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Radeon HD 4870 2GB vs Radeon RX 560

Intro

The Radeon HD 4870 2GB makes use of a 55 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR5 memory runs at a speed of 900 MHz on this model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the Radeon RX 560, which has core clock speeds of 1175 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs as well as 64 Texture Address Units and 16 ROPs.

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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

Performance-wise, the Radeon HD 4870 2GB should theoretically be a small bit superior to the Radeon RX 560 overall. (explain)

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

Texel Rate

The Radeon RX 560 should be quite a bit (approximately 151%) faster with regards to 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

If running with high levels of AA is important to you, then the Radeon RX 560 is superior to the Radeon HD 4870 2GB, and very much so. (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

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Radeon RX 560

Amazon.com

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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 7000 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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max 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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