AMD Radeon RX 6600 XT vs AMD Radeon RX 6900 XT

Compare AMD Radeon RX 6600 XT 8 GB vs AMD Radeon RX 6900 XT 16 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Price

The cheapest price from our partner retailers

$ 369.99
$ 260.00 significantly less expensive
$ 629.99

Benchmark Score

Overall Score

General gaming and workstation score

5600 points
14121 points
152% significantly better overall score

Flux Core frame rate

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

116 FPS
286 FPS
170 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

85 FPS
208 FPS
122 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

102 FPS
257 FPS
155 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

49 FPS
122 FPS
74 FPS significantly higher Clouds frame rate

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 6600 XT and the Radeon RX 6900 XT? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Graphics score

3DMark Graphics score

High-end graphics benchmark

9727 points
139% significantly higher 3DMark Graphics score
4065 points
Blender score

Blender score

Cycles Render (Samples per minute)

1068.60 points
2478.22 points
131% significantly higher Blender score
Geekbench 5 (Metal) score

Geekbench 5 (Metal) score

Metal compute benchmark

83409 points
159528 points
91% significantly higher Geekbench 5 (Metal) score
Geekbench 5 (OpenCL) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

82559 points
170008 points
105% significantly higher Geekbench 5 (OpenCL) score
Geekbench 5 (Vulkan) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

64460 points
114610 points
77% significantly higher Geekbench 5 (Vulkan) score
Geekbench 6 (Metal) score

Geekbench 6 (Metal) score

Metal compute benchmark

109165 points
208130 points
90% significantly higher Geekbench 6 (Metal) score
Geekbench 6 (OpenCL) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

82739 points
167644 points
102% significantly higher Geekbench 6 (OpenCL) score
Geekbench 6 (Vulkan) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

93271 points
171121 points
83% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1968 MHz
7% slightly higher core clock speed
1825 MHz

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
720 Gigatexels/s
117% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

10.6 TFLOPS
23.04 TFLOPS
117% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2048
5120
150% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

128
320
150% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

64
128
100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

90th of 586
24th of 586

Family

The product line

Radeon RX 6000 Series
Radeon RX 6000 Series

Release date

The official date of release of this chip

2021 November
2020 August

Memory Type

The type of memory used by this chip

GDDR6
GDDR6

DirectX Support

Maximum version of DirectX supported

12.0
12.0

OpenGL Support

Maximum version of OpenGL supported

4.6
4.6

Radeon RX 6600 XT vs Radeon RX 6900 XT comparison

In our benchmarks, the Radeon RX 6900 XT beats the Radeon RX 6600 XT in gaming performance.

Our database shows that the Radeon RX 6600 XT has a slightly 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 6600 XT also 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 6900 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 6900 XT at 300 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 6900 XT is faster than the Radeon RX 6600 XT.

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