AMD Radeon R9 390 vs AMD Radeon R9 390X

Compare AMD Radeon R9 390 8 GB vs AMD Radeon R9 390X 8 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

2852% significantly better overall score

65 points

Flux Core frame rate

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

44 FPS

20 FPS significantly higher Flux Core frame rate

25 FPS

Electron frame rate

Randomly generated noise sphere test

28 FPS

6 FPS slightly higher Electron frame rate

23 FPS

City frame rate

Procedurally generated city scene with voxel rendering

39 FPS

9 FPS significantly higher City frame rate

30 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

15 FPS

1 FPS slightly higher Clouds frame rate

14 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

3950 points

4254 points

7% slightly higher 3DMark Graphics score

Specifications

Core Clock Speed

Nominal chip frequency

1000 MHz

1050 MHz

5% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1000 MHz

1050 MHz

5% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

8 GiB

Identical

8 GiB

Memory Bus Width

Number of parallel lines to the memory chips

512 Bit

Identical

512 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

384 GB/s

Identical

384 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

275 W

Identical

275 W

Pixel Rate

Number of pixels that can be rendered per second

64 Gigapixels/s

67.2 Gigapixels/s

5% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

160 Gigatexels/s

184.8 Gigatexels/s

15% slightly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

5.12 TFLOPS

5.91 TFLOPS

15% slightly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2560

2816

10% slightly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

160

176

10% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

215th of 586

536th of 586

Family

The product line

Radeon R9 300 Series

Release date

The official date of release of this chip

2015 June

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

Radeon R9 390 vs Radeon R9 390X benchmarks

In our benchmarks, the Radeon R9 390 beats the Radeon R9 390X in gaming performance.

The Radeon R9 390X 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 R9 390X 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.

Next up, in terms of GPU memory, they both have the same amount of memory at 8 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, both the Radeon R9 390 and the Radeon R9 390X have an identical TDP. 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 R9 390 over the Radeon R9 390X.