AMD Radeon PRO W7900 vs NVIDIA RTX PRO 4500 Blackwell Server Comparison

The AMD Radeon PRO W7900 and NVIDIA RTX PRO 4500 Blackwell Server represent two distinct approaches to professional graphics. The database shows a clear split: the W7900 is a workstation card with a substantial benchmark history, while the RTX PRO 4500 is a server-oriented product with no recorded benchmark scores yet. This analysis relies strictly on the recorded data to compare their measured performance, architectural choices, and physical characteristics.

Head-to-Head Benchmarks

The recorded data includes no direct head-to-head benchmark comparisons between these two cards. The head-to-head benchmark list is empty, and neither card has a win count in a direct matchup. The AMD Radeon PRO W7900 does have two recorded benchmark scores in the database: 84,379 in Geekbench OpenCL and 137,070 in Geekbench Vulkan. Its average benchmark score is 110,725, placing it at the 94th percentile among all GPUs. The NVIDIA RTX PRO 4500 Blackwell Server has no recorded benchmarks, an average score of zero, and sits at the 50th percentile, which reflects the absence of measured data rather than actual performance.

Without direct comparisons, the nearest rival data for the W7900 provides context for its performance tier. The W7900 averages 1% above the AMD Radeon Pro Vega II, which holds an average score of 109,617. Against the NVIDIA RTX A5500 Mobile, the W7900 trails by 2.8%, as that mobile GPU averages 113,944. The W7900 sits 3.2% ahead of the AMD Radeon Pro W6600X, which averages 107,342, and 3.2% behind the NVIDIA Tesla V100 SXM2 16 GB, which averages 114,395. These deltas position the W7900 in a narrow performance band where single-digit percentage differences separate it from several established professional GPUs.

The lack of any recorded score for the RTX PRO 4500 means the database cannot confirm its competitive position. The percentile field of 50 for the RTX PRO 4500 is consistent with an unmeasured entry, not a statement of mid-pack performance. Any claim about how the RTX PRO 4500 performs against the W7900 would be speculation, and the data does not support such comparisons.

FAQ

Q: Which card has the higher average benchmark score in the database?

A: The AMD Radeon PRO W7900 has an average benchmark score of 110,725. The NVIDIA RTX PRO 4500 Blackwell Server has no recorded benchmarks, so its average score is 0.

Q: How does the W7900 compare to its nearest rivals?

A: The W7900 is 1% ahead of the AMD Radeon Pro Vega II, 3.2% ahead of the AMD Radeon Pro W6600X, 2.8% behind the NVIDIA RTX A5500 Mobile, and 3.2% behind the NVIDIA Tesla V100 SXM2 16 GB.

Q: What is the memory configuration difference?

A: The W7900 uses 48 GB of GDDR6 on a 384-bit bus with 864.0 GB/s bandwidth. The RTX PRO 4500 uses 32 GB of GDDR7 on a 256-bit bus with 800.3 GB/s bandwidth.

Q: Do both cards support the same graphics APIs?

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

Q: What are the power connector requirements?

A: The W7900 requires 2x 8-pin power connectors and a 600 W suggested PSU. The RTX PRO 4500 uses a single 16-pin connector and a 450 W suggested PSU.

Q: Does the RTX PRO 4500 have any display outputs?

A: No, the RTX PRO 4500 has no display outputs. The W7900 has 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1.

Architecture Differences

The two cards come from different architectural generations. The AMD Radeon PRO W7900 uses the Navi 31 chip based on RDNA 3.0 architecture, with the codename Plum Bonito. It belongs to the Radeon Pro Navi (Navi III Series) generation. The NVIDIA RTX PRO 4500 uses the GB203 chip based on Blackwell 2.0 architecture, with no codename recorded, and belongs to the Server Blackwell (Bxx) generation.

Both chips are fabricated on a 5 nm process at TSMC, but the transistor counts differ significantly. The W7900 packs 57,700 million transistors on a 529 mm² die, giving a transistor density of 109.1 million per square millimeter. The RTX PRO 4500 has 45,600 million transistors on a 378 mm² die, resulting in a higher density of 120.6 million per square millimeter. The smaller die with fewer transistors but higher density suggests a different design priority for the NVIDIA chip.

The compute resources show a notable divergence. The W7900 has 6,144 shading units, 384 texture mapping units, and 192 render output units. It also includes 96 ray tracing cores. The RTX PRO 4500 has 10,496 shading units, 328 TMUs, and 112 ROPs, with 82 ray tracing cores and 328 tensor cores. The W7900 has no tensor cores listed. The NVIDIA card carries more shading units but fewer TMUs and ROPs, while the AMD card has more ray tracing cores.

Clock speeds differ substantially. The W7900 runs at a 1760 MHz base and 2495 MHz boost, with memory at 2250 MHz or 18 Gbps effective. The RTX PRO 4500 has a 1215 MHz base and 2415 MHz boost, with memory at 1563 MHz or 25 Gbps effective. The higher base clock of the AMD card contributes to its higher pixel rate of 479.0 GPixel/s versus 270.5 GPixel/s for the NVIDIA card. Texture rates follow a similar pattern: 958.1 GTexel/s for the W7900 versus 792.1 GTexel/s for the RTX PRO 4500.

Floating-point performance favors the AMD card in the recorded data. The W7900 delivers 61.32 TFLOPS in both FP32 and FP16 (1:1 ratio). The RTX PRO 4500 delivers 50.70 TFLOPS in FP32 and 50.70 TFLOPS in FP16 (1:1 ratio). The W7900 holds an 18% lead in raw FP32 throughput, which is a direct consequence of its higher clock speeds and wider memory bus.

The physical and power profiles are starkly different. The W7900 has a TDP of 295 W, occupies a triple-slot width, measures 280 mm by 110 mm by 51 mm, and uses 2x 8-pin power connectors with a 600 W suggested PSU. The RTX PRO 4500 has a TDP of 165 W, fits a single-slot width, measures 267 mm by 111 mm by 40 mm, and uses a single 16-pin connector with a 450 W suggested PSU. The NVIDIA card consumes 44% less power in its TDP rating, which is a major differentiator for server environments.

The bus interface also differs: the W7900 uses PCIe 4.0 x16, while the RTX PRO 4500 uses PCIe 5.0 x16. Display outputs are another clear split: the W7900 provides four DisplayPort connections (3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1), while the RTX PRO 4500 provides none, consistent with its server positioning.

The Verdict

The database presents a clear verdict based on measured data. The AMD Radeon PRO W7900 is the only card of the two with recorded benchmark performance. Its 110,725 average score and 94th percentile ranking confirm it as a high-performing professional GPU, with its nearest rivals all within a few percentage points. The RTX PRO 4500 Blackwell Server has no recorded performance data, so the database cannot verify its capabilities against the W7900 or any other GPU.

For workloads that require display output, the W7900 is the only option between the two, as the RTX PRO 4500 has no outputs. For environments where power consumption and physical footprint matter, the RTX PRO 4500 holds the advantage in the recorded specifications: 165 W TDP versus 295 W, single-slot versus triple-slot, and a smaller overall footprint. The RTX PRO 4500 also uses a newer PCIe interface (5.0 versus 4.0) and includes tensor cores, which the W7900 lacks.

The W7900 leads in memory capacity (48 GB versus 32 GB), memory bandwidth (864.0 GB/s versus 800.3 GB/s), pixel rate, texture rate, and FP32/FP16 throughput. The RTX PRO 4500 leads in transistor density, shading unit count, tensor core count, memory type (GDDR7 versus GDDR6), power efficiency, and slot efficiency. The choice between them depends entirely on whether the user prioritizes measured compute performance and display capability, or a compact, low-power server form factor with tensor acceleration.

Specification Differences

The following fields differ between the two cards:

| Specification | AMD Radeon PRO W7900 | NVIDIA RTX PRO 4500 Blackwell Server |

|---|---|---|

| Chip | Navi 31 | GB203 |

| Architecture | RDNA 3.0 | Blackwell 2.0 |

| Codename | Plum Bonito | None |

| Generation | Radeon Pro Navi (Navi III Series) | Server Blackwell (Bxx) |

| Transistors | 57,700 million | 45,600 million |

| Die size | 529 mm² | 378 mm² |

| Transistor density | 109.1M / mm² | 120.6M / mm² |

| Base clock | 1760 MHz | 1215 MHz |

| Boost clock | 2495 MHz | 2415 MHz |

| Memory clock | 2250 MHz, 18 Gbps effective | 1563 MHz, 25 Gbps effective |

| Memory size | 48 GB | 32 GB |

| Memory type | GDDR6 | GDDR7 |

| Memory bus width | 384 bit | 256 bit |

| Memory bandwidth | 864.0 GB/s | 800.3 GB/s |

| Shading units | 6144 | 10496 |

| TMUs | 384 | 328 |

| ROPs | 192 | 112 |

| Ray tracing cores | 96 | 82 |

| Tensor cores | None | 328 |

| Pixel rate | 479.0 GPixel/s | 270.5 GPixel/s |

| Texture rate | 958.1 GTexel/s | 792.1 GTexel/s |

| FP32 | 61.32 TFLOPS | 50.70 TFLOPS |

| FP16 | 61.32 TFLOPS (1:1) | 50.70 TFLOPS (1:1) |

| TDP | 295 W | 165 W |

| Slot width | Triple-slot | Single-slot |

| Power connectors | 2x 8-pin | 1x 16-pin |

| Suggested PSU | 600 W | 450 W |

| Bus interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

| Display outputs | 3x DisplayPort 2.1, 1x mini-DisplayPort 2.1 | No outputs |

| Dimensions | 280 mm x 110 mm x 51 mm | 267 mm x 111 mm x 40 mm |

| Release date | 2023-05-25 | 2026-03-16 |

| Predecessor | Radeon Pro Vega | Server Hopper |

| Successor | None | Server Rubin |

| Launch MSRP | 3,999 USD | None |

Both cards share the same process node (5 nm TSMC), API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4), and production status (Active).

Where Each One Wins

The AMD Radeon PRO W7900 wins in every measured performance category in the database. Its FP32 throughput of 61.32 TFLOPS exceeds the RTX PRO 4500's 50.70 TFLOPS. Its pixel rate of 479.0 GPixel/s nearly doubles the 270.5 GPixel/s of the RTX PRO 4500. Its texture rate of 958.1 GTexel/s is 21% higher than 792.1 GTexel/s. The W7900 also provides 48 GB of memory versus 32 GB, with 864.0 GB/s bandwidth versus 800.3 GB/s. It has more ray tracing cores (96 versus 82) and more ROPs (192 versus 112). The W7900 is the only card with display outputs, making it suitable for any workload that needs direct visual output. Its 94th percentile ranking and average score of 110,725 give it a verified performance profile.

The NVIDIA RTX PRO 4500 Blackwell Server wins in specification categories that favor density and efficiency. Its TDP of 165 W is 130 W lower than the W7900, and its single-slot design contrasts with the triple-slot W7900. It uses GDDR7 memory with a higher effective speed of 25 Gbps, though its narrower 256-bit bus limits total bandwidth. It has 10,496 shading units, 71% more than the W7900, and includes 328 tensor cores, which the AMD card lacks entirely. Its PCIe 5.0 x16 interface doubles the bandwidth of the W7900's PCIe 4.0 x16 connection in a physical sense. The RTX PRO 4500 also has a later release date of 2026-03-16 and a defined successor in Server Rubin. Its transistor density of 120.6M per mm² is higher than the W7900's 109.1M per mm². The RTX PRO 4500 has no recorded benchmarks, so its wins are entirely in the specification and physical design domains, not in measured performance.