AMD Radeon RX 6500 XT vs NVIDIA GeForce GTX 660

Compare AMD Radeon RX 6500 XT 4 GB vs NVIDIA GeForce GTX 660 3 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Benchmark Score

Overall Score

General gaming and workstation score

3023 points

270% significantly better overall score

816 points

Flux Core frame rate

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

64 FPS

45 FPS significantly higher Flux Core frame rate

18 FPS

Electron frame rate

Randomly generated noise sphere test

46 FPS

35 FPS significantly higher Electron frame rate

11 FPS

City frame rate

Procedurally generated city scene with voxel rendering

56 FPS

43 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

26 FPS

16 FPS significantly higher Clouds frame rate

9 FPS

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

4965 points

276% significantly higher 3DMark Graphics score

1317 points

Blender score

Cycles Render (Samples per minute)

422.78 points

244% significantly higher Blender score

122.56 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

52512 points

361% significantly higher Geekbench 5 (OpenCL) score

11381 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

39991 points

273% significantly higher Geekbench 5 (Vulkan) score

10693 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

50916 points

348% significantly higher Geekbench 6 (OpenCL) score

11353 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

59288 points

399% significantly higher Geekbench 6 (Vulkan) score

11858 points

Specifications

Core Clock Speed

Nominal chip frequency

2310 MHz

135% significantly higher core clock speed

980 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2815 MHz

172% significantly higher boost clock speed

1032 MHz

Memory

Onboard memory size for textures and vertices

4 GiB

33% slightly more memory

3 GiB

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

192 Bit

200% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

144 GB/s

144.2 GB/s

0.14% slightly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

107 W

30% slightly lower TDP

140 W

Pixel Rate

Number of pixels that can be rendered per second

90.1 Gigapixels/s

336% significantly higher pixel rate

20.64 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

180.2 Gigatexels/s

118% significantly higher texture rate

82.56 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

5.77 TFLOPS

191% significantly better floating point performance

1.98 TFLOPS

Shading Units

Number of processors dedicated to shader processing

1024

6% slightly more shading units

960

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

33% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

154th of 586

277th of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2022 January

Memory Type

The type of memory used by this chip

GDDR6

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.0

OpenGL Support

Maximum version of OpenGL supported

4.6

4.5

Radeon RX 6500 XT vs GeForce GTX 660 benchmarks

For gaming, the Radeon RX 6500 XT graphics card is better than the GeForce GTX 660 in our tests.

Our database shows that the Radeon RX 6500 XT has a significantly 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 6500 XT also has a significantly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 6500 XT has slightly more memory with 4 GiB of memory compared to 3 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.

In addition, the Radeon RX 6500 XT has a slightly lower TDP at 107 W when compared to the GeForce GTX 660 at 140 W. 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 6500 XT over the GeForce GTX 660.