NVIDIA CMP 50HX vs NVIDIA GeForce RTX 4080 Mobile Comparison

# FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA CMP 50HX leads in average benchmark score with 51,790 points, placing it in the 86th percentile of all GPUs. The GeForce RTX 4080 Mobile averages 38,135 points, which puts it in the 81st percentile.

Q: How does the CMP 50HX compare to its closest rivals?

A: The CMP 50HX sits 1.6% ahead of the AMD Radeon RX 6900 XT (50,951 average), 3.6% ahead of the AMD Radeon RX Vega 64 (50,001), 3.7% ahead of the NVIDIA GeForce RTX 5070 Ti (49,957), and 4.1% ahead of the Intel Arc A550M (49,737) in average score.

Q: What is the performance relationship between the RTX 4080 Mobile and its nearest rivals?

A: The RTX 4080 Mobile is 0.4% behind the NVIDIA GeForce MX570 (38,299 average), 0.6% behind the NVIDIA GeForce RTX 5080 Mobile (38,349), and 1.3% ahead of both the NVIDIA GeForce RTX 4070 (37,648) and NVIDIA Tesla P4 (37,628).

Q: Which GPU has the higher memory bandwidth?

A: The CMP 50HX has 560.0 GB/s of bandwidth from a 320-bit bus with 10 GB of GDDR6, while the RTX 4080 Mobile has 432.0 GB/s from a 192-bit bus with 12 GB of GDDR6.

Q: What are the transistor counts for these two chips?

A: The CMP 50HX uses the TU102 chip with 18,600 million transistors on a 754 mm² die, while the RTX 4080 Mobile uses the AD104 chip with 35,800 million transistors on a 294 mm² die.

Q: What is the production status of each GPU?

A: The CMP 50HX is end-of-life and was released on June 23, 2021. The RTX 4080 Mobile is active and was released on January 2, 2023.

# Architecture Differences

The two GPUs represent fundamentally different design generations from NVIDIA. The CMP 50HX is built on the Turing architecture using the TU102 chip, fabricated on TSMC's 12 nm process. The RTX 4080 Mobile uses the Ada Lovelace architecture with the AD104 chip, fabricated on TSMC's 5 nm process. This process shift is dramatic: the 12 nm node gives way to 5 nm, enabling the newer chip to pack 35,800 million transistors into a 294 mm² die, while the older TU102 uses 18,600 million transistors across a much larger 754 mm² die. The transistor density tells the story: the RTX 4080 Mobile achieves 121.8M transistors per mm², whereas the CMP 50HX manages only 24.7M per mm².

The shader configuration differs substantially. The CMP 50HX has 3,584 shading units, 192 texture mapping units, and 80 raster output units. The RTX 4080 Mobile more than doubles the shading units to 7,424, with 232 TMUs and the same 80 ROPs. Ray tracing hardware is similar in count: 56 RT cores on the CMP 50HX versus 58 on the RTX 4080 Mobile. Tensor cores, however, present an interesting inversion: the CMP 50HX has 448 tensor cores, while the RTX 4080 Mobile has only 232. This reflects the different design priorities, with the mining-oriented card retaining a higher tensor core count per shader.

Memory subsystems diverge as well. The CMP 50HX uses 10 GB of GDDR6 on a 320-bit bus, producing 560.0 GB/s of bandwidth. The RTX 4080 Mobile has 12 GB of GDDR6 on a 192-bit bus, yielding 432.0 GB/s. The effective memory clock rates also differ: 14 Gbps for the CMP 50HX versus 18 Gbps for the RTX 4080 Mobile. The narrower bus on the newer card is partially compensated by the higher memory speed, but the older card retains the bandwidth advantage.

The feature sets show a split in design intent. The CMP 50HX has no display outputs, making it unsuitable for any visual output tasks. The RTX 4080 Mobile's display outputs are portable device dependent, meaning they vary by laptop implementation. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The bus interfaces differ: the CMP 50HX uses PCIe 1.0 x4, a notably narrow interface, while the RTX 4080 Mobile uses PCIe 4.0 x16, offering far greater host bandwidth.

Power characteristics reflect the physical form factors. The CMP 50HX has a 250 W TDP, uses dual-slot cooling, requires 2x 8-pin power connectors, and suggests a 600 W power supply. The RTX 4080 Mobile has a 110 W TDP, is an integrated graphics package (IGP), has no power connectors, and has no suggested PSU rating. The desktop mining card is a standalone expansion card measuring 267 mm in length, 116 mm in height, and 35 mm in width, whereas the mobile GPU has no listed dimensions.

# Head-to-Head Benchmarks

The recorded head-to-head data covers two benchmark tests, and the RTX 4080 Mobile wins both decisively. In Geekbench OpenCL, the RTX 4080 Mobile scores 159,575 against the CMP 50HX's 56,135. This represents a delta of -64.8% for the CMP 50HX, meaning the mobile GPU delivers approximately 2.84 times the OpenCL performance. The margin is substantial, and it aligns with the raw compute specifications: the RTX 4080 Mobile outputs 24.72 TFLOPS of FP32 performance, while the CMP 50HX produces 11.07 TFLOPS.

In Geekbench Vulkan, the gap widens further. The RTX 4080 Mobile achieves 145,807 points, while the CMP 50HX manages 47,445. The delta is -67.5% for the CMP 50HX, indicating the RTX 4080 Mobile is roughly 3.07 times faster in this API. The Vulkan result shows a larger relative advantage than OpenCL, suggesting the newer architecture handles the Vulkan workload more efficiently.

The CMP 50HX has no wins in the head-to-head comparison, losing both recorded tests. Its average benchmark score of 51,790, however, exceeds the RTX 4080 Mobile's 38,135 average. This discrepancy arises because the average scores derive from different benchmark suites: the CMP 50HX has only two recorded entries (OpenCL and Vulkan), while the RTX 4080 Mobile includes additional DirectX and PassMark tests. The PassMark tests on the RTX 4080 Mobile, such as the DirectX 10 score of 157, DirectX 11 score of 244, DirectX 12 score of 96, and DirectX 9 score of 286, pull its average down relative to the pure compute-oriented Geekbench results.

The texture and pixel rates align with the head-to-head outcomes. The RTX 4080 Mobile has a texture rate of 386.3 GTexel/s versus 296.6 GTexel/s for the CMP 50HX, and a pixel rate of 133.2 GPixel/s versus 123.6 GPixel/s. These hardware rates corroborate the benchmark results, showing the mobile GPU holds the advantage in both fill-rate categories.

# Specification Differences

The two GPUs differ across nearly every measurable specification. The process node moves from 12 nm on the CMP 50HX to 5 nm on the RTX 4080 Mobile. Transistor count jumps from 18,600 million to 35,800 million, while die size shrinks from 754 mm² to 294 mm². Transistor density rises from 24.7M per mm² to 121.8M per mm².

Clock speeds show a modest shift. Base clock drops slightly from 1350 MHz on the CMP 50HX to 1290 MHz on the RTX 4080 Mobile. Boost clock increases from 1545 MHz to 1665 MHz. Memory clock rises from 1750 MHz (14 Gbps effective) to 2250 MHz (18 Gbps effective).

Memory configuration changes in capacity and bus width. The CMP 50HX has 10 GB of GDDR6 on a 320-bit bus, while the RTX 4080 Mobile has 12 GB of GDDR6 on a 192-bit bus. Bandwidth favors the older card: 560.0 GB/s versus 432.0 GB/s.

Compute resources differ markedly. Shading units increase from 3,584 to 7,424. TMUs increase from 192 to 232. ROPs stay equal at 80. RT cores increase from 56 to 58. Tensor cores decrease from 448 to 232. FP32 performance rises from 11.07 TFLOPS to 24.72 TFLOPS. FP16 performance also rises from 22.15 TFLOPS (2:1 ratio) to 24.72 TFLOPS (1:1 ratio).

Power and physical specifications diverge completely. TDP drops from 250 W to 110 W. Slot width changes from dual-slot to IGP. Power connectors go from 2x 8-pin to none. Suggested PSU is 600 W for the CMP 50HX, with no suggestion for the RTX 4080 Mobile. The bus interface changes from PCIe 1.0 x4 to PCIe 4.0 x16. Display outputs go from none to portable device dependent. The CMP 50HX has physical dimensions of 267 mm by 116 mm by 35 mm, while the RTX 4080 Mobile has no listed dimensions.

Release dates and production status also differ. The CMP 50HX launched on June 23, 2021, and is end-of-life. The RTX 4080 Mobile launched on January 2, 2023, and is active. The RTX 4080 Mobile has a predecessor in GeForce 30 Mobile and a successor in GeForce 50 Mobile, while the CMP 50HX has neither.

# Where Each One Wins

The RTX 4080 Mobile wins decisively in the recorded compute benchmarks. Its OpenCL score of 159,575 is 64.8% above the CMP 50HX's 56,135, and its Vulkan score of 145,807 is 67.5% above the CMP 50HX's 47,445. This performance advantage is consistent with its doubled FP32 throughput of 24.72 TFLOPS versus 11.07 TFLOPS, higher texture rate of 386.3 GTexel/s versus 296.6 GTexel/s, and higher pixel rate of 133.2 GPixel/s versus 123.6 GPixel/s. The Ada Lovelace architecture's 5 nm process delivers substantially more compute per watt, as evidenced by the 110 W TDP achieving more than double the FP32 performance of the 250 W Turing card.

The CMP 50HX holds advantages in specific hardware metrics that do not translate to benchmark wins in the recorded tests. Its memory bandwidth of 560.0 GB/s exceeds the RTX 4080 Mobile's 432.0 GB/s by 29.6%. Its tensor core count of 448 far surpasses the 232 in the RTX 4080 Mobile, though this does not appear in the recorded benchmarks. The higher average benchmark score of 51,790 versus 38,135 reflects the different benchmark composition rather than outright superiority, and its 86th percentile ranking versus the 81st percentile for the RTX 4080 Mobile places it higher in the overall GPU distribution.

For use cases, the RTX 4080 Mobile is the clear choice for any workload that relies on raw shader compute, including modern gaming, 3D rendering, and general-purpose GPU compute. Its higher FP32 and FP16 throughput, combined with the 1:1 FP16 ratio, indicates strong performance in both single-precision and half-precision workloads. The newer architecture also carries the benefit of being in active production with a successor already planned.

The CMP 50HX, with its mining-specific design, offers no display outputs and uses a PCIe 1.0 x4 interface, making it unsuitable for interactive or display-centric tasks. Its strengths lie in memory bandwidth and tensor core density, which historically support compute-heavy operations such as machine learning inference. However, the recorded data shows it trailing the RTX 4080 Mobile in both OpenCL and Vulkan, the only two tests where both are measured. The end-of-life status further limits its practical appeal, while the RTX 4080 Mobile remains an active product with ongoing support. For the vast majority of workloads, the benchmark data favors the RTX 4080 Mobile, with the CMP 50HX's niche advantages confined to bandwidth-sensitive or tensor-heavy tasks that are not represented in the head-to-head results.