AMD Radeon RX 6600 XT vs AMD Radeon RX 6800 XT

Compare AMD Radeon RX 6600 XT 8 GB vs AMD Radeon RX 6800 XT 16 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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AMD Radeon RX 6800 XT

Price

The cheapest price from our partner retailers

$ 369.99

$ 289.01 significantly less expensive

$ 659.00

Benchmark Score

Overall Score

General gaming and workstation score

5600 points

11265 points

101% significantly better overall score

Flux Core frame rate

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

116 FPS

231 FPS

115 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

85 FPS

167 FPS

82 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

102 FPS

204 FPS

102 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

49 FPS

97 FPS

49 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

9727 points

19436 points

99% significantly higher 3DMark Graphics score

Blender score

Cycles Render (Samples per minute)

1068.60 points

2414.65 points

125% significantly higher Blender score

Geekbench 5 (Metal) score

Metal compute benchmark

83409 points

150488 points

80% significantly higher Geekbench 5 (Metal) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

82559 points

157812 points

91% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

64460 points

100571 points

56% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (Metal) score

Metal compute benchmark

109165 points

200077 points

83% significantly higher Geekbench 6 (Metal) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

82739 points

154801 points

87% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

93271 points

157877 points

69% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1968 MHz

2015 MHz

2% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

2589 MHz

15% slightly higher boost clock speed

2250 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

16 GiB

100% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

256 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

256 GB/s

512 GB/s

100% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

160 W

87% significantly lower TDP

300 W

Pixel Rate

Number of pixels that can be rendered per second

165.7 Gigapixels/s

288 Gigapixels/s

73% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

331.4 Gigatexels/s

648 Gigatexels/s

95% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

10.6 TFLOPS

20.74 TFLOPS

95% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2048

4608

125% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

128

288

125% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

128

100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

90th of 586

33rd of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2021 November

2020 November

Memory Type

The type of memory used by this chip

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 6600 XT vs Radeon RX 6800 XT comparison

For gaming, the Radeon RX 6800 XT graphics card is better than the Radeon RX 6600 XT in our tests.

The Radeon RX 6800 XT has a slightly 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. Despite this, the Radeon RX 6600 XT 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.

As stated by the manufacturer, the Radeon RX 6800 XT has significantly more memory with 16 GiB of memory compared to 8 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 6600 XT has a significantly lower TDP at 160 W when compared to the Radeon RX 6800 XT at 300 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 6800 XT is better than the Radeon RX 6600 XT.