NVIDIA RTX 4000 SFF Ada Generation vs NVIDIA RTX 6000D Comparison

The NVIDIA RTX 6000D and NVIDIA RTX 4000 SFF Ada Generation occupy opposite ends of the professional GPU spectrum, one a monolithic compute monster and the other a compact, power-efficient solution. The data in the FACT PACK shows a decisive performance hierarchy, but the choice between them is not simply about raw speed. It is a question of workload requirements, physical constraints, and how much compute density is truly needed. The RTX 6000D is a new Blackwell 2.0 architecture part, while the RTX 4000 SFF is an older Ada Lovelace design, and their benchmark scores and specifications reflect a generational and physical divide.

Head-to-Head Benchmarks

The head-to-head data provides only one comparison point, but it is a stark one. In the Geekbench OpenCL test, the NVIDIA RTX 6000D scored 388,405 points, while the NVIDIA RTX 4000 SFF Ada Generation scored 124,812 points. This results in a delta of 211.2% in favor of the RTX 6000D, meaning it is more than three times as fast in this raw compute workload. This is the single largest win in the comparison, and it establishes a clear performance gulf between the two cards.

The RTX 6000D’s average benchmark score of 195,964 also places it significantly higher in the overall database. Its nearest rival, the NVIDIA Tesla V100S PCIe 32 GB, scores 194,415, which is 0.8% lower. The RTX 6000D is also 4.7% ahead of the NVIDIA A100 SXM4 40 GB and 6.1% ahead of the NVIDIA RTX 5000 Ada Generation. Interestingly, it trails the NVIDIA A100 PCIe 80 GB by 5.4%, showing that even a flagship Blackwell part can face stiff competition from high-memory Ampere data center parts. Its percentile rank of 98 indicates it outperforms the vast majority of all GPUs in the database.

The RTX 4000 SFF, by contrast, has an average score of 117,088. Its closest rival is the NVIDIA GB10, which scores 117,393, a delta of -0.3%, meaning the GB10 is marginally ahead. The RTX 4000 SFF is 1.6% ahead of the AMD Radeon PRO W7700 and 2.4% ahead of the NVIDIA Tesla V100 SXM2 16 GB. It also edges out the NVIDIA RTX A5500 Mobile by 2.8%. While these deltas are small, they place the RTX 4000 SFF in the 95th percentile of all GPUs, confirming that it is still a high-performing card in its own right, but its performance class is an order of magnitude below the RTX 6000D. The 211.2% delta in the sole head-to-head test is a clear indicator that these are not competing for the same users.

FAQ

Q: How much faster is the NVIDIA RTX 6000D than the RTX 4000 SFF Ada Generation in the available benchmark?

A: In the Geekbench OpenCL test, the RTX 6000D scores 388,405 versus 124,812 for the RTX 4000 SFF, making it 211.2% faster in that specific workload.

Q: What is the difference in memory capacity and type between the two cards?

A: The RTX 6000D comes with 84 GB of GDDR7 memory on a 448-bit bus, providing 1.40 TB/s of bandwidth. The RTX 4000 SFF has 20 GB of GDDR6 memory on a 160-bit bus, delivering 280.0 GB/s of bandwidth.

Q: Which card has a higher transistor density despite its size?

A: The RTX 6000D, built on the GB202 chip, has a density of 122.9M transistors per mm². The RTX 4000 SFF’s AD104 chip has a slightly lower density of 121.8M transistors per mm², despite being a much smaller and simpler chip.

Q: Do these cards support the same graphics APIs?

A: Yes, both the RTX 6000D and the RTX 4000 SFF support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the physical dimensions of each card?

A: The RTX 6000D measures 304 mm in length, 137 mm in height, and 40 mm in width. The RTX 4000 SFF is considerably smaller at 168 mm in length and 69 mm in height, with no width specified in the data.

Q: What is the difference in power connector requirements?

A: The RTX 6000D uses a single 16-pin power connector and has a suggested PSU of 1000 W. The RTX 4000 SFF requires no power connectors and has a suggested PSU of only 250 W.

Architecture Differences

The two cards are built on different architectures and chips, representing separate generations of NVIDIA’s professional line. The RTX 6000D uses the GB202 chip, based on the Blackwell 2.0 architecture, and is part of the Blackwell PRO W (x000) generation. The RTX 4000 SFF uses the AD104 chip, based on the older Ada Lovelace architecture, from the Workstation Ada generation. Both are manufactured on a 5 nm process at TSMC, but the physical scale is very different.

The RTX 6000D’s GB202 die is immense, measuring 750 mm² and containing 92,200 million transistors. In contrast, the RTX 4000 SFF’s AD104 die is 294 mm² with 35,800 million transistors. This size difference directly translates to a massive disparity in compute resources. The RTX 6000D has 19,968 shading units, 624 TMUs, 192 ROPs, 156 RT cores, and 624 tensor cores. The RTX 4000 SFF is configured with 6,144 shading units, 192 TMUs, 64 ROPs, 48 RT cores, and 192 tensor cores. The RTX 6000D has more than three times the shading units and RT cores, and more than twice the ROPs of the smaller card.

Clock speeds also differ significantly. The RTX 6000D runs at a base clock of 1992 MHz and a boost clock of 2430 MHz. The RTX 4000 SFF has a much lower base clock of 720 MHz and a boost clock of 1560 MHz. The memory subsystem is equally divergent: the RTX 6000D uses GDDR7 memory at 25 Gbps effective, while the RTX 4000 SFF uses slower GDDR6 at 14 Gbps effective. The RTX 6000D also offers a newer PCIe 5.0 x16 interface, whereas the RTX 4000 SFF is limited to PCIe 4.0 x16. Display outputs also differ, with the RTX 6000D featuring four DisplayPort 2.1b connectors, while the RTX 4000 SFF has four mini-DisplayPort 1.4a connectors.

The Verdict

The data presents a clear verdict based on performance density. The NVIDIA RTX 6000D is unequivocally the superior performer, with an average benchmark score of 195,964 and a 211.2% lead in the sole head-to-head test. Its raw compute power, massive 84 GB memory pool, and high-bandwidth GDDR7 interface classify it as a top-tier compute accelerator, sitting in the 98th percentile of all GPUs. Any workload that can utilize its 97.04 TFLOPS of FP32 performance and 1.40 TB/s of bandwidth will be dramatically faster than on the RTX 4000 SFF.

However, the RTX 4000 SFF is not without its own distinct advantages, which are entirely centered on its physical and power profile. It consumes only 70 W compared to the RTX 6000D’s 600 W, requires no power connectors, and can run with a 250 W suggested PSU instead of a 1000 W unit. Its dimensions of 168 mm in length and 69 mm in height are roughly half the length of the RTX 6000D, making it suitable for space-constrained chassis. For users with a small form factor workstation or those with strict power budgets, the RTX 4000 SFF’s 19.17 TFLOPS of FP32 performance and 280.0 GB/s of bandwidth may be sufficient, and its 95th percentile standing shows it is still a capable card.

For users who prioritize raw compute, memory capacity, or are running AI training, large dataset rendering, or multi-GPU simulation tasks, the RTX 6000D is the only option. Its 6.1% lead over the RTX 5000 Ada Generation and 4.7% lead over the A100 SXM4 solidify it as a high-end choice. Conversely, for a professional needing a quiet, low-power, and compact card for CAD, light rendering, or as a secondary output card, the RTX 4000 SFF offers a balanced feature set. The RTX 4000 SFF is the logical pick for density-sensitive environments, while the RTX 6000D is for raw performance at any cost.

Specification Differences

The following specifications differ between the NVIDIA RTX 6000D and the NVIDIA RTX 4000 SFF Ada Generation, based solely on the FACT PACK data.

• Architecture: The RTX 6000D uses Blackwell 2.0, while the RTX 4000 SFF uses Ada Lovelace.
• Chip: The RTX 6000D is built on the GB202 chip, whereas the RTX 4000 SFF uses the AD104 chip.
• Generation: The RTX 6000D is from the Blackwell PRO W (x000) generation; the RTX 4000 SFF is from the Workstation Ada (x000A) generation.
• Transistors: The RTX 6000D has 92,200 million transistors, compared to 35,800 million in the RTX 4000 SFF.
• Die Size: The RTX 6000D’s die is 750 mm², significantly larger than the RTX 4000 SFF’s 294 mm².
• Base Clock: The RTX 6000D has a base clock of 1992 MHz, versus 720 MHz for the RTX 4000 SFF.
• Boost Clock: The RTX 6000D boosts up to 2430 MHz, while the RTX 4000 SFF boosts to 1560 MHz.
• Memory Size: The RTX 6000D has 84 GB, while the RTX 4000 SFF has 20 GB.
• Memory Type: The RTX 6000D uses GDDR7, while the RTX 4000 SFF uses GDDR6.
• Memory Bus Width: The RTX 6000D has a 448-bit bus, while the RTX 4000 SFF has a 160-bit bus.
• Memory Bandwidth: The RTX 6000D provides 1.40 TB/s, versus 280.0 GB/s for the RTX 4000 SFF.
• Shading Units: The RTX 6000D has 19,968, while the RTX 4000 SFF has 6,144.
• TMUs: The RTX 6000D has 624, while the RTX 4000 SFF has 192.
• ROPs: The RTX 6000D has 192, while the RTX 4000 SFF has 64.
• RT Cores: The RTX 6000D has 156, while the RTX 4000 SFF has 48.
• Tensor Cores: The RTX 6000D has 624, while the RTX 4000 SFF has 192.
• Pixel Rate: The RTX 6000D achieves 466.6 GPixel/s, compared to 99.84 GPixel/s for the RTX 4000 SFF.
• Texture Rate: The RTX 6000D achieves 1,516.3 GTexel/s, compared to 299.5 GTexel/s for the RTX 4000 SFF.
• FP32 Performance: The RTX 6000D has 97.04 TFLOPS, versus 19.17 TFLOPS for the RTX 4000 SFF.
• TDP: The RTX 6000D has a TDP of 600 W, while the RTX 4000 SFF has a TDP of 70 W.
• Power Connectors: The RTX 6000D requires a 1x 16-pin connector; the RTX 4000 SFF has none.
• Suggested PSU: The RTX 6000D recommends a 1000 W PSU, while the RTX 4000 SFF recommends a 250 W PSU.
• Bus Interface: The RTX 6000D uses PCIe 5.0 x16, while the RTX 4000 SFF uses PCIe 4.0 x16.
• Display Outputs: The RTX 6000D has 4x DisplayPort 2.1b, while the RTX 4000 SFF has 4x mini-DisplayPort 1.4a.
• Dimensions: The RTX 6000D is 304 mm long and 137 mm high; the RTX 4000 SFF is 168 mm long and 69 mm high.
• Release Date: The RTX 6000D was released on 2025-07-13, while the RTX 4000 SFF was released on 2023-03-20.
• Predecessor: The RTX 6000D’s predecessor is Workstation Ada; the RTX 4000 SFF’s predecessor is Workstation Ampere.
• Successor: The RTX 6000D has no successor listed; the RTX 4000 SFF’s successor is Blackwell PRO W.
• Launch MSRP: The RTX 6000D has a launch MSRP of 8,565 USD; the RTX 4000 SFF has no launch MSRP listed.