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Radeon HD 4870 X2 vs Radeon RX 560

Intro

The Radeon HD 4870 X2 uses a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR5 RAM runs at a speed of 900 MHz on this specific card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon RX 560, which makes use of a 14 nm design. AMD has clocked the core speed at 1175 MHz. The GDDR5 memory works at a speed of 7000 MHz on this particular card. It features 1024 SPUs along with 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

In theory, the Radeon HD 4870 X2 should be 101% faster than the Radeon RX 560 overall, due to its higher bandwidth. (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 quite a bit (about 25%) better at 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%) better at AA than the Radeon RX 560, and also capable of handling higher resolutions more effectively. (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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to 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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