AMD Radeon RX 6600 XT vs NVIDIA GeForce GTX 660 Ti

Compare AMD Radeon RX 6600 XT 8 GB vs NVIDIA GeForce GTX 660 Ti 3 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
Specifications
Comments (0)
Popular Comparisons

GPU Comparison

Quickly search and compare graphics cards

Benchmark Score

Overall Score

General gaming and workstation score

5600 points

383% significantly better overall score

1159 points

Flux Core frame rate

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

116 FPS

89 FPS significantly higher Flux Core frame rate

27 FPS

Electron frame rate

Randomly generated noise sphere test

85 FPS

69 FPS significantly higher Electron frame rate

16 FPS

City frame rate

Procedurally generated city scene with voxel rendering

102 FPS

84 FPS significantly higher City frame rate

18 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

49 FPS

36 FPS significantly higher Clouds frame rate

13 FPS

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 6600 XT and the GeForce GTX 660 Ti? Download our free and quick PC Performance Test.

Download GPU Benchmark

Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

9727 points

495% significantly higher 3DMark Graphics score

1634 points

Blender score

Cycles Render (Samples per minute)

1068.60 points

608% significantly higher Blender score

150.80 points

Geekbench 5 (Metal) score

Metal compute benchmark

83409 points

1150% significantly higher Geekbench 5 (Metal) score

6670 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

82559 points

463% significantly higher Geekbench 5 (OpenCL) score

14647 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

64460 points

342% significantly higher Geekbench 5 (Vulkan) score

14555 points

Geekbench 6 (Metal) score

Metal compute benchmark

109165 points

1536% significantly higher Geekbench 6 (Metal) score

6670 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

82739 points

440% significantly higher Geekbench 6 (OpenCL) score

15295 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

93271 points

477% significantly higher Geekbench 6 (Vulkan) score

16140 points

Specifications

Core Clock Speed

Nominal chip frequency

1968 MHz

115% significantly higher core clock speed

915 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2589 MHz

164% significantly higher boost clock speed

980 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

166% significantly more memory

3 GiB

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

192 Bit

49% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

256 GB/s

77% significantly higher memory bandwidth

144.2 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

160 W

150 W

6% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

165.7 Gigapixels/s

503% significantly higher pixel rate

27.44 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

331.4 Gigatexels/s

201% significantly higher texture rate

109.8 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

10.6 TFLOPS

302% significantly better floating point performance

2.63 TFLOPS

Shading Units

Number of processors dedicated to shader processing

2048

52% significantly more shading units

1344

Texture Mapping Units

Number of processors dedicated to applying textures

128

14% slightly more texture mapping units

112

Render Output Processors

Number of processors dedicated to final pixel rendering

166% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

90th of 586

254th of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2021 November

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 6600 XT vs GeForce GTX 660 Ti specs and performance

In our benchmarks, the Radeon RX 6600 XT beats the GeForce GTX 660 Ti in gaming performance.

In our comparison, the Radeon RX 6600 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 6600 XT 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 6600 XT has significantly more memory with 8 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 Ti has a slightly lower TDP at 150 W when compared to the Radeon RX 6600 XT at 160 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

According to the results of the hardwareDB benchmark utility, the Radeon RX 6600 XT is faster than the GeForce GTX 660 Ti.