NVIDIA CMP 70HX vs NVIDIA GeForce RTX 4070 Comparison

Head-to-Head Benchmarks

The database records only two common benchmark results for these two cards, and the outcome is decisively one-sided. The NVIDIA GeForce RTX 4070 wins both recorded tests, with the NVIDIA CMP 70HX failing to claim a single victory in the head-to-head comparison.

In Geekbench OpenCL, the RTX 4070 scores 154,858 points against the CMP 70HX's 25,135 points. That is a 516.1% advantage for the Ada Lovelace card. In Geekbench Vulkan, the gap narrows somewhat but remains enormous: the RTX 4070 posts 174,152 points versus 35,817 points for the CMP 70HX, a 386.2% lead. These are not marginal differences; the RTX 4070 is operating in a completely different performance tier.

Looking at aggregate scores, the RTX 4070's average benchmark score of 37,648 places it at the 81st percentile of all GPUs in the database. The CMP 70HX averages 30,476, which sits at the 75th percentile. The 7,172-point gap in the average translates to a substantial real-world difference across the entire benchmark suite.

The nearest rival data provides context for each card's standing. The RTX 4070 is only 0.1% ahead of the NVIDIA Tesla P4 (37,628 average) and 0.4% ahead of the AMD Radeon RX Vega 56 (37,507). It trails the NVIDIA GeForce RTX 4080 Mobile by 1.3% (38,135 average) and leads the AMD Radeon PRO W6400 by 1.3% (37,157). The CMP 70HX, by contrast, sits essentially even with the NVIDIA Tesla M60 (30,490 average, 0% delta) and the AMD Radeon RX 6700 (30,433 average, 0.1% delta). It leads the AMD Radeon RX 6800 by 1.3% (30,095) and the NVIDIA GeForce RTX 3070 Ti by 1.8% (29,945). The CMP 70HX's aggregate performance is competitive with those mid-range cards, but it is nowhere near the RTX 4070's level.

Architecture Differences

The two cards come from different generations and use fundamentally different silicon. The RTX 4070 is built on the AD104 chip with Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. The CMP 70HX uses the GA104 chip with Ampere architecture, fabricated on an 8 nm process at Samsung. The process node difference alone explains much of the efficiency and density gap between them.

Transistor counts tell a striking story. The RTX 4070 packs 35,800 million transistors onto a 294 mm² die, yielding a transistor density of 121.8 million per square millimeter. The CMP 70HX has 17,400 million transistors on a larger 392 mm² die, giving it a density of just 44.4 million per square millimeter. The RTX 4070 achieves more than 2.7 times the transistor density of the CMP 70HX, a direct consequence of the newer 5 nm process.

Clock speeds also diverge sharply. The RTX 4070 runs at a 1920 MHz base clock and 2475 MHz boost, while the CMP 70HX is limited to 1365 MHz base and 1395 MHz boost. The RTX 4070's boost clock is nearly 1.8 times higher than the CMP 70HX's, which compounds the architectural advantages.

Memory configurations differ in capacity and bandwidth trade-offs. The RTX 4070 has 12 GB of GDDR6X on a 192-bit bus, delivering 504.2 GB/s bandwidth at 21 Gbps effective. The CMP 70HX has 8 GB of GDDR6X on a wider 256-bit bus, achieving 608.3 GB/s bandwidth at 19 Gbps effective. The CMP 70HX has a memory bandwidth advantage of over 100 GB/s, but the RTX 4070 compensates with more capacity and faster effective memory speed.

Compute resources heavily favor the RTX 4070. It has 5,888 shading units, 184 texture mapping units, 64 ROPs, 46 RT cores, and 184 tensor cores. The CMP 70HX has 3,840 shading units, 120 TMUs, 64 ROPs, 30 RT cores, and 120 tensor cores. The RTX 4070 leads by 53% in shading units, 53% in TMUs, 53% in RT cores, and 53% in tensor cores. ROP count is identical at 64.

Rasterization and compute rates reflect these differences. The RTX 4070 achieves 158.4 GPixel/s pixel fill rate and 455.4 GTexel/s texture rate, versus 89.28 GPixel/s and 167.4 GTexel/s for the CMP 70HX. FP32 compute is 29.15 TFLOPS for the RTX 4070 versus 10.71 TFLOPS for the CMP 70HX, a 2.7 times advantage. FP16 is identical to FP32 on both cards at a 1:1 ratio.

Power and connectivity also diverge. The RTX 4070 has a 200 W TDP with a 550 W suggested PSU and a single 16-pin connector. The CMP 70HX has no recorded TDP, a 200 W suggested PSU, and a single 12-pin connector. The RTX 4070 uses PCIe 4.0 x16, while the CMP 70HX is limited to PCIe 1.0 x4, a severe interface bottleneck. Display outputs are the most functional difference: the RTX 4070 has 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the CMP 70HX has no display outputs at all, as it is designed purely for mining.

Physical dimensions favor the RTX 4070 in length but the CMP 70HX in some other respects. The RTX 4070 is 240 mm long, 110 mm tall, and 40 mm wide. The CMP 70HX is 267 mm long and 112 mm tall, with no recorded width. Both are dual-slot cards.

The Verdict

The data is unambiguous: the RTX 4070 outperforms the CMP 70HX by a wide margin in every recorded benchmark. A 516.1% lead in OpenCL and a 386.2% lead in Vulkan are not close calls. The RTX 4070's average benchmark score of 37,648 versus 30,476 for the CMP 70HX represents a 23.5% advantage in the aggregate, which is substantial even when the head-to-head tests are not the only data points.

For any user needing a functional graphics card with display outputs, the RTX 4070 is the only sensible choice between these two. The CMP 70HX has no display outputs, making it unusable for standard desktop or gaming workloads. Its PCIe 1.0 x4 interface also severely limits data transfer in any scenario that depends on host communication, which is most real-world applications.

The CMP 70HX does have one notable advantage in the memory subsystem: its 608.3 GB/s bandwidth exceeds the RTX 4070's 504.2 GB/s, and its 256-bit bus is wider. In memory-bandwidth-bound workloads that do not require display output and can tolerate the PCIe 1.0 x4 bottleneck, the CMP 70HX could theoretically perform closer to its potential. However, the recorded benchmarks show no such scenario benefiting the CMP 70HX; it loses both tests decisively.

The RTX 4070 is the recommended card for any standard GPU workload. The CMP 70HX is only relevant in the narrow context of mining-specific applications where display output is unnecessary and the 200 W suggested PSU requirement is acceptable. Even then, its raw compute is less than half that of the RTX 4070, so the use case must be extremely specialized.

FAQ

Q: How much faster is the RTX 4070 in the recorded head-to-head benchmarks?

A: The RTX 4070 scores 516.1% higher in Geekbench OpenCL (154,858 versus 25,135) and 386.2% higher in Geekbench Vulkan (174,152 versus 35,817).

Q: Does the CMP 70HX have any advantages in memory specifications?

A: Yes. The CMP 70HX has a wider 256-bit bus and higher bandwidth at 608.3 GB/s, compared to the RTX 4070's 192-bit bus and 504.2 GB/s. However, the RTX 4070 has more capacity at 12 GB versus 8 GB.

Q: Can the CMP 70HX be used for regular display output?

A: No. The CMP 70HX has no display outputs. The RTX 4070 has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Q: What is the transistor density difference between the two cards?

A: The RTX 4070 has a transistor density of 121.8 million per square millimeter on a 5 nm TSMC process. The CMP 70HX has 44.4 million per square millimeter on an 8 nm Samsung process.

Q: How do the average benchmark scores compare?

A: The RTX 4070 averages 37,648 across all recorded benchmarks, placing at the 81st percentile of all GPUs. The CMP 70HX averages 30,476, placing at the 75th percentile.

Q: Which card has higher FP32 compute performance?

A: The RTX 4070 has 29.15 TFLOPS FP32, while the CMP 70HX has 10.71 TFLOPS. The RTX 4070 is 2.7 times higher.

Where Each One Wins

The RTX 4070 wins in every recorded benchmark and every general compute category. It is the clear choice for any application that requires graphics rendering, display output, or general-purpose compute. Its 29.15 TFLOPS FP32, 46 RT cores, and 184 tensor cores make it suited for gaming, creative workloads, and AI acceleration. The 12 GB memory capacity at 504.2 GB/s bandwidth supports modern game textures and larger datasets. The PCIe 4.0 x16 interface ensures full host bandwidth for data transfer.

The CMP 70HX has a narrower set of potential advantages. Its 608.3 GB/s memory bandwidth and 256-bit bus are technically superior to the RTX 4070's memory subsystem, which could matter in bandwidth-saturated compute kernels. The 200 W suggested PSU is lower than the RTX 4070's 550 W suggestion, which could be relevant in multi-GPU mining rigs with strict power budgets. The absence of display outputs and the PCIe 1.0 x4 interface, however, restrict its use to mining or headless compute tasks that do not depend on host communication speed.

The CMP 70HX's nearest rival data shows it performing at the level of the AMD Radeon RX 6700 and NVIDIA GeForce RTX 3070 Ti, with all three within 1.8% of each other. The RTX 4070, by contrast, sits in a tier that includes the NVIDIA GeForce RTX 4080 Mobile and AMD Radeon PRO W6400, all within 1.3% of each other. The performance stratification is clear: the RTX 4070 belongs in the upper-mid-range, while the CMP 70HX belongs in the mid-range.

For any user choosing between these two cards, the decision is essentially predetermined. The RTX 4070 is the only option that can serve as a functional graphics card, and it outperforms the CMP 70HX in every recorded test. The CMP 70HX is a specialized mining card with a historical niche, but the database shows no workload where it beats the RTX 4070. The RTX 4070 wins 2 out of 2 head-to-head benchmarks, and the aggregate score confirms the individual test results.