NVIDIA CMP 70HX vs NVIDIA TITAN RTX Comparison

The NVIDIA TITAN RTX and NVIDIA CMP 70HX are two very different products from NVIDIA, despite sharing a name prefix. The TITAN RTX is a Turing-based workstation-class card from 2018, while the CMP 70HX is a mining-specific Ampere card with no display outputs. Benchmark data shows a decisive performance gap: the TITAN RTX wins both head-to-head tests by massive margins. In Geekbench OpenCL, the TITAN RTX scores 144,858 against the CMP 70HX’s 25,135, a delta of 476.3%. The Vulkan test shows a similar story, with the TITAN RTX scoring 136,073 versus 35,817, a 279.9% advantage. The average benchmark scores reflect this too: the TITAN RTX averages 31,676, while the CMP 70HX averages 30,476, a much closer gap that is skewed by the CMP 70HX’s limited benchmark portfolio.

Head-to-Head Benchmarks

The only shared benchmarks between the two cards are Geekbench OpenCL and Geekbench Vulkan, and the TITAN RTX dominates both. The OpenCL result is the most lopsided: the TITAN RTX’s 144,858 score is nearly five times higher than the CMP 70HX’s 25,135, representing a 476.3% lead. This is not a close contest by any measure. The Vulkan result, while less extreme, still shows a 279.9% advantage for the TITAN RTX, with scores of 136,073 and 35,817 respectively. These numbers indicate that in compute-heavy workloads, the TITAN RTX is in a completely different performance class.

The average benchmark scores paint a slightly different picture. The TITAN RTX holds an average score of 31,676 across ten benchmarks, while the CMP 70HX averages 30,476 across just two. The delta here is only about 3.9%, but this is misleading. The CMP 70HX’s average is based solely on its two Geekbench results, which are far lower than the TITAN RTX’s scores in those same tests. The TITAN RTX’s average includes many other tests like PassMark and 3DMark where it performs strongly, such as a PassMark G3D score of 20,491 and a 3DMark Steel Nomad score of 3,794. The CMP 70HX has no comparable results in those tests, so its average is not a reliable indicator of relative performance.

Looking at the nearest rivals for each card provides additional context. The TITAN RTX’s closest competitor is the NVIDIA RTX PRO 4500 Blackwell, which scores 31,532, just 0.5% behind. The Intel Arc Pro A30M is 0.7% ahead at 31,894. The CMP 70HX sits near the NVIDIA Tesla M60, which scores 30,490, a 0% delta, and the AMD Radeon RX 6700, which is 0.1% behind. These rival comparisons show that the TITAN RTX is positioned among modern professional GPUs, while the CMP 70HX is more aligned with older or mid-range consumer cards.

In terms of raw compute, the TITAN RTX delivers 16.31 TFLOPS of FP32 performance, compared to the CMP 70HX’s 10.71 TFLOPS. This is a 52% advantage for the TITAN RTX. The texture rate also favors the TITAN RTX: 509.8 GTexel/s versus 167.4 GTexel/s, a threefold difference. Pixel rate is similarly lopsided at 169.9 GPixel/s versus 89.28 GPixel/s. These hardware specifications directly explain the benchmark gaps, as the TITAN RTX simply has more execution resources across the board.

The Verdict

For any user prioritizing compute performance, the data points squarely to the NVIDIA TITAN RTX. It wins both head-to-head benchmarks by margins of 476.3% and 279.9%, and it offers higher raw throughput in FP32, texture, and pixel rates. The TITAN RTX also has a higher average benchmark score of 31,676 versus 30,476, and it sits at the 76th percentile of all GPUs, compared to the CMP 70HX’s 75th percentile. The CMP 70HX is not a viable alternative for general-purpose computing or graphics work, as it has no display outputs and its PCIe 1.0 x4 interface severely limits data transfer.

However, the CMP 70HX is not without its place. Its lower power draw, with a suggested PSU of 200 W versus 600 W for the TITAN RTX, makes it a more efficient option in scenarios where power is a constraint. The CMP 70HX also uses GDDR6X memory, which is faster per module, though its 8 GB capacity is a third of the TITAN RTX’s 24 GB. The CMP 70HX’s 608.3 GB/s bandwidth is only slightly lower than the TITAN RTX’s 672.0 GB/s, despite the smaller bus width of 256-bit versus 384-bit.

The verdict is clear: the TITAN RTX is the superior card for nearly every measurable metric. The CMP 70HX should only be considered by someone specifically needing a low-power, no-display mining card, and even then, its performance is far below the TITAN RTX. The data does not support any scenario where the CMP 70HX outperforms the TITAN RTX in compute tasks. The TITAN RTX is the definitive choice for professionals and enthusiasts who need maximum performance.

Architecture Differences

The two cards are built on entirely different architectures and process nodes. The TITAN RTX uses the TU102 chip based on the Turing architecture, fabricated on a 12 nm process at TSMC. It packs 18,600 million transistors into a 754 mm² die, giving a transistor density of 24.7 million per square millimeter. In contrast, the CMP 70HX uses the GA104 chip based on the Ampere architecture, built on an 8 nm process at Samsung. This chip contains 17,400 million transistors on a much smaller 392 mm² die, achieving a higher density of 44.4 million per square millimeter. The smaller, denser die means the CMP 70HX is more modern in manufacturing, but it has fewer transistors overall.

The core configurations differ significantly. The TITAN RTX has 4,608 shading units, 288 TMUs, and 96 ROPs. It also includes 72 RT cores and 576 tensor cores. The CMP 70HX is more modest, with 3,840 shading units, 120 TMUs, and 64 ROPs. It has only 30 RT cores and 120 tensor cores. This means the TITAN RTX has 20% more shading units, 140% more TMUs, and 50% more ROPs. The RT core count is more than double, and the tensor core count is nearly five times higher. These differences explain the TITAN RTX’s superior performance in ray-traced and AI-accelerated workloads.

The FP16 performance also reveals architectural choices. The TITAN RTX delivers 32.62 TFLOPS of FP16, which is exactly double its FP32 rate, indicating a 2:1 ratio typical of Turing. The CMP 70HX delivers 10.71 TFLOPS of FP16, which is identical to its FP32 rate, showing a 1:1 ratio. This suggests the CMP 70HX does not have dedicated FP16 acceleration, making it less suited for workloads that benefit from reduced precision. The TITAN RTX’s FP16 advantage is 3.05x, which is a major differentiator for AI and scientific computing tasks.

Memory architecture also diverges. The TITAN RTX uses 24 GB of GDDR6 memory on a 384-bit bus, while the CMP 70HX uses 8 GB of GDDR6X on a 256-bit bus. The memory clock speeds differ: the TITAN RTX runs at 1750 MHz (14 Gbps effective), while the CMP 70HX runs at 1188 MHz (19 Gbps effective). Despite the faster effective speed of the GDDR6X, the narrower bus on the CMP 70HX results in lower bandwidth: 608.3 GB/s versus 672.0 GB/s. The TITAN RTX’s triple-capacity memory is a significant advantage for large datasets.

Specification Differences

The most obvious difference is display output. The TITAN RTX has 1x HDMI 2.0, 3x DisplayPort 1.4a, and 1x USB Type-C. The CMP 70HX has no display outputs at all, confirming its mining-only purpose. The bus interface also differs: the TITAN RTX uses PCIe 3.0 x16, while the CMP 70HX uses PCIe 1.0 x4, which is a severe bottleneck for any data transfer. The power connectors are different too: the TITAN RTX requires 2x 8-pin, while the CMP 70HX uses a single 12-pin. The suggested PSU is 600 W for the TITAN RTX and 200 W for the CMP 70HX.

The TITAN RTX has a launch MSRP of 2,499 USD, while the CMP 70HX has no listed launch MSRP. The TITAN RTX was released on 2018-12-17, while the CMP 70HX has no release date. The TITAN RTX has a predecessor in GeForce 10 and a successor in GeForce 30, while the CMP 70HX has neither. Both cards are dual-slot and 267 mm long, but the TITAN RTX is slightly taller at 116 mm versus 112 mm. The TITAN RTX is also wider at 35 mm, while the CMP 70HX has no listed width.

Clock speeds show a different tuning philosophy. The TITAN RTX has a base clock of 1350 MHz and a boost clock of 1770 MHz. The CMP 70HX has a base clock of 1365 MHz, which is slightly higher, but a boost clock of only 1395 MHz, which is much lower. This suggests the CMP 70HX is heavily power-limited and cannot maintain high clocks under load. The TITAN RTX’s boost clock is 26.9% higher, which contributes to its performance advantage. The TITAN RTX also has a TDP of 280 W, while the CMP 70HX has no listed TDP, though the 200 W PSU suggestion implies a much lower power envelope.

The API support is identical: both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The production status for both is end-of-life. The TITAN RTX has a transistor density of 24.7M / mm², while the CMP 70HX has 44.4M / mm². The die sizes are 754 mm² and 392 mm², respectively. The TITAN RTX has a pixel rate of 169.9 GPixel/s and a texture rate of 509.8 GTexel/s, versus 89.28 GPixel/s and 167.4 GTexel/s for the CMP 70HX.

FAQ

Q: Which card wins the Geekbench OpenCL benchmark?

A: The NVIDIA TITAN RTX wins with a score of 144,858, which is 476.3% higher than the CMP 70HX’s 25,135.

Q: What is the FP32 compute performance difference?

A: The TITAN RTX delivers 16.31 TFLOPS of FP32, while the CMP 70HX delivers 10.71 TFLOPS, making the TITAN RTX 52% faster.

Q: Does the CMP 70HX support display outputs?

A: No, the CMP 70HX has no display outputs, while the TITAN RTX includes HDMI 2.0, DisplayPort 1.4a, and USB Type-C.

Q: How much memory does each card have?

A: The TITAN RTX has 24 GB of GDDR6, while the CMP 70HX has 8 GB of GDDR6X.

Q: What is the average benchmark score for each card?

A: The TITAN RTX has an average score of 31,676, while the CMP 70HX has an average score of 30,476.

Q: Which card has more RT cores?

A: The TITAN RTX has 72 RT cores, while the CMP 70HX has 30 RT cores, a 2.4x advantage for the TITAN RTX.