AMD Radeon RX 6600 LE vs NVIDIA CMP 50HX Comparison

The AMD Radeon RX 6600 LE and the NVIDIA CMP 50HX occupy very different corners of the GPU market, one a conventional RDNA 2.0 graphics card and the other a Turing-based mining-only accelerator. The recorded benchmark data, drawn from Geekbench OpenCL and Vulkan tests, shows a clear performance hierarchy, but the specification sheet reveals why these two products were built for entirely different workloads. This analysis walks through the measured scores, architectural differences, and practical implications for each card based solely on the database entries.

FAQ

Q: Which card has the higher average benchmark score?

A: The AMD Radeon RX 6600 LE records an average benchmark score of 70829, while the NVIDIA CMP 50HX averages 51790. The AMD card sits in the 91st percentile of all GPUs, compared to the 86th percentile for the NVIDIA card.

Q: How large is the performance gap in the head-to-head tests?

A: In Geekbench OpenCL, the RX 6600 LE scores 69229 against the CMP 50HX’s 56135, a lead of 23.3%. In Geekbench Vulkan, the gap widens to 52.7%, with the RX 6600 LE posting 72428 versus the CMP 50HX’s 47445.

Q: Which card has more memory bandwidth?

A: The NVIDIA CMP 50HX has a 320-bit memory bus and delivers 560.0 GB/s of bandwidth. The AMD Radeon RX 6600 LE uses a 128-bit bus and provides 224.0 GB/s.

Q: What are the power requirements for each card?

A: The RX 6600 LE has a TDP of 132 W and requires a single 8-pin power connector with a suggested 300 W power supply. The CMP 50HX has a TDP of 250 W, uses two 8-pin connectors, and calls for a 600 W power supply.

Q: Does either card support display outputs?

A: The AMD Radeon RX 6600 LE includes 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs. The NVIDIA CMP 50HX has no display outputs whatsoever, as it is designed exclusively for mining.

Q: What is the production status of each card?

A: The AMD Radeon RX 6600 LE is listed as Active, released on 2023-12-07. The NVIDIA CMP 50HX is marked End-of-life, with a release date of 2021-06-23.

The Verdict

The data points to a straightforward conclusion: the AMD Radeon RX 6600 LE is the superior performer in every recorded benchmark. It wins both head-to-head tests, holds a 36.9% higher average score (70829 versus 51790), and sits five percentile points higher in the global GPU ranking. For anyone comparing these two cards for general computing, rendering, or any task that uses OpenCL or Vulkan, the RX 6600 LE is the only sensible choice.

The NVIDIA CMP 50HX, however, was never intended for such workloads. Its lack of display outputs, PCIe 1.0 x4 interface, and mining-focused generation label indicate a specialized product. The database shows it has more raw compute resources, including 3584 shading units and 448 tensor cores, but its benchmark scores lag significantly. The CMP 50HX belongs to a class of hardware designed for a single purpose, and the measured data confirms that purpose does not translate into competitive general-purpose performance.

The verdict for buyers is simple: if the use case involves any form of visual output, software compatibility, or standard GPU acceleration, the RX 6600 LE wins outright. The CMP 50HX only makes sense in a scenario where its specific architecture traits, such as the large memory bus and high bandwidth, are more valuable than its poor benchmark showing, though the recorded scores do not quantify such a scenario.

Head-to-Head Benchmarks

The two recorded benchmarks tell a consistent story of AMD dominance. In Geekbench OpenCL, the RX 6600 LE scores 69229 against the CMP 50HX’s 56135, a 23.3% advantage. This margin is substantial, but the Vulkan test reveals an even larger gap. The RX 6600 LE posts 72428, while the CMP 50HX manages only 47445, giving the AMD card a 52.7% lead.

The Vulkan result is particularly telling. The RX 6600 LE’s score improves from OpenCL to Vulkan by roughly 4.6%, while the CMP 50HX’s score drops by 15.5% across the same two tests. This divergence suggests that the AMD card handles the newer API much more efficiently, a trait likely rooted in its RDNA 2.0 architecture. The CMP 50HX, built on Turing, shows diminished performance under Vulkan, which may reflect its design priorities or driver maturity.

The average benchmark scores reinforce the head-to-head results. The RX 6600 LE averages 70829, which places it close to its nearest rivals: the NVIDIA RTX A3000 Mobile at 70140 (1% slower), the AMD Radeon RX 6650M at 71768 (1.3% faster), and the AMD Radeon Pro WX 8200 at 69870 (1.4% slower). The CMP 50HX averages 51790, putting it just ahead of the AMD Radeon RX 6900 XT at 50951 (1.6% slower), the AMD Radeon RX Vega 64 at 50001 (3.6% slower), and the NVIDIA GeForce RTX 5070 Ti at 49957 (3.7% slower). The RX 6600 LE competes with mobile and workstation cards, while the CMP 50HX sits near desktop flagship and older high-end parts.

Specification Differences

The two cards differ in nearly every measurable specification. The RX 6600 LE uses a 7 nm process with 11,060 million transistors on a 237 mm² die, while the CMP 50HX uses a 12 nm process with 18,600 million transistors on a 754 mm² die. The transistor density reflects this: 46.7 million per mm² for the AMD card versus 24.7 million per mm² for the NVIDIA card.

Clock speeds favor the RX 6600 LE in base and boost, with 1626 MHz and 2495 MHz respectively, against the CMP 50HX’s 1350 MHz and 1545 MHz. The AMD card also has a game clock of 2045 MHz, a feature the CMP 50HX lacks entirely. Memory differs in capacity and bus width: the RX 6600 LE has 8 GB GDDR6 on a 128-bit bus, while the CMP 50HX has 10 GB GDDR6 on a 320-bit bus. This results in bandwidth of 224.0 GB/s for the AMD card and 560.0 GB/s for the NVIDIA card.

The compute resource counts also diverge sharply. The RX 6600 LE has 1792 shading units, 112 texture mapping units, 64 ROPs, and 28 ray tracing cores. The CMP 50HX has 3584 shading units, 192 TMUs, 80 ROPs, 56 RT cores, and 448 tensor cores. Despite having double the shading units, the CMP 50HX produces lower benchmark scores, highlighting how clock speed and architecture efficiency matter more than raw counts.

Power and physical specs underline the different design philosophies. The RX 6600 LE draws 132 W, uses one 8-pin connector, and requires a 300 W power supply. The CMP 50HX draws 250 W, uses two 8-pin connectors, and needs a 600 W power supply. The AMD card is shorter at 190 mm versus 267 mm for the NVIDIA card, though both are dual-slot. The RX 6600 LE uses PCIe 4.0 x8, while the CMP 50HX uses PCIe 1.0 x4, a massive interface gap that likely contributes to its lower performance in bandwidth-sensitive tests.

Architecture Differences

The architectural split is fundamental. The RX 6600 LE is built on RDNA 2.0, part of the Navi II generation (RX 6000 series), using the Navi 23 chip. The CMP 50HX is built on Turing, using the TU102 chip, and belongs to NVIDIA’s Mining GPUs generation. The process nodes differ: 7 nm for AMD versus 12 nm for NVIDIA, both fabricated by TSMC.

Cache and memory hierarchies are not fully specified in the database, but the available data shows key differences. The RX 6600 LE has 28 ray tracing cores and no tensor cores, while the CMP 50HX has 56 RT cores and 448 tensor cores. The presence of tensor cores on the CMP 50HX suggests AI-oriented hardware, though its benchmark scores do not reflect any advantage in the recorded tests. The RX 6600 LE’s higher clock speeds, particularly the 2495 MHz boost versus 1545 MHz, drive its FP32 throughput of 8.942 TFLOPS, close to the CMP 50HX’s 11.07 TFLOPS despite the latter having twice the shading units.

API support is identical: both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The display output situation differs completely, with the RX 6600 LE offering HDMI and DisplayPort connections and the CMP 50HX offering none. The bus interface difference is another architectural separator: PCIe 4.0 x8 for AMD versus PCIe 1.0 x4 for NVIDIA, a factor that could bottleneck the CMP 50HX in data transfer scenarios.

Where Each One Wins

The AMD Radeon RX 6600 LE wins in every recorded benchmark category. It takes Geekbench OpenCL with a 23.3% margin and Geekbench Vulkan with a 52.7% margin. Its average score of 70829 places it in the 91st percentile, a position that reflects strong general-purpose compute performance. The card’s higher clocks, modern 7 nm process, and PCIe 4.0 interface all contribute to this result. For tasks like rendering, video encoding, or any application that relies on OpenCL or Vulkan, the RX 6600 LE is the clear winner.

The NVIDIA CMP 50HX does not win a single head-to-head benchmark. Its only potential advantages lie in the unmeasured specification domain: 560.0 GB/s of memory bandwidth, 10 GB of VRAM, and 448 tensor cores. These traits could theoretically benefit workloads that require massive data throughput or specific AI operations, but the database provides no benchmark evidence for such use cases. The card’s 86th percentile ranking and 51790 average score place it far behind the RX 6600 LE.

The use-case split is therefore stark. The RX 6600 LE suits any scenario where a user needs a functional graphics card with display outputs, modern API support, and competitive compute scores. The CMP 50HX is a mining-specific product, evidenced by its lack of outputs, end-of-life status, and PCIe 1.0 x4 interface. For general computing, the RX 6600 LE wins. For a hypothetical mining workload, the CMP 50HX’s high bandwidth and memory size might offer an edge, but the recorded data does not measure that scenario. The benchmark results stand as the definitive comparison: two wins for AMD, zero for NVIDIA.