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Radeon HD 4870 2GB vs Radeon RX 560

Intro

The Radeon HD 4870 2GB comes with clock speeds of 750 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Compare 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 RAM. It features 1024 SPUs as well as 64 TAUs 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 2GB 150 Watts
Difference: 70 Watts (88%)

Memory Bandwidth

In theory, the Radeon HD 4870 2GB should be a small bit faster than the Radeon RX 560 in general. (explain)

Radeon HD 4870 2GB 115200 MB/sec
Radeon RX 560 114688 MB/sec
Difference: 512 (0%)

Texel Rate

The Radeon RX 560 will be a lot (approximately 151%) more effective at anisotropic filtering than the Radeon HD 4870 2GB. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 4870 2GB 30000 Mtexels/sec
Difference: 45200 (151%)

Pixel Rate

The Radeon RX 560 is much (about 57%) better at AA than the Radeon HD 4870 2GB, and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 560 18800 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 6800 (57%)

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.

Price Comparison

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Radeon HD 4870 2GB

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 2GB Radeon RX 560
Manufacturer AMD AMD
Year Jun 25, 2008 May 2017
Code Name RV770 XT Baffin
Memory 2048 MB 4096 MB
Core Speed 750 MHz 1175 MHz
Memory Speed 3600 MHz 28000 MHz
Power (Max TDP) 150 watts 80 watts
Bandwidth 115200 MB/sec 114688 MB/sec
Texel Rate 30000 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 12000 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 800(160x5) 1024
Texture Mapping Units 40 64
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 14 nm
Transistors 956 million 3000 million
Bus PCIe 2.0 x16 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 information (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon HD 4870 2GB

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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