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Radeon HD 4870 X2 vs Radeon RX 560

Intro

The Radeon HD 4870 X2 features a GPU clock speed of 750 MHz, and the 1024 MB of GDDR5 RAM is set to run at 900 MHz through a 256-bit bus. It also is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.

Compare that to the Radeon RX 560, which comes with a core clock frequency of 1175 MHz and a GDDR5 memory frequency of 7000 MHz. It also features a 128-bit memory bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 Texture Address Units, and 16 Raster Operation 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

The Radeon HD 4870 X2, in theory, should perform quite a bit faster than the Radeon RX 560 in general. (explain)

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

Texel Rate

The Radeon RX 560 is a lot (approximately 25%) faster with regards to texture filtering 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 quite a bit (approximately 28%) more effective at AA than the Radeon RX 560, and should be able to handle 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: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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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.

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