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GeForce GTX 560 vs Radeon HD 4870 1GB

Intro

The GeForce GTX 560 has a GPU clock speed of 810 MHz, and the 1024 MB of GDDR5 memory runs at 1001 MHz through a 256-bit bus. It also features 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare all that to the Radeon HD 4870 1GB, which features core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 should theoretically be a bit superior to the Radeon HD 4870 1GB in general. (explain)

GeForce GTX 560 128128 MB/sec
Radeon HD 4870 1GB 115200 MB/sec
Difference: 12928 (11%)

Texel Rate

The GeForce GTX 560 should be much (more or less 51%) better at anisotropic filtering than the Radeon HD 4870 1GB. (explain)

GeForce GTX 560 45360 Mtexels/sec
Radeon HD 4870 1GB 30000 Mtexels/sec
Difference: 15360 (51%)

Pixel Rate

The GeForce GTX 560 is a lot (approximately 116%) more effective at anti-aliasing than the Radeon HD 4870 1GB, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 560 25920 Mpixels/sec
Radeon HD 4870 1GB 12000 Mpixels/sec
Difference: 13920 (116%)

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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GeForce GTX 560

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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 GeForce GTX 560 Radeon HD 4870 1GB
Manufacturer nVidia AMD
Year May 2011 Jun 25, 2008
Code Name GF114 RV770 XT
Memory 1024 MB 1024 MB
Core Speed 810 MHz 750 MHz
Memory Speed 4004 MHz 3600 MHz
Power (Max TDP) 150 watts 150 watts
Bandwidth 128128 MB/sec 115200 MB/sec
Texel Rate 45360 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 25920 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 336 800(160x5)
Texture Mapping Units 56 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 956 million
Bus PCIe 2.0 x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units 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 in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. 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 reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 560

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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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