NVIDIA CMP 70HX vs NVIDIA GeForce RTX 4070 Mobile Comparison

The Verdict

The data positions these two NVIDIA parts as fundamentally different tools. The NVIDIA CMP 70HX is a specialized mining GPU from the Ampere generation, and its benchmark results reflect a narrow purpose. The NVIDIA GeForce RTX 4070 Mobile is a current-generation laptop part, and it dominates the shared benchmarks with overwhelming margins. The recorded data shows a clear winner: the GeForce RTX 4070 Mobile is the only sensible choice for any compute workload measured in the database. In the Geekbench OpenCL test, the mobile part scores 109,197 against the CMP 70HX's 25,135, a delta of -77% for the mining card. The Vulkan result is similarly one-sided, with the RTX 4070 Mobile scoring 108,367 versus 35,817, a delta of -66.9%. The CMP 70HX has zero wins in the head-to-head comparison. For users who need actual graphics or general compute performance, the RTX 4070 Mobile is the definitive pick. The CMP 70HX should only be considered by someone with a very specific, mining-oriented need, and even then, its end-of-life status and lack of display outputs make it a niche acquisition. The average benchmark score of 30,476 for the CMP 70HX places it at the 75th percentile of all GPUs, while the RTX 4070 Mobile, with an average of 27,435, sits at the 73rd percentile. This apparent contradiction, where the older card has a higher percentile, is explained by the different benchmark suites recorded for each; the CMP 70HX only has Geekbench scores, while the RTX 4070 Mobile includes many Passmark tests, which pull its average down. The verdict is simple: the RTX 4070 Mobile is the superior part for any standard compute task.

FAQ

Q: Which GPU is faster in the recorded benchmarks?

A: The NVIDIA GeForce RTX 4070 Mobile is decisively faster in both shared tests. It scores 109,197 in Geekbench OpenCL versus 25,135 for the CMP 70HX, and 108,367 in Geekbench Vulkan versus 35,817. The delta percentages are -77% and -66.9% respectively, indicating the CMP 70HX trails by massive margins.

Q: How do these cards compare to their nearest rivals in the database?

A: The CMP 70HX's average score of 30,476 is nearly identical to the NVIDIA Tesla M60's 30,490 (0% delta). It is 0.1% ahead of the AMD Radeon RX 6700, 1.3% ahead of the AMD Radeon RX 6800, and 1.8% ahead of the NVIDIA GeForce RTX 3070 Ti. The RTX 4070 Mobile's average of 27,435 matches the AMD Radeon RX 6700 XT's 27,425 (0% delta), sits 0.5% behind the NVIDIA GeForce RTX 3090, 1.1% ahead of the NVIDIA RTX PRO 4000 Blackwell, and 1.5% behind the AMD Radeon Pro Vega 20.

Q: What is the purpose of the CMP 70HX?

A: The CMP 70HX belongs to the "Mining GPUs" generation and has no display outputs. This directly indicates its intended use for cryptocurrency mining rather than traditional graphics rendering. Its production status is end-of-life, and it uses a PCIe 1.0 x4 bus interface, which is unusual and further suggests a specialized, non-gaming role.

Q: What is the form factor and power requirement of each card?

A: The CMP 70HX is a dual-slot card that is 267 mm long and 112 mm high, requiring a 1x 12-pin power connector and a suggested 200 W power supply. The RTX 4070 Mobile is an IGP (integrated graphics processor) with no dimensions listed, no power connectors, and a TDP of 115 W. This makes the mobile part far easier to integrate into a portable device.

Q: Do these GPUs support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This means that from a software interface perspective, they are equally capable of running modern applications that rely on these APIs, even if the actual performance differs drastically.

Q: Which card has better memory bandwidth?

A: The CMP 70HX has a 256-bit memory bus with GDDR6X memory, delivering 608.3 GB/s of bandwidth. The RTX 4070 Mobile uses a 128-bit bus with GDDR6 memory, providing 256.0 GB/s. The CMP 70HX's bandwidth is significantly higher, but this advantage does not translate into better compute scores in the recorded tests.

Architecture Differences

The two GPUs represent completely different architectural generations and design philosophies. The CMP 70HX is built on the Ampere architecture, using the GA104 chip manufactured by Samsung on an 8 nm process. The RTX 4070 Mobile is based on the Ada Lovelace architecture, using the AD106 chip produced by TSMC on a 5 nm node. This fundamental process difference is stark: the CMP 70HX has a die size of 392 mm², while the RTX 4070 Mobile's die is a much smaller 188 mm². The transistor counts tell a fascinating story. The CMP 70HX packs 17,400 million transistors on its large die, resulting in a transistor density of 44.4 million per mm². The RTX 4070 Mobile, despite having a smaller physical die, contains 22,900 million transistors, achieving a much higher density of 121.8 million per mm². This shows that the newer 5 nm process allows for significantly more complex circuitry in a smaller area. The CMP 70HX also lacks any display outputs, confirming its role as a compute-only mining accelerator. In contrast, the RTX 4070 Mobile's display outputs are described as "Portable Device Dependent," meaning they are provided by the host laptop. The CMP 70HX uses a PCIe 1.0 x4 interface, a surprisingly old and narrow bus, while the RTX 4070 Mobile uses the modern PCIe 4.0 x8 interface. The CMP 70HX is a dual-slot card with a 1x 12-pin power connector and a suggested 200 W power supply, whereas the RTX 4070 Mobile is an IGP with no power connectors and a TDP of 115 W. The CMP 70HX is end-of-life, while the RTX 4070 Mobile is active, having been released in early 2023, with a predecessor in the GeForce 30 Mobile series and a successor in the GeForce 50 Mobile series.

Specification Differences

The specification sheets for these two GPUs read like a comparison of two different product categories. The CMP 70HX has a base clock of 1365 MHz and a boost clock of 1395 MHz. The RTX 4070 Mobile has a higher base clock of 1395 MHz and a significantly higher boost clock of 1695 MHz. The memory configurations also differ. The CMP 70HX uses 8 GB of GDDR6X on a 256-bit bus, with a memory clock of 1188 MHz and 19 Gbps effective, achieving a bandwidth of 608.3 GB/s. The RTX 4070 Mobile uses 8 GB of GDDR6 on a 128-bit bus, with a memory clock of 2000 MHz and 16 Gbps effective, resulting in a much lower bandwidth of 256.0 GB/s. In terms of raw compute resources, the RTX 4070 Mobile has more of almost everything. It features 4608 shading units, 144 TMUs, 36 RT cores, and 144 tensor cores. The CMP 70HX has 3840 shading units, 120 TMUs, 30 RT cores, and 120 tensor cores. However, the CMP 70HX has more ROPs, with 64 versus the RTX 4070 Mobile's 48. This leads to different pixel and texture rates. The CMP 70HX achieves a pixel rate of 89.28 GPixel/s and a texture rate of 167.4 GTexel/s. The RTX 4070 Mobile has a lower pixel rate of 81.36 GPixel/s but a much higher texture rate of 244.1 GTexel/s. The FP32 and FP16 performance figures are identical within each card (1:1 ratio), with the CMP 70HX delivering 10.71 TFLOPS and the RTX 4070 Mobile delivering 15.62 TFLOPS. The CMP 70HX has no TDP listed, while the RTX 4070 Mobile is rated at 115 W. The CMP 70HX is 267 mm long and 112 mm high, while the RTX 4070 Mobile has no physical dimensions listed as it is meant for integration into laptops.

Head-to-Head Benchmarks

The database records two shared benchmark tests between these GPUs, and the results are a complete rout. The first test, Geekbench OpenCL, shows the RTX 4070 Mobile scoring 109,197 points. The CMP 70HX scores 25,135 points. The delta percentage is -77%, meaning the CMP 70HX delivers less than a quarter of the performance of the RTX 4070 Mobile in this compute workload. This is not a marginal difference; it is a generational gap in raw execution capability. The second test, Geekbench Vulkan, follows the same pattern. The RTX 4070 Mobile scores 108,367 points, while the CMP 70HX scores 35,817 points. The delta here is -66.9%, again indicating a massive advantage for the mobile part. These results are particularly striking when considering the CMP 70HX's superior memory bandwidth of 608.3 GB/s versus 256.0 GB/s for the RTX 4070 Mobile. Despite having more than double the bandwidth, the CMP 70HX is far slower in these tests. This suggests that the RTX 4070 Mobile's advantage comes from its much higher boost clock (1695 MHz vs 1395 MHz), its larger number of shading units (4608 vs 3840), and its more modern architecture. The CMP 70HX's narrow PCIe 1.0 x4 interface may also be a bottleneck in some workloads, although it does not directly affect the GPU's internal compute throughput. The head-to-head data is clear: the RTX 4070 Mobile wins both tests by enormous margins, and the CMP 70HX has zero wins. The CMP 70HX's average benchmark score of 30,476 is higher than the RTX 4070 Mobile's 27,435, but this is misleading. The CMP 70HX's average is based solely on its two Geekbench scores, while the RTX 4070 Mobile's average includes nine different tests, many of which are Passmark tests with much lower numbers. For example, the RTX 4070 Mobile's Passmark G2D score is 763, and its Passmark DirectX 9 score is 223. These low scores drag down its average. The Geekbench results are the only apples-to-apples comparison available, and they show a decisive victory for the RTX 4070 Mobile.