AMD Radeon RX 550X vs NVIDIA GeForce GTX 660M

Compare AMD Radeon RX 550X 4 GB vs NVIDIA GeForce GTX 660M 2 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

464 points

108% significantly better overall score

223 points

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

11 FPS

5 FPS significantly higher Flux Core frame rate

5 FPS

Electron frame rate

Randomly generated noise sphere test

8 FPS

5 FPS significantly higher Electron frame rate

3 FPS

City frame rate

Procedurally generated city scene with voxel rendering

12 FPS

8 FPS significantly higher City frame rate

3 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

1 FPS significantly higher Clouds frame rate

2 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

12373 points

239% significantly higher Geekbench 5 (OpenCL) score

3649 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

13079 points

271% significantly higher Geekbench 5 (Vulkan) score

3524 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11245 points

181% significantly higher Geekbench 6 (OpenCL) score

3991 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

12485 points

254% significantly higher Geekbench 6 (Vulkan) score

3524 points

Specifications

Core Clock Speed

Nominal chip frequency

1100 MHz

15% slightly higher core clock speed

950 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1287 MHz

35% slightly higher boost clock speed

950 MHz

Memory

Onboard memory size for textures and vertices

4 GiB

100% significantly more memory

2 GiB

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

Identical

128 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

112 GB/s

75% significantly higher memory bandwidth

64 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

50 W

Identical

50 W

Pixel Rate

Number of pixels that can be rendered per second

20.6 Gigapixels/s

171% significantly higher pixel rate

7.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

51.48 Gigatexels/s

69% significantly higher texture rate

30.4 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

512

33% slightly more shading units

384

Texture Mapping Units

Number of processors dedicated to applying textures

25% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

334th of 586

411th of 586

Family

The product line

Radeon RX 500X Series

Release date

The official date of release of this chip

2018 March

2012 March

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.2

OpenGL Support

Maximum version of OpenGL supported

4.6

4.5

Radeon RX 550X vs GeForce GTX 660M benchmarks

In our benchmarks, the Radeon RX 550X beats the GeForce GTX 660M in gaming performance.

Our database shows that the Radeon RX 550X has a slightly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. In addition, the Radeon RX 550X also has a slightly higher boost clock speed. The boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

Next up, in terms of GPU memory, the Radeon RX 550X has significantly more memory with 4 GiB of memory compared to 2 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, both the Radeon RX 550X and the GeForce GTX 660M have an identical TDP. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 550X over the GeForce GTX 660M.