GeForce RTX 5090 Mobile vs Radeon RX 6600 LE
Aggregate performance score
We've compared Radeon RX 6600 LE with GeForce RTX 5090 Mobile, including specs and performance data.
RTX 5090 Mobile outperforms RX 6600 LE by an impressive 84% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 110 | 18 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 20.90 | 53.38 |
| Architecture | RDNA 2.0 (2020−2024) | Blackwell 2.0 (2025) |
| GPU code name | Navi 23 | GB203 |
| Market segment | Desktop | Laptop |
| Release date | 8 December 2023 (1 year ago) | 2025 (recently) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 1792 | 10496 |
| Core clock speed | 1626 MHz | 990 MHz |
| Boost clock speed | 2495 MHz | 1515 MHz |
| Number of transistors | 11,060 million | 45,600 million |
| Manufacturing process technology | 7 nm | 4 nm |
| Power consumption (TDP) | 132 Watt | 95 Watt |
| Texture fill rate | 279.4 | 496.9 |
| Floating-point processing power | 8.942 TFLOPS | 31.8 TFLOPS |
| ROPs | 64 | 128 |
| TMUs | 112 | 328 |
| Tensor Cores | no data | 328 |
| Ray Tracing Cores | 28 | 82 |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 4.0 x8 | PCIe 5.0 x16 |
| Length | 190 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 8-pin | no data |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR6 | GDDR7 |
| Maximum RAM amount | 8 GB | 24 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 1750 MHz | 2000 MHz |
| Memory bandwidth | 224.0 GB/s | 811.5 GB/s |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x HDMI 2.1, 3x DisplayPort 1.4a | 1x HDMI 2.1b, 3x DisplayPort 2.1b |
| HDMI | + | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.7 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.3 | 1.4 |
| CUDA | - | 10.1 |
| DLSS | - | + |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 38.75 | 71.23 |
| Maximum RAM amount | 8 GB | 24 GB |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 132 Watt | 95 Watt |
RTX 5090 Mobile has a 83.8% higher aggregate performance score, a 200% higher maximum VRAM amount, a 75% more advanced lithography process, and 38.9% lower power consumption.
The GeForce RTX 5090 Mobile is our recommended choice as it beats the Radeon RX 6600 LE in performance tests.
Be aware that Radeon RX 6600 LE is a desktop card while GeForce RTX 5090 Mobile is a notebook one.
Other comparisons
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