AMD Radeon R9 390 vs AMD Radeon RX 6900 XT

Compare AMD Radeon R9 390 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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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

1919 points

14121 points

635% significantly better overall score

Flux Core frame rate

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

44 FPS

286 FPS

242 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

28 FPS

208 FPS

179 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

39 FPS

257 FPS

217 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

15 FPS

122 FPS

107 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

3950 points

4065 points

2% slightly higher 3DMark Graphics score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

46328 points

170008 points

266% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

49594 points

114610 points

131% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

43704 points

167644 points

283% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

51251 points

171121 points

233% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1000 MHz

1825 MHz

82% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1000 MHz

2250 MHz

125% significantly higher boost clock speed

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

512 Bit

100% significantly larger memory bus width

256 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

384 GB/s

512 GB/s

33% slightly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

275 W

9% slightly lower TDP

300 W

Pixel Rate

Number of pixels that can be rendered per second

64 Gigapixels/s

288 Gigapixels/s

350% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

160 Gigatexels/s

720 Gigatexels/s

350% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

5.12 TFLOPS

23.04 TFLOPS

350% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2560

5120

100% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

160

320

100% 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

215th of 586

24th of 586

Family

The product line

Radeon R9 300 Series

Radeon RX 6000 Series

Release date

The official date of release of this chip

2015 June

2020 August

Memory Type

The type of memory used by this chip

GDDR5

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

4.6

Radeon R9 390 vs Radeon RX 6900 XT benchmarks

In our benchmarks, the Radeon RX 6900 XT beats the Radeon R9 390 in gaming performance.

In our comparison, the Radeon RX 6900 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 6900 XT also has a significantly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

Furthermore, the spec sheet for both these GPUs show that 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 R9 390 has a slightly lower TDP at 275 W when compared to the Radeon RX 6900 XT at 300 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 6900 XT over the Radeon R9 390.