AMD Radeon R9 390 vs AMD Radeon RX 7800 XT

Compare AMD Radeon R9 390 8 GB vs AMD Radeon RX 7800 XT 16 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

1919 points

15475 points

706% significantly better overall score

Flux Core frame rate

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

44 FPS

326 FPS

281 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

28 FPS

216 FPS

187 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

39 FPS

295 FPS

256 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

15 FPS

127 FPS

111 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

3950 points

4154 points

5% slightly higher 3DMark Graphics score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

43704 points

142590 points

226% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

51251 points

157875 points

208% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1000 MHz

1800 MHz

79% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1000 MHz

2430 MHz

143% 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

624 GB/s

62% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

275 W

263 W

4% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

64 Gigapixels/s

233 Gigapixels/s

264% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

160 Gigatexels/s

583 Gigatexels/s

264% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

5.12 TFLOPS

36.04 TFLOPS

603% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2560

8192

220% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

160

240

49% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

49% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

215th of 586

17th of 586

Family

The product line

Radeon R9 300 Series

Radeon RX 7000 Series

Release date

The official date of release of this chip

2015 June

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 7800 XT benchmarks

According to the hardwareDB Benchmark, the Radeon RX 7800 XT GPU is faster than the Radeon R9 390 in gaming.

The Radeon RX 7800 XT has a significantly 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 7800 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.

As stated by the manufacturer, the Radeon RX 7800 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 7800 XT has a slightly lower TDP at 263 W when compared to the Radeon R9 390 at 275 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 7800 XT over the Radeon R9 390.