NVIDIA GeForce GTX 660 vs AMD Radeon RX 7900 XTX

Compare NVIDIA GeForce GTX 660 3 GB vs AMD Radeon RX 7900 XTX 24 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

816 points

24895 points

2950% significantly better overall score

Flux Core frame rate

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

18 FPS

529 FPS

510 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

11 FPS

351 FPS

340 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

477 FPS

465 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

9 FPS

207 FPS

198 FPS significantly higher Clouds frame rate

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

1317 points

6837 points

419% significantly higher 3DMark Graphics score

Blender score

Cycles Render (Samples per minute)

122.56 points

4050.95 points

3205% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11353 points

212685 points

1773% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

11858 points

238996 points

1915% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

980 MHz

1855 MHz

89% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1032 MHz

2500 MHz

142% significantly higher boost clock speed

Memory

Onboard memory size for textures and vertices

3 GiB

24 GiB

700% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

192 Bit

384 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

144.2 GB/s

960 GB/s

565% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

140 W

153% significantly lower TDP

355 W

Pixel Rate

Number of pixels that can be rendered per second

20.64 Gigapixels/s

480 Gigapixels/s

2225% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

82.56 Gigatexels/s

960 Gigatexels/s

1062% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

1.98 TFLOPS

61.42 TFLOPS

3000% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

960

6144

540% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

384

380% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

192

700% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

276th of 586

3rd of 586

Family

The product line

Radeon RX 7000 Series

Release date

The official date of release of this chip

2022 December

Memory Type

The type of memory used by this chip

GDDR5

GDDR6

DirectX Support

Maximum version of DirectX supported

11.0

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

4.6

GeForce GTX 660 vs Radeon RX 7900 XTX comparison

According to the hardwareDB Benchmark, the Radeon RX 7900 XTX GPU is faster than the GeForce GTX 660 in gaming.

Our database shows that the Radeon RX 7900 XTX 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 7900 XTX also has a significantly 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.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 7900 XTX has significantly more memory with 24 GiB of memory compared to 3 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the GeForce GTX 660 has a significantly lower TDP at 140 W when compared to the Radeon RX 7900 XTX at 355 W. Heat output doesn't match power consumption directly but, it's a good estimate.

According to the results of the hardwareDB benchmark utility, the Radeon RX 7900 XTX is faster than the GeForce GTX 660.