AMD Radeon RX 580X vs AMD Radeon RX 6650 XT

Compare AMD Radeon RX 580X 8 GB vs AMD Radeon RX 6650 XT 8 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

2318 points

5943 points

156% significantly better overall score

Flux Core frame rate

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

47 FPS

126 FPS

79 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

35 FPS

89 FPS

54 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

51 FPS

110 FPS

60 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

19 FPS

52 FPS

33 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

41822 points

87496 points

109% significantly higher Geekbench 6 (OpenCL) score

Specifications

Core Clock Speed

Nominal chip frequency

1257 MHz

2055 MHz

63% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1340 MHz

2635 MHz

96% significantly higher boost clock speed

Memory

Onboard memory size for textures and vertices

8 GiB

Identical

8 GiB

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

100% significantly larger memory bus width

128 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

256 GB/s

280.3 GB/s

9% slightly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

185 W

176 W

5% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

42.88 Gigapixels/s

168.6 Gigapixels/s

293% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

192.96 Gigatexels/s

337.3 Gigatexels/s

74% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

6.18 TFLOPS

10.79 TFLOPS

74% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2304

12% slightly more shading units

2048

Texture Mapping Units

Number of processors dedicated to applying textures

144

12% slightly more texture mapping units

128

Render Output Processors

Number of processors dedicated to final pixel rendering

100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

189th of 586

82nd of 586

Family

The product line

Radeon RX 500X Series

Radeon RX 6000 Series

Release date

The official date of release of this chip

2018 March

2022 May

Memory Type

The type of memory used by this chip

GDDR5

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 580X vs Radeon RX 6650 XT specs and performance

For gaming, the Radeon RX 6650 XT graphics card is better than the Radeon RX 580X in our tests.

Our database shows that the Radeon RX 6650 XT has a significantly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the Radeon RX 6650 XT also has a significantly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Next up, in terms of GPU memory, they both have the same amount of memory at 8 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 6650 XT has a slightly lower TDP at 176 W when compared to the Radeon RX 580X at 185 W. TDP (Thermal Design Power) measures total heat output from the chip.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 6650 XT over the Radeon RX 580X.