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Radeon HD 4870 2GB vs Radeon RX 560

Intro

The Radeon HD 4870 2GB comes with a GPU core speed of 750 MHz, and the 2048 MB of GDDR5 RAM is set to run at 900 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon RX 560, which has core clock speeds of 1175 MHz on the GPU, and 7000 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs along with 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

The Radeon HD 4870 2GB should theoretically perform a little bit faster than 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 is much (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

The Radeon RX 560 is much (about 57%) faster with regards to full screen anti-aliasing than the Radeon HD 4870 2GB, and also will be capable of handling higher resolutions without slowing down too much. (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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high 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 by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach 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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