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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 features 800(160x5) Stream Processors, 40 Texture Address Units, and 16 ROPs.

Compare all that to the Radeon RX 560, which has a clock speed of 1175 MHz and a GDDR5 memory frequency of 7000 MHz. It also makes use of a 128-bit bus, and uses a 14 nm design. It is made up of 1024 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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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 should theoretically be much faster than the Radeon RX 560 overall. (explain)

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

Texel Rate

The Radeon RX 560 will be 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

If running with high levels of AA is important to you, then the Radeon HD 4870 X2 is the winner, and very much so. (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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, 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 figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics card can possibly record to its local memory per 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 is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max 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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