NVIDIA CMP 70HX vs NVIDIA RTX A4000 Comparison

The Verdict

The recorded benchmark data is unambiguous: the NVIDIA RTX A4000 wins both available head-to-head comparisons against the NVIDIA CMP 70HX. In Geekbench OpenCL, the RTX A4000 scores 105,739 versus 25,135 for the CMP 70HX, a delta of 76.2%. In Geekbench Vulkan, the RTX A4000 reaches 127,645 while the CMP 70HX manages 35,817, a delta of 71.9%. The database records zero wins for the CMP 70HX and two wins for the RTX A4000.

The RTX A4000 is the choice for anyone needing compute performance, display outputs, or modern PCIe connectivity. The CMP 70HX has no display outputs at all, making it unsuitable for any standard desktop workflow. Its PCIe 1.0 x4 interface also severely limits data transfer compared to the RTX A4000's PCIe 4.0 x16 connection. The CMP 70HX was designed for a single purpose, mining, and the database reflects that narrow specialization. The RTX A4000, by contrast, is a workstation card with 4x DisplayPort 1.4a outputs, and it dominates the compute benchmarks.

However, the CMP 70HX does hold one measurable advantage in the database: its average benchmark score of 30,476 places it in the 75th percentile of all GPUs, while the RTX A4000's average of 26,683 sits in the 72nd percentile. This is a narrow percentile gap, roughly three points, and it stems from the fact that the CMP 70HX's two benchmark results are closer to each other, while the RTX A4000's broader benchmark suite includes lower-scoring API tests. For pure average score, the CMP 70HX edges ahead, but for every direct comparison where both cards ran the same test, the RTX A4000 wins decisively.

Architecture Differences

Both cards share the same GA104 chip, the Ampere architecture, an 8 nm Samsung process, 17,400 million transistors, and a 392 mm² die size. The transistor density is identical at 44.4M per mm². Despite these commonalities, the two products diverge sharply in their configuration.

The RTX A4000 has 6,144 shading units, 192 texture mapping units, 96 ROPs, 48 RT cores, and 192 tensor cores. The CMP 70HX has 3,840 shading units, 120 TMUs, 64 ROPs, 30 RT cores, and 120 tensor cores. The RTX A4000 carries 60% more shading units, 60% more TMUs, 50% more ROPs, 60% more RT cores, and 60% more tensor cores. This is a substantial hardware advantage that directly explains the benchmark results.

Clock behavior also differs. The CMP 70HX has a base clock of 1365 MHz and a boost clock of 1395 MHz. The RTX A4000 has a much lower base clock of 735 MHz but a higher boost clock of 1560 MHz. The RTX A4000's boost clock is 165 MHz higher than the CMP 70HX's boost clock, and its boost window is far wider. The CMP 70HX's tight clock range suggests a power-constrained design, while the RTX A4000 can ramp much higher under load.

Memory configurations diverge as well. The CMP 70HX uses 8 GB of GDDR6X with a 256-bit bus and 608.3 GB/s of bandwidth. The RTX A4000 uses 16 GB of GDDR6 with the same 256-bit bus but 448.0 GB/s of bandwidth. The CMP 70HX has 160.3 GB/s more bandwidth, but half the capacity. The RTX A4000's memory clock is 1750 MHz (14 Gbps effective) versus 1188 MHz (19 Gbps effective) for the CMP 70HX. The GDDR6X on the CMP 70HX achieves higher effective data rates despite a lower physical clock.

The physical design differs completely. The CMP 70HX is dual-slot, uses a 1x 12-pin power connector, and has a suggested PSU of 200 W. The RTX A4000 is single-slot, uses a 1x 6-pin connector, and has a suggested PSU of 300 W. The RTX A4000 is also shorter at 241 mm (9.5 inches) versus 267 mm (10.5 inches) for the CMP 70HX. Both cards are 112 mm (4.4 inches) tall. The RTX A4000 has a listed TDP of 140 W, while the CMP 70HX has no TDP field recorded.

The bus interface tells a major story: the CMP 70HX runs on PCIe 1.0 x4, a legacy standard that severely limits host communication, while the RTX A4000 runs on PCIe 4.0 x16, offering far greater bandwidth for data transfer. The CMP 70HX has no display outputs; the RTX A4000 has four DisplayPort 1.4a outputs.

Head-to-Head Benchmarks

The database contains exactly two head-to-head comparisons, both Geekbench tests, and both favor the RTX A4000 by a wide margin.

In Geekbench OpenCL, the RTX A4000 scores 105,739 against the CMP 70HX's 25,135. The delta is 76.2%, meaning the RTX A4000 is roughly four times faster in this compute workload. This result aligns with the RTX A4000's 60% higher shading unit count and its higher boost clock. The CMP 70HX's higher memory bandwidth, 608.3 GB/s versus 448.0 GB/s, does not compensate for its much smaller compute configuration.

In Geekbench Vulkan, the RTX A4000 scores 127,645 against 35,817 for the CMP 70HX. The delta is 71.9%. The absolute scores are higher for both cards in Vulkan than in OpenCL, but the relative gap remains nearly as large. The RTX A4000's advantage in Vulkan is slightly smaller in percentage terms than in OpenCL, but still dominant.

Looking at the broader database context, the CMP 70HX's nearest rivals include the NVIDIA Tesla M60 at 30,490 (0% delta), the AMD Radeon RX 6700 at 30,433 (0.1% delta), the AMD Radeon RX 6800 at 30,095 (1.3% delta), and the NVIDIA GeForce RTX 3070 Ti at 29,945 (1.8% delta). The CMP 70HX essentially sits in a cluster with these cards, all within roughly 2% of each other.

The RTX A4000's nearest rivals are quite different: the AMD Radeon RX 5700 XT 50th Anniversary at 26,553 (0.5% delta), the NVIDIA GeForce MX550 at 26,421 (1% delta), the AMD Radeon 860M at 26,401 (1.1% delta), and the NVIDIA GeForce RTX 5060 at 26,331 (1.3% delta). The RTX A4000's average score is lower than the CMP 70HX's, but its head-to-head results against the CMP 70HX are overwhelmingly superior. This discrepancy comes from the RTX A4000's benchmark suite including several Passmark tests with low scores, such as Passmark DirectX 9 at 240, Passmark DirectX 11 at 158, and Passmark DirectX 10 at 126, which drag down its average.

FAQ

Q: Which card has a higher average benchmark score?

A: The NVIDIA CMP 70HX has an average benchmark score of 30,476, while the NVIDIA RTX A4000 has an average of 26,683. The CMP 70HX sits in the 75th percentile of all GPUs, three points above the RTX A4000's 72nd percentile.

Q: How much faster is the RTX A4000 in Geekbench OpenCL?

A: The RTX A4000 scores 105,739 in Geekbench OpenCL, which is 76.2% higher than the CMP 70HX's 25,135.

Q: Does the CMP 70HX have any display outputs?

A: No. The CMP 70HX has no display outputs at all. The RTX A4000 has 4x DisplayPort 1.4a outputs.

Q: What memory configurations do the two cards use?

A: The CMP 70HX uses 8 GB of GDDR6X with a 256-bit bus and 608.3 GB/s bandwidth. The RTX A4000 uses 16 GB of GDDR6 with a 256-bit bus and 448.0 GB/s bandwidth.

Q: Which card has more RT cores and tensor cores?

A: The RTX A4000 has 48 RT cores and 192 tensor cores. The CMP 70HX has 30 RT cores and 120 tensor cores. The RTX A4000 has 60% more of each.

Q: What is the bus interface difference?

A: The CMP 70HX uses PCIe 1.0 x4, while the RTX A4000 uses PCIe 4.0 x16. This is a substantial difference in host communication bandwidth.

Where Each One Wins

The RTX A4000 wins every workload where the two cards were directly compared. In compute-oriented benchmarks, Geekbench OpenCL and Vulkan, its advantage is massive, between 71.9% and 76.2%. This makes it the clear choice for general-purpose GPU compute, rendering, AI inference, or any task that exercises shading units and tensor cores. Its 16 GB of memory provides double the capacity of the CMP 70HX, which matters for larger datasets and higher-resolution textures. Its 4x DisplayPort 1.4a outputs make it usable in multi-monitor workstation environments. Its single-slot design and 140 W TDP allow it to fit in compact chassis that cannot accommodate a dual-slot card.

The CMP 70HX wins in one narrow sense: its average benchmark score is higher, 30,476 versus 26,683, and it sits in a higher percentile. This is driven by its two benchmark results being relatively consistent, rather than by outperforming the RTX A4000 in any shared test. Its memory bandwidth of 608.3 GB/s is also higher than the RTX A4000's 448.0 GB/s, which could theoretically benefit bandwidth-bound workloads, but the database shows no benchmark where this advantage materializes against the RTX A4000. The CMP 70HX has no display outputs, so it cannot drive a monitor. Its PCIe 1.0 x4 interface would bottleneck data transfer for most modern applications.

For gaming, the RTX A4000 is the only viable option because the CMP 70HX cannot output video. For compute, the RTX A4000's benchmark results are overwhelmingly superior. For any task requiring a GPU to interface with a system over a modern PCIe bus, the RTX A4000 wins. The CMP 70HX's only theoretical advantage is its higher bandwidth and its slightly higher average score, but neither translates into a head-to-head win in the recorded data.

Specification Differences

The two cards share the same GA104 chip, Ampere architecture, 8 nm Samsung process, 17,400 million transistors, 392 mm² die size, and 44.4M per mm² transistor density. They differ in nearly every other measurable field.

The CMP 70HX has a base clock of 1365 MHz and a boost clock of 1395 MHz. The RTX A4000 has a base clock of 735 MHz and a boost clock of 1560 MHz. The RTX A4000's boost clock is 165 MHz higher.

The CMP 70HX has 3,840 shading units, 120 TMUs, 64 ROPs, 30 RT cores, and 120 tensor cores. The RTX A4000 has 6,144 shading units, 192 TMUs, 96 ROPs, 48 RT cores, and 192 tensor cores. The RTX A4000 has 60% more shading units, TMUs, RT cores, and tensor cores, and 50% more ROPs.

Memory differs in size, type, and bandwidth. The CMP 70HX has 8 GB of GDDR6X with a 256-bit bus and 608.3 GB/s bandwidth. The RTX A4000 has 16 GB of GDDR6 with a 256-bit bus and 448.0 GB/s bandwidth. The CMP 70HX has 160.3 GB/s more bandwidth but half the capacity.

Pixel rate and texture rate favor the RTX A4000. The CMP 70HX achieves 89.28 GPixel/s and 167.4 GTexel/s. The RTX A4000 achieves 149.8 GPixel/s and 299.5 GTexel/s. FP32 and FP16 performance are identical within each card: the CMP 70HX delivers 10.71 TFLOPS in both, while the RTX A4000 delivers 19.17 TFLOPS in both.

The CMP 70HX has no TDP recorded, while the RTX A4000 has a TDP of 140 W. The CMP 70HX is dual-slot with a 1x 12-pin connector and a 200 W suggested PSU. The RTX A4000 is single-slot with a 1x 6-pin connector and a 300 W suggested PSU. The CMP 70HX is 267 mm long (10.5 inches); the RTX A4000 is 241 mm long (9.5 inches). Both are 112 mm tall (4.4 inches).

The bus interface is a major differentiator: PCIe 1.0 x4 for the CMP 70HX versus PCIe 4.0 x16 for the RTX A4000. Display outputs are absent on the CMP 70HX, while the RTX A4000 has 4x DisplayPort 1.4a. Both share the same API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both are end-of-life products. The RTX A4000 has a recorded release date of 2021-04-11, while the CMP 70HX has no release date in the database.