NVIDIA CMP 40HX vs NVIDIA RTX 4000 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the NVIDIA RTX 4000 Ada Generation and the NVIDIA CMP 40HX across both benchmark tests. In Geekbench OpenCL, the RTX 4000 Ada Generation scores 146,593, while the CMP 40HX trails at 93,395. That translates to a 57% advantage for the Ada card, making it the clear winner in compute-heavy workloads. The Vulkan results tell a similar story: the RTX 4000 Ada Generation reaches 123,842, while the CMP 40HX manages 77,879, a 59% lead for the Ada part. Both tests consistently favor the RTX 4000 Ada Generation, and the margin is substantial enough to define the entire comparison.

When placed against its own nearest rivals, the RTX 4000 Ada Generation posts an average benchmark score of 135,218, which places it within 0.1% of the NVIDIA A10M (135,230) and 0.4% of the AMD Radeon PRO W6800X Duo (135,774). The AMD Radeon PRO W6800 sits at 135,396, just 0.1% ahead of the Ada card. These are tight margins, indicating that the RTX 4000 Ada Generation is competitive within its workstation-class segment, though not the absolute leader. Its percentile ranking at 95 among all GPUs reflects strong overall positioning.

The CMP 40HX, by contrast, records an average benchmark score of 85,637, placing it in the 93rd percentile. Its nearest rivals include the AMD Radeon PRO W7600 at 87,108, which is 1.7% ahead, and the NVIDIA Quadro GP100 at 87,445, which is 2.1% ahead. The AMD Radeon PRO W6600 trails the CMP 40HX by 4.4%, and the AMD Radeon Pro Vega 64X is 5.8% behind. While the CMP 40HX is not the weakest card in its immediate vicinity, it operates in a far lower performance tier than the RTX 4000 Ada Generation. The head-to-head delta of 57% and 59% across the two tests underscores that these cards are not competing in the same class.

Where Each One Wins

The RTX 4000 Ada Generation wins in every recorded benchmark category, so its strengths are broad rather than niche. In OpenCL, its 57% lead indicates a strong advantage in general-purpose compute tasks, which often include rendering, simulation, and data processing. The Vulkan result, showing a 59% gap, points to similar superiority in graphics and compute APIs used by modern applications. The data suggests that the RTX 4000 Ada Generation is better suited for professional workloads that demand high throughput, such as 3D modeling, scientific computing, or AI-assisted rendering, given its high FP32 and FP16 performance.

The CMP 40HX, on the other hand, does not win any of the recorded benchmarks. Its strengths, if any, must be inferred from its design rather than its test scores. It was built for mining GPUs, with no display outputs, which means it is not intended for interactive use. Its lower scores in OpenCL and Vulkan reflect a fundamental performance deficit, but its architecture includes features like a higher number of tensor cores relative to shading units, which may have been aimed at specific compute patterns. However, the recorded data does not show any test where the CMP 40HX outperforms the RTX 4000 Ada Generation, so from a benchmark perspective, the Ada card is the superior choice for any measurable workload.

Architecture Differences

The two cards come from different generations and are built on different process nodes. The RTX 4000 Ada Generation uses the AD104 chip based on Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. It contains 35,800 million transistors on a 294 mm² die, giving a transistor density of 121.8 million per mm². The CMP 40HX uses the TU106 chip based on Turing architecture, fabricated on a 12 nm process, also at TSMC. It contains 10,800 million transistors on a 445 mm² die, with a transistor density of 24.3 million per mm². The Ada chip is much denser, which contributes to its higher performance per watt and per area.

Memory configurations differ significantly. The RTX 4000 Ada Generation has 20 GB of GDDR6 memory on a 160-bit bus, delivering 360.0 GB/s of bandwidth. The CMP 40HX has 8 GB of GDDR6 memory on a 256-bit bus, delivering 448.0 GB/s of bandwidth. Despite the CMP 40HX having a wider bus and higher raw bandwidth, the Ada card compensates with a much higher memory clock: 2250 MHz (18 Gbps effective) versus 1750 MHz (14 Gbps effective). The Ada card also has more memory capacity, which is critical for large datasets and high-resolution textures.

Compute resources are heavily skewed toward the RTX 4000 Ada Generation. It has 6,144 shading units, 192 texture mapping units, and 64 raster output units, compared to the CMP 40HX's 2,304 shading units, 144 TMUs, and 64 ROPs. The Ada card also has 48 ray tracing cores and 192 tensor cores, while the CMP 40HX has 36 ray tracing cores and 288 tensor cores. Although the CMP 40HX has more tensor cores, the Ada card's newer architecture likely makes each core more efficient. The FP32 performance is 26.73 TFLOPS for the Ada card versus 7.603 TFLOPS for the CMP 40HX, a more than threefold difference. FP16 performance is 26.73 TFLOPS (1:1) for the Ada card, while the CMP 40HX reaches 15.21 TFLOPS (2:1), so the Ada card still leads in half-precision throughput.

Power and physical characteristics also set them apart. The RTX 4000 Ada Generation has a TDP of 130 W, is single-slot, and uses a 1x 16-pin power connector with a suggested PSU of 300 W. The CMP 40HX has a TDP of 185 W, is dual-slot, uses a 1x 8-pin connector, and requires a 450 W PSU. The Ada card is more power-efficient, which is consistent with its newer process node. The Ada card has four DisplayPort 1.4a outputs, while the CMP 40HX has no display outputs, reinforcing its mining-only purpose. The bus interface also differs: the Ada card uses PCIe 4.0 x16, while the CMP 40HX uses PCIe 1.0 x4, a substantial limitation for data transfer.

The Verdict

The data is unambiguous. The NVIDIA RTX 4000 Ada Generation outperforms the NVIDIA CMP 40HX by 57% in OpenCL and 59% in Vulkan. Its average benchmark score of 135,218 versus 85,637 represents a 58% overall advantage. For any professional application that relies on compute performance, the RTX 4000 Ada Generation is the appropriate choice. Its 20 GB memory capacity, higher clock speeds, and modern Ada Lovelace architecture make it suitable for rendering, simulation, and AI workloads. The CMP 40HX, with its 8 GB memory, lower compute throughput, and lack of display outputs, is not viable for general-purpose or workstation use. Its only plausible role is in specialized compute environments that do not require display output, but even there, the RTX 4000 Ada Generation delivers superior results in the recorded tests.

The RTX 4000 Ada Generation also holds its own against its nearest rivals, sitting within 0.9% of the AMD Radeon PRO V620 and within 0.4% of the AMD Radeon PRO W6800X Duo. It is a competitive workstation card, placing in the 95th percentile of all GPUs. The CMP 40HX, while in the 93rd percentile, is closer to lower-tier workstation cards like the AMD Radeon PRO W6600. Users seeking maximum performance in compute-heavy tasks should clearly favor the RTX 4000 Ada Generation. The CMP 40HX is end-of-life, whereas the RTX 4000 Ada Generation is still active, which further solidifies the recommendation.

FAQ

Q: Which card has a higher OpenCL benchmark score?

A: The NVIDIA RTX 4000 Ada Generation scores 146,593 in Geekbench OpenCL, while the NVIDIA CMP 40HX scores 93,395, making the Ada card 57% faster.

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

A: The RTX 4000 Ada Generation has 20 GB of GDDR6 memory, while the CMP 40HX has 8 GB of GDDR6 memory.

Q: Which card has a higher memory bandwidth?

A: The CMP 40HX has 448.0 GB/s of memory bandwidth due to its 256-bit bus, while the RTX 4000 Ada Generation has 360.0 GB/s on a 160-bit bus.

Q: Does the CMP 40HX support display outputs?

A: No, the CMP 40HX has no display outputs, whereas the RTX 4000 Ada Generation has four DisplayPort 1.4a outputs.

Q: What is the FP32 performance of each card?

A: The RTX 4000 Ada Generation delivers 26.73 TFLOPS of FP32 performance, while the CMP 40HX delivers 7.603 TFLOPS.

Q: Which card is more power-efficient?

A: The RTX 4000 Ada Generation has a TDP of 130 W and a suggested PSU of 300 W, while the CMP 40HX has a TDP of 185 W and a suggested PSU of 450 W, indicating the Ada card consumes less power for higher performance.