloads. This makes the AMD card particularly strong in AI training and inference tasks that rely on FP16 arithmetic.

Specification Differences

The specification sheets reveal stark contrasts in almost every major category. The most obvious difference is memory: the AMD Radeon PRO W7800 has 32 GB of GDDR6 compared to the NVIDIA RTX 4500 Ada Generation's 24 GB. This is compounded by the bus width, where AMD uses a 256-bit interface versus NVIDIA's 192-bit, resulting in bandwidth of 576.0 GB/s for AMD and 432.0 GB/s for NVIDIA—a 33% advantage for the AMD card.

The cards also differ significantly in power requirements. The NVIDIA card has a TDP of 210 W and requires no power connectors, relying solely on the PCIe slot, with a suggested PSU of 550 W. The AMD card has a higher TDP of 260 W and requires two 8-pin power connectors, with a suggested PSU of 600 W. Physically, the NVIDIA card is shorter at 245 mm in length and 112 mm in height, while the AMD card extends to 280 mm in length, 110 mm in height, and has a defined width of 40 mm. Both are dual-slot designs.

Display outputs differ as well. The NVIDIA card offers four DisplayPort 1.4a ports, while the AMD card provides three DisplayPort 2.1 ports and one mini-DisplayPort 2.1. The AMD card's support for the newer DisplayPort 2.1 standard allows for higher bandwidth and resolution support over a single cable. The NVIDIA card has a higher boost clock of 2580 MHz versus AMD's 2525 MHz, but AMD's base clock of 1895 MHz is lower than NVIDIA's 2070 MHz.

Head-to-Head Benchmarks

The two available benchmark results paint a picture of a finely balanced contest. In the Geekbench OpenCL test, the NVIDIA RTX 4500 Ada Generation scores 160,786 against the AMD Radeon PRO W7800's 154,366. This 4.2% delta is the largest margin between the two cards in any test and represents NVIDIA's strongest showing. The NVIDIA card's higher shading unit count and tensor core presence likely contribute to this lead in compute-heavy OpenCL workloads.

The Geekbench Vulkan test flips the result, with the AMD Radeon PRO W7800 scoring 175,422 versus NVIDIA's 171,401. This 2.3% advantage for AMD demonstrates the efficiency of its RDNA 3.0 architecture in graphics-centric APIs. The AMD card's higher pixel rate of 323.2 GPixel/s, compared to NVIDIA's 206.4 GPixel/s, suggests a significant advantage in fill-rate-bound scenarios that Vulkan benchmarks often stress.

When placed in the context of their nearest rivals, the two cards occupy nearly identical positions in the performance hierarchy. The NVIDIA card sits 0.5% above the NVIDIA RTX A5500 and 1.5% below the AMD Radeon Pro W6900X. The AMD card is 0.2% below the RTX A5500 and 2.2% above the NVIDIA A100 PCIe 40 GB. Both cards achieve the 97th percentile against all GPUs, confirming their status as top-tier workstation solutions. The head-to-head results show one win each, with the magnitude of NVIDIA's OpenCL victory being nearly double the size of AMD's Vulkan win, suggesting that the NVIDIA card may offer slightly better overall compute value despite the AMD card's compelling memory and FP16 advantages.