NVIDIA GeForce RTX 4090 D vs NVIDIA RTX 4000 SFF Ada Generation Comparison

The NVIDIA GeForce RTX 4090 D and the NVIDIA RTX 4000 SFF Ada Generation occupy opposite ends of the Ada Lovelace spectrum. The RTX 4090 D is a full-scale, triple-slot flagship with a 98th percentile ranking across all GPUs, while the RTX 4000 SFF is a dual-slot, low-profile workstation card that still manages a 95th percentile position. Both share the same 5 nm TSMC process and Ada Lovelace architecture, but the data shows they are built for entirely different tasks, with the RTX 4090 D delivering over twice the raw performance in the available head-to-head tests.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA GeForce RTX 4090 D has an average benchmark score of 178,050, while the NVIDIA RTX 4000 SFF Ada Generation scores 117,088. This places the RTX 4090 D in the 98th percentile of all GPUs, compared to the 95th percentile for the RTX 4000 SFF.

Q: How large is the performance gap in the head-to-head tests?

A: In Geekbench OpenCL, the RTX 4090 D scores 278,621 against 124,812 for the RTX 4000 SFF, a 123.2% advantage. In Geekbench Vulkan, the RTX 4090 D scores 246,941 versus 109,364, a 125.8% lead. The RTX 4090 D wins both head-to-head benchmark tests.

Q: What are the memory specifications of each card?

A: The RTX 4090 D features 24 GB of GDDR6X memory on a 384-bit bus with 1.01 TB/s bandwidth. The RTX 4000 SFF has 20 GB of GDDR6 memory on a 160-bit bus with 280.0 GB/s bandwidth.

Q: Which card has a higher power consumption and physical footprint?

A: The RTX 4090 D has a TDP of 425 W, requires a 1x 16-pin power connector, and is a triple-slot card measuring 304 mm in length. The RTX 4000 SFF has a 70 W TDP, requires no power connectors, and is a dual-slot card measuring 168 mm in length.

Q: How do the nearest rivals compare for each card?

A: The RTX 4090 D trails the NVIDIA RTX PRO 5000 Blackwell by 2.2%, the A100 SXM4 80 GB by 3.1%, and the RTX 5000 Ada Generation by 3.6% in average score. The RTX 4000 SFF is nearly tied with the NVIDIA GB10 (0.3% behind), trails the AMD Radeon PRO W7700 by 1.6%, but leads the Tesla V100 SXM2 16 GB by 2.4% and the RTX A5500 Mobile by 2.8%.

Q: Which card is still in production?

A: The RTX 4000 SFF Ada Generation has an Active production status, while the RTX 4090 D is listed as End-of-life. The RTX 4090 D was released on 2023-12-27, and the RTX 4000 SFF was released on 2023-03-20.

Where Each One Wins

The RTX 4090 D wins decisively in every measured performance category. Its FP32 compute of 73.54 TFLOPS is nearly four times the 19.17 TFLOPS of the RTX 4000 SFF. The texture rate of 1,149.1 GTexel/s dwarfs the 299.5 GTexel/s of the smaller card, and the pixel rate of 443.5 GPixel/s is over four times the 99.84 GPixel/s of the RTX 4000 SFF. In the head-to-head Geekbench tests, the RTX 4090 D wins both OpenCL and Vulkan by margins exceeding 123%.

The RTX 4000 SFF wins in physical practicality. It is a dual-slot card with no power connectors, a 70 W TDP, and a suggested PSU of 250 W — versus the triple-slot RTX 4090 D with its 16-pin connector, 425 W TDP, and 800 W suggested PSU. The RTX 4000 SFF is also shorter at 168 mm versus 304 mm, and lower in height at 69 mm versus 137 mm. It offers four mini-DisplayPort 1.4a outputs, while the RTX 4090 D provides one HDMI 2.1 and three DisplayPort 1.4a outputs.

Architecture Differences

Both GPUs use the Ada Lovelace architecture on TSMC's 5 nm process, but they are built from different chips. The RTX 4090 D uses the AD102 chip with 76,300 million transistors on a 609 mm² die, achieving a transistor density of 125.3M per mm². The RTX 4000 SFF uses the AD104 chip with 35,800 million transistors on a 294 mm² die, for a density of 121.8M per mm².

The compute resources scale accordingly. The RTX 4090 D has 14,592 shading units, 456 TMUs, 176 ROPs, 114 RT cores, and 456 tensor cores. The RTX 4000 SFF has 6,144 shading units, 192 TMUs, 64 ROPs, 48 RT cores, and 192 tensor cores. Clock speeds also differ substantially: the RTX 4090 D runs at a 2280 MHz base and 2520 MHz boost, while the RTX 4000 SFF runs at a much lower 720 MHz base and 1560 MHz boost.

Memory architecture is another major split. The RTX 4090 D uses 24 GB of GDDR6X with a 384-bit bus, while the RTX 4000 SFF uses 20 GB of GDDR6 on a 160-bit bus. The memory clock difference is notable: 1313 MHz (21 Gbps effective) on the RTX 4090 D versus 1750 MHz (14 Gbps effective) on the RTX 4000 SFF, resulting in 1.01 TB/s versus 280.0 GB/s bandwidth.

Specification Differences

The specification sheets reveal few shared fields beyond the architecture and API support. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and both use PCIe 4.0 x16. The process node is identical at 5 nm from TSMC.

Beyond that, the differences are stark. The RTX 4090 D has a base clock of 2280 MHz and boost of 2520 MHz; the RTX 4000 SFF has 720 MHz and 1560 MHz respectively. Shading units are 14,592 versus 6,144. TMUs are 456 versus 192. ROPs are 176 versus 64. RT cores are 114 versus 48. Tensor cores are 456 versus 192. Pixel rate is 443.5 GPixel/s versus 99.84 GPixel/s. Texture rate is 1,149.1 GTexel/s versus 299.5 GTexel/s. FP32 and FP16 compute are both 73.54 TFLOPS versus 19.17 TFLOPS.

The power and physical specs diverge completely. The RTX 4090 D has a 425 W TDP, is triple-slot, uses a 16-pin connector, and suggests an 800 W PSU. The RTX 4000 SFF has a 70 W TDP, is dual-slot, uses no power connectors, and suggests a 250 W PSU. The RTX 4090 D is 304 mm long, 137 mm tall, and 61 mm wide. The RTX 4000 SFF is 168 mm long and 69 mm tall, with no width listed. The RTX 4090 D has a launch MSRP of 1,599 USD; the RTX 4000 SFF has no listed launch MSRP.

Head-to-Head Benchmarks

The only directly comparable benchmark results are the two Geekbench tests, and the RTX 4090 D dominates both. In Geekbench OpenCL, the RTX 4090 D scores 278,621, which is 123.2% higher than the RTX 4000 SFF's 124,812. In Geekbench Vulkan, the RTX 4090 D scores 246,941, a 125.8% improvement over the RTX 4000 SFF's 109,364. The RTX 4090 D wins both head-to-head matchups, giving it a 2–0 record in the wins tally.

These results are consistent with the raw specification gaps. The RTX 4090 D has 2.4 times the shading units, 2.4 times the TMUs, 2.8 times the ROPs, and 3.8 times the FP32 throughput of the RTX 4000 SFF. The memory bandwidth advantage is even more pronounced: 1.01 TB/s versus 280.0 GB/s, a 3.6-fold difference. The benchmark deltas of roughly 123–126% reflect the aggregate of these compute and memory advantages.

The competitive context also differs. The RTX 4090 D's average score of 178,050 places it just behind the RTX PRO 5000 Blackwell (182,109, delta -2.2%) and the A100 SXM4 80 GB (183,725, delta -3.1%). The RTX 4000 SFF's average of 117,088 places it essentially level with the NVIDIA GB10 (117,393, -0.3%) and slightly below the AMD Radeon PRO W7700 (118,976, -1.6%). The RTX 4000 SFF does beat the Tesla V100 SXM2 16 GB (114,395, +2.4%) and the RTX A5500 Mobile (113,944, +2.8%).

The Verdict

The data supports a clear split based on workload and physical constraints. The NVIDIA GeForce RTX 4090 D is the overwhelming performance winner, with 73.54 TFLOPS FP32, 24 GB of GDDR6X, and 1.01 TB/s bandwidth. Its average benchmark score of 178,050 places it in the 98th percentile, and it beats the RTX 4000 SFF by over 123% in both Geekbench OpenCL and Vulkan. Any workload that is compute-bound, memory-bandwidth-bound, or graphics-intensive will favor the RTX 4090 D without question.

The NVIDIA RTX 4000 SFF Ada Generation wins on integration. Its 70 W TDP, dual-slot profile, 168 mm length, and lack of power connectors make it suitable for small-form-factor systems where the RTX 4090 D's 425 W TDP, triple-slot width, and 304 mm length would be impossible to accommodate. Its 20 GB of GDDR6 memory still provides substantial capacity for workstation tasks, and its 95th percentile ranking shows it is no slouch. The RTX 4000 SFF is currently in production, while the RTX 4090 D is end-of-life.

Choose the RTX 4090 D if the chassis can handle it and raw performance is the sole criterion. Choose the RTX 4000 SFF if the system requires a compact, low-power card with no external power delivery, and if the 19.17 TFLOPS FP32 and 280.0 GB/s bandwidth are sufficient. The benchmark data shows the RTX 4090 D is the faster card by every measured metric, but the RTX 4000 SFF occupies a niche the RTX 4090 D physically cannot fill.