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Radeon HD 4870 X2 vs Radeon RX 560

Intro

The Radeon HD 4870 X2 comes with clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Compare all that to the Radeon RX 560, which has clock speeds of 1175 MHz on the GPU, and 7000 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560 80 Watts
Radeon HD 4870 X2 350 Watts
Difference: 270 Watts (338%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4870 X2 is 101% faster than the Radeon RX 560 in general, due to its higher data rate. (explain)

Radeon HD 4870 X2 230400 MB/sec
Radeon RX 560 114688 MB/sec
Difference: 115712 (101%)

Texel Rate

The Radeon RX 560 should be much (approximately 25%) faster with regards to AF than the Radeon HD 4870 X2. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 4870 X2 60000 Mtexels/sec
Difference: 15200 (25%)

Pixel Rate

The Radeon HD 4870 X2 will be a lot (about 28%) more effective at anti-aliasing than the Radeon RX 560, and will be capable of handling higher screen resolutions better. (explain)

Radeon HD 4870 X2 24000 Mpixels/sec
Radeon RX 560 18800 Mpixels/sec
Difference: 5200 (28%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon HD 4870 X2

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 4870 X2 Radeon RX 560
Manufacturer AMD AMD
Year Aug 12, 2008 May 2017
Code Name R700 Baffin
Memory 1024 MB (x2) 4096 MB
Core Speed 750 MHz (x2) 1175 MHz
Memory Speed 3600 MHz (x2) 28000 MHz
Power (Max TDP) 350 watts 80 watts
Bandwidth 230400 MB/sec 114688 MB/sec
Texel Rate 60000 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 24000 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 800(160x5) (x2) 1024
Texture Mapping Units 40 (x2) 64
Render Output Units 16 (x2) 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 55 nm 14 nm
Transistors 956 million 3000 million
Bus PCIe 2.0 x16 (PCIe bridge) PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.6

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4870 X2

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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