AMD Radeon PRO W7800 vs NVIDIA RTX 4000 SFF Ada Generation Comparison

AMD Radeon PRO W7800 vs NVIDIA RTX 4000 SFF Ada Generation presents a stark contrast in workstation GPU design philosophy. The data reveals two cards engineered for entirely different physical and performance envelopes, with the AMD part dominating raw compute benchmarks while the NVIDIA card offers a radically more compact and power-efficient footprint. Benchmark results indicate the W7800 holds a commanding lead in synthetic tests, yet the RTX 4000 SFF’s specifications suggest it targets scenarios where space and power constraints are paramount.

Head-to-Head Benchmarks

The head-to-head benchmark data is decisively one-sided. In the Geekbench OpenCL test, the AMD Radeon PRO W7800 scores 154,366 points against the NVIDIA RTX 4000 SFF Ada Generation’s 124,812 points. This translates to a 23.7% delta in favor of AMD. The margin widens dramatically in the Geekbench Vulkan test, where the W7800 achieves 175,422 points compared to the RTX 4000 SFF’s 109,364 points — a substantial 60.4% advantage for AMD. These are not narrow victories; they represent a generational gap in raw throughput that aligns with the cards’ vastly different physical specifications.

Looking at the broader competitive landscape, the W7800’s average benchmark score of 164,894 places it in the 97th percentile of all GPUs. Its nearest rivals include the NVIDIA RTX A5500 (average score 165,217, a -0.2% delta) and the RTX 4500 Ada Generation (average score 166,094, a -0.7% delta), indicating the W7800 sits in a tightly contested performance tier where fractions of a percent separate competitors. The RTX 4000 SFF, by contrast, holds an average score of 117,088, placing it in the 95th percentile. Its closest rivals are the NVIDIA GB10 (117,393, -0.3% delta) and AMD Radeon PRO W7700 (118,976, -1.6% delta), showing it competes in a lower absolute performance band despite its high percentile ranking.

The Vulkan delta of 60.4% is particularly telling. It suggests the W7800’s architectural advantages—specifically its higher shading unit count and memory bandwidth—translate into outsized gains in APIs that leverage explicit hardware control. The OpenCL margin, while smaller, still demonstrates a clear 23.7% performance gap that would be noticeable in compute-heavy workloads. The data does not show a single benchmark where the RTX 4000 SFF wins or comes close, making the performance hierarchy unambiguous.

Where Each One Wins

The AMD Radeon PRO W7800 wins unequivocally in raw compute performance. Its FP32 throughput of 45.25 TFLOPS dwarfs the RTX 4000 SFF’s 19.17 TFLOPS, a difference of over 2.3x. This advantage extends to memory: the W7800 offers 32 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth, versus the RTX 4000 SFF’s 20 GB on a 160-bit bus with 280.0 GB/s. For workloads that saturate memory bandwidth—such as large dataset processing, high-resolution rendering, or complex simulations—the W7800’s 576.0 GB/s provides a clear operational edge.

The RTX 4000 SFF wins in physical and power efficiency, which is its primary design objective. Its 70 W TDP is a fraction of the W7800’s 260 W, and it requires no external power connectors, drawing all power from the PCIe slot. Its dimensions of 168 mm length and 69 mm height make it substantially smaller than the W7800’s 280 mm length and 110 mm height. The suggested PSU rating of 250 W versus 600 W further underscores this efficiency focus. The RTX 4000 SFF also brings 192 tensor cores and 48 RT cores, whereas the W7800 lists no tensor core count and has 70 RT cores. For AI inference or ray-traced workloads that leverage NVIDIA’s tensor core ecosystem, the RTX 4000 SFF offers specialized hardware the AMD card lacks in its spec sheet.

The use-case split is clear: the W7800 is for performance-maximizing workstations where size and power are secondary, while the RTX 4000 SFF targets compact, low-power deployments—such as small-form-factor workstations or edge computing—where its 70 W TDP and no-connector design enable installation in thermally and spatially constrained environments.

Architecture Differences

The two cards are built on the same 5 nm TSMC process node, but their architectures diverge fundamentally. The AMD Radeon PRO W7800 uses the Navi 31 chip with the RDNA 3.0 architecture, codenamed Plum Bonito. It integrates 57,700 million transistors on a 529 mm² die, yielding a transistor density of 109.1M per mm². The NVIDIA RTX 4000 SFF Ada Generation uses the AD104 chip with the Ada Lovelace architecture, integrating 35,800 million transistors on a 294 mm² die, with a higher density of 121.8M per mm². This means NVIDIA packs transistors more densely, while AMD uses a larger die to accommodate more raw hardware.

Core counts differ sharply. The W7800 has 4,480 shading units, 280 TMUs, and 128 ROPs, alongside 70 RT cores. The RTX 4000 SFF has 6,144 shading units—36% more—but only 192 TMUs and 64 ROPs. Critically, the RTX 4000 SFF includes 192 tensor cores, a feature absent from the W7800’s specification list. The AMD card’s higher ROP count (128 vs 64) directly contributes to its pixel rate of 323.2 GPixel/s versus the NVIDIA card’s 99.84 GPixel/s. Similarly, the texture rate of 707.0 GTexel/s for AMD far exceeds NVIDIA’s 299.5 GTexel/s.

Clock speeds tell a story of power allocation. The W7800 runs at a 1895 MHz base and 2525 MHz boost, while the RTX 4000 SFF operates at just 720 MHz base and 1560 MHz boost. This low clock speed enables the RTX 4000 SFF’s 70 W TDP, but it limits FP32 output to 19.17 TFLOPS—identical to its FP16 rate, indicating a 1:1 ratio. The W7800 doubles its FP16 performance to 90.50 TFLOPS via a 2:1 ratio, further widening the compute gap. Memory configurations also diverge: the W7800 uses 2250 MHz GDDR6 with 18 Gbps effective speed, while the RTX 4000 SFF uses 1750 MHz with 14 Gbps effective. Display outputs differ too, with the W7800 offering 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1, versus the RTX 4000 SFF’s 4x mini-DisplayPort 1.4a.

FAQ

Q: Which card has higher raw compute performance?

A: The AMD Radeon PRO W7800. Its FP32 throughput is 45.25 TFLOPS compared to 19.17 TFLOPS for the RTX 4000 SFF, and it wins both head-to-head benchmarks with deltas of 23.7% (OpenCL) and 60.4% (Vulkan).

Q: Does the RTX 4000 SFF offer any advantages in memory capacity?

A: No. The W7800 has 32 GB of GDDR6 memory, while the RTX 4000 SFF has 20 GB. The W7800 also provides more than double the memory bandwidth: 576.0 GB/s versus 280.0 GB/s.

Q: Why would someone choose the RTX 4000 SFF given its lower benchmark scores?

A: Its 70 W TDP and lack of external power connectors make it suitable for compact systems where the W7800’s 260 W TDP and 600 W suggested PSU would be impractical. Its dimensions (168 mm length) are also dramatically smaller than the W7800’s 280 mm length.

Q: Are there architectural features unique to one card?

A: Yes. The RTX 4000 SFF includes 192 tensor cores, which the W7800 does not list. The W7800 has more ROPs (128 vs 64) and RT cores (70 vs 48), but the RTX 4000 SFF has more shading units (6,144 vs 4,480).

Q: How do these cards compare to their nearest market rivals?

A: The W7800’s average score of 164,894 is within -0.7% of the RTX 4500 Ada Generation. The RTX 4000 SFF’s average of 117,088 is within -1.6% of the AMD Radeon PRO W7700, placing both cards in competitive tiers relative to their respective performance classes.

Q: Which card has a higher pixel fill rate?

A: The W7800, with a pixel rate of 323.2 GPixel/s versus the RTX 4000 SFF’s 99.84 GPixel/s. This aligns with the W7800’s 2x ROP count and higher clock speeds.

The Verdict

The data supports a clear split decision based on workload and physical constraints. For users prioritizing maximum compute throughput, the AMD Radeon PRO W7800 is the definitive choice. Its 60.4% Vulkan lead and 23.7% OpenCL advantage over the RTX 4000 SFF, combined with 2.3x FP32 performance and double the memory bandwidth, make it superior for compute-intensive tasks like rendering, simulation, or large-scale data processing. Its 32 GB memory capacity also provides a headroom advantage for datasets that exceed the RTX 4000 SFF’s 20 GB.

However, the RTX 4000 SFF is not without merit. Its 70 W TDP and slot-powered design—no external connectors—enable deployments in systems where the W7800’s 260 W TDP and 600 W PSU requirement are non-starters. Its compact 168 mm length and 69 mm height fit in small-form-factor chassis that cannot accommodate the W7800’s 280 mm length. The inclusion of 192 tensor cores also offers specialized AI acceleration that the W7800 does not specify. For users building a low-power, space-constrained workstation with a focus on AI inference or NVIDIA-specific software stacks, the RTX 4000 SFF is the logical pick. For everyone else, the W7800’s benchmark dominance makes it the performance leader.

Specification Differences

| Specification | AMD Radeon PRO W7800 | NVIDIA RTX 4000 SFF Ada Generation |

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

| Chip | Navi 31 | AD104 |

| Architecture | RDNA 3.0 | Ada Lovelace |

| Transistors | 57,700 million | 35,800 million |

| Die Size | 529 mm² | 294 mm² |

| Base Clock | 1895 MHz | 720 MHz |

| Boost Clock | 2525 MHz | 1560 MHz |

| Memory Size | 32 GB GDDR6 | 20 GB GDDR6 |

| Memory Bus | 256 bit | 160 bit |

| Memory Bandwidth | 576.0 GB/s | 280.0 GB/s |

| Shading Units | 4,480 | 6,144 |

| TMUs | 280 | 192 |

| ROPs | 128 | 64 |

| RT Cores | 70 | 48 |

| Tensor Cores | None listed | 192 |

| FP32 Performance | 45.25 TFLOPS | 19.17 TFLOPS |

| FP16 Performance | 90.50 TFLOPS (2:1) | 19.17 TFLOPS (1:1) |

| Pixel Rate | 323.2 GPixel/s | 99.84 GPixel/s |

| Texture Rate | 707.0 GTexel/s | 299.5 GTexel/s |

| TDP | 260 W | 70 W |

| Power Connectors | 2x 8-pin | None |

| Suggested PSU | 600 W | 250 W |

| Length | 280 mm | 168 mm |

| Height | 110 mm | 69 mm |

| Display Outputs | 3x DP 2.1, 1x mini-DP 2.1 | 4x mini-DP 1.4a |

| Release Date | 2023-04-12 | 2023-03-20 |

| Launch MSRP | 2,499 USD | Not listed |