AMD Radeon RX 560 vs AMD Radeon HD 7990

Compare AMD Radeon RX 560 4 GB vs AMD Radeon HD 7990 3 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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AMD Radeon HD 7990

Price

The cheapest price from our partner retailers

$ 149.39

$ 525.57 significantly less expensive

$ 674.96

Benchmark Score

Overall Score

General gaming and workstation score

825 points

1743 points

111% significantly better overall score

Flux Core frame rate

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

18 FPS

41 FPS

22 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

12 FPS

25 FPS

13 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

18 FPS

35 FPS

17 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

6 FPS

14 FPS

7 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Specifications

Core Clock Speed

Nominal chip frequency

1175 MHz

23% slightly higher core clock speed

950 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1275 MHz

27% slightly higher boost clock speed

1000 MHz

Memory

Onboard memory size for textures and vertices

4 GiB

33% slightly more memory

3 GiB

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

384 Bit

200% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

112 GB/s

288 GB/s

157% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

80 W

368% significantly lower TDP

375 W

Pixel Rate

Number of pixels that can be rendered per second

20.4 Gigapixels/s

32 Gigapixels/s

56% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

81.6 Gigatexels/s

128 Gigatexels/s

56% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

2.61 TFLOPS

4.10 TFLOPS

56% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

1024

2048

100% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

128

100% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

275th of 586

223rd of 586

Family

The product line

Radeon RX 500 Series

Radeon HD 7000 Series

Release date

The official date of release of this chip

2017 April

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.2

OpenGL Support

Maximum version of OpenGL supported

4.5

4.4

Radeon RX 560 vs Radeon HD 7990 comparison

In our benchmarks, the Radeon HD 7990 beats the Radeon RX 560 in gaming performance.

Our database shows that the Radeon RX 560 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. In addition, the Radeon RX 560 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.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 560 has slightly more memory with 4 GiB of memory compared to 3 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 560 has a significantly lower TDP at 80 W when compared to the Radeon HD 7990 at 375 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 HD 7990 is faster than the Radeon RX 560.