NVIDIA RTX 4000 Ada Generation vs NVIDIA RTX 6000D Comparison

NVIDIA's RTX 6000D and RTX 4000 Ada Generation target different tiers of the professional workstation market, and the benchmark data confirms a wide gulf in raw performance. The RTX 6000D, built on the newer Blackwell 2.0 architecture, delivers a commanding lead in compute workloads, while the RTX 4000 Ada Generation offers a more compact, lower-power alternative. This analysis breaks down the head-to-head results, architecture differences, and practical implications based strictly on the provided data.

Head-to-Head Benchmarks

The single shared benchmark between the two cards is Geekbench OpenCL, and the results are decisive. The RTX 6000D scores 388,405 points, while the RTX 4000 Ada Generation scores 146,593 points. This translates to a 165% delta in favor of the RTX 6000D, making it the winner in the only direct comparison available. This is not a marginal victory; the RTX 6000D more than doubles the OpenCL compute output of the smaller card.

Looking at the broader context via average benchmark scores, the gap remains substantial. The RTX 6000D posts an average benchmark score of 195,964, placing it in the 98th percentile of all GPUs. The RTX 4000 Ada Generation, by contrast, averages 135,218 and sits in the 95th percentile. While both are high-performing cards, the RTX 6000D's lead is roughly 45% in average score, a significant margin that reflects its larger silicon and higher power envelope.

The RTX 6000D also has a second benchmark result, 3DMark Steel Nomad DX12, where it scores 3,522. The RTX 4000 Ada Generation has no comparable result in this test, so no direct comparison is possible. However, the RTX 6000D's nearest rivals in average score provide context: it is only 0.8% ahead of the Tesla V100S PCIe 32 GB and 4.7% ahead of the A100 SXM4 40 GB, but it trails the A100 PCIe 80 GB by -5.4% and beats the RTX 5000 Ada Generation by 6.1%. For the RTX 4000 Ada Generation, its nearest rivals are extremely close: it is effectively tied with the NVIDIA A10M (deltaPct 0), and slightly behind the AMD Radeon PRO W6800 (-0.1%), the Radeon Pro W6800X Duo (-0.4%), and the Radeon PRO V620 (-0.9%). The data shows that while the RTX 4000 Ada Generation competes in a tight cluster, the RTX 6000D operates in a higher performance tier altogether.

Architecture Differences

The two cards are built on entirely different architectures and process generations. The RTX 6000D uses the GB202 chip based on Blackwell 2.0, fabricated on a 5 nm process at TSMC. It packs 92,200 million transistors on a 750 mm² die, yielding a transistor density of 122.9M / mm². The RTX 4000 Ada Generation uses the AD104 chip based on Ada Lovelace, also on a 5 nm TSMC process, but with only 35,800 million transistors on a 294 mm² die, for a density of 121.8M / mm². The densities are nearly identical, but the RTX 6000D's die is more than twice the size, accounting for its massive resource advantage.

The compute resources differ by a factor of roughly three. The RTX 6000D features 19,968 shading units, 624 texture mapping units (TMUs), and 192 raster operation units (ROPs). It also includes 156 RT cores and 624 tensor cores. The RTX 4000 Ada Generation has 6,144 shading units, 192 TMUs, 64 ROPs, 48 RT cores, and 192 tensor cores. This translates to a theoretical FP32 performance of 97.04 TFLOPS for the RTX 6000D versus 26.73 TFLOPS for the RTX 4000 Ada Generation, with both offering a 1:1 ratio for FP16. The pixel rate is 466.6 GPixel/s versus 139.2 GPixel/s, and the texture rate is 1,516.3 GTexel/s versus 417.6 GTexel/s. Every metric points to the RTX 6000D having roughly 3.6x the raw throughput of its smaller sibling.

Memory subsystems are also starkly different. The RTX 6000D ships with 84 GB of GDDR7 memory on a 448-bit bus, delivering 1.40 TB/s of bandwidth. The RTX 4000 Ada Generation has 20 GB of GDDR6 on a 160-bit bus, providing 360.0 GB/s. The RTX 6000D's memory clock runs at 1560 MHz (25 Gbps effective), while the RTX 4000 Ada Generation runs at 2250 MHz (18 Gbps effective). The bus width difference is the primary driver of the bandwidth disparity, making the RTX 6000D far better suited for data-heavy workloads. Additionally, the RTX 6000D supports PCIe 5.0 x16, whereas the RTX 4000 Ada Generation uses PCIe 4.0 x16, doubling the theoretical host interface bandwidth.

The Verdict

From the data, the RTX 6000D is the clear performance leader for compute-intensive tasks. Its 165% advantage in Geekbench OpenCL and its higher average benchmark score place it in a different class. The RTX 4000 Ada Generation, while still a capable GPU at the 95th percentile, is best suited for scenarios where its smaller footprint and lower power draw are critical. The RTX 6000D is a dual-slot card with a 600 W TDP and a suggested PSU of 1000 W, while the RTX 4000 Ada Generation is a single-slot card with a 130 W TDP and a 300 W suggested PSU. This makes the RTX 4000 Ada Generation far easier to integrate into dense or power-constrained systems.

In terms of display outputs, the RTX 6000D offers 4x DisplayPort 2.1b, while the RTX 4000 Ada Generation offers 4x DisplayPort 1.4a. The newer DisplayPort version on the RTX 6000D supports higher refresh rates and resolutions, which matters for visualization workloads. The RTX 6000D is also physically larger at 304 mm in length versus 245 mm for the RTX 4000 Ada Generation, so chassis compatibility is a consideration. The RTX 6000D was released on 2025-07-13, while the RTX 4000 Ada Generation came out earlier on 2023-08-08. The RTX 6000D has a launch MSRP of 8,565 USD.

Specification Differences

The two cards differ across nearly every core specification. The most significant gaps are in memory capacity (84 GB vs 20 GB), memory type (GDDR7 vs GDDR6), and memory bandwidth (1.40 TB/s vs 360.0 GB/s). The RTX 6000D's bus width is 448-bit versus 160-bit on the RTX 4000 Ada Generation. Clock speeds also differ: the RTX 6000D boosts to 2430 MHz from a base of 1992 MHz, while the RTX 4000 Ada Generation boosts to 2175 MHz from 1500 MHz. The RTX 6000D has a higher boost clock, but its advantage comes primarily from the sheer number of execution units.

The power and physical specifications diverge sharply. The RTX 6000D has a 600 W TDP, is dual-slot, and requires a 1000 W PSU, while the RTX 4000 Ada Generation has a 130 W TDP, is single-slot, and needs only a 300 W PSU. Both use a 1x 16-pin power connector. The RTX 6000D is larger in every dimension: 304 mm long, 137 mm high, and 40 mm wide, versus 245 mm long and 112 mm high for the RTX 4000 Ada Generation (width not specified). The process node is the same (5 nm TSMC), but the die sizes differ massively (750 mm² vs 294 mm²). The transistor counts are 92,200 million versus 35,800 million. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

FAQ

Q: Which card has a higher Geekbench OpenCL score?

A: The NVIDIA RTX 6000D scores 388,405 compared to the RTX 4000 Ada Generation's 146,593, giving the RTX 6000D a 165% lead in this benchmark.

Q: How much memory bandwidth does each card offer?

A: The RTX 6000D provides 1.40 TB/s of bandwidth via its 448-bit bus and GDDR7 memory. The RTX 4000 Ada Generation provides 360.0 GB/s via a 160-bit bus and GDDR6 memory.

Q: What are the power consumption differences?

A: The RTX 6000D has a 600 W TDP and requires a 1000 W suggested PSU. The RTX 4000 Ada Generation has a 130 W TDP and requires a 300 W suggested PSU.

Q: Do both cards support the same PCIe interface?

A: No. The RTX 6000D uses PCIe 5.0 x16, while the RTX 4000 Ada Generation uses PCIe 4.0 x16.

Q: Which card has more RT and tensor cores?

A: The RTX 6000D has 156 RT cores and 624 tensor cores. The RTX 4000 Ada Generation has 48 RT cores and 192 tensor cores.

Q: What is the average benchmark score for each, and how do they rank?

A: The RTX 6000D has an average score of 195,964, ranking in the 98th percentile. The RTX 4000 Ada Generation has an average score of 135,218, ranking in the 95th percentile.

Where Each One Wins

The RTX 6000D wins in every compute-heavy scenario. Its 165% lead in OpenCL and its 6.1% advantage over the RTX 5000 Ada Generation indicate it is designed for large-scale rendering, AI training, and scientific simulation. The 84 GB memory capacity and 1.40 TB/s bandwidth make it suitable for massive datasets that would otherwise spill into system RAM. The higher FP32 throughput (97.04 TFLOPS) and the newer DisplayPort 2.1b outputs also favor it for high-resolution visualization and multi-display setups.

The RTX 4000 Ada Generation wins in physical integration and efficiency. Its single-slot design and 130 W TDP allow it to fit into blade servers or compact workstations where space and cooling are limited. Its 20 GB memory and 360.0 GB/s bandwidth are still sufficient for mid-range 3D modeling, CAD, and light video editing. The 245 mm length is easier to accommodate in smaller chassis. While it trails the RTX 6000D significantly in raw performance, it competes closely with the NVIDIA A10M (deltaPct 0) and AMD Radeon PRO W6800 (-0.1%), making it a strong choice for mainstream professional workloads where the RTX 6000D's power and size are prohibitive.