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GeForce GTX 470 vs Radeon HD 5870

Intro

The GeForce GTX 470 has clock speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 memory. It features 448 SPUs as well as 56 Texture Address Units and 40 Rasterization Operator Units.

Compare all of that to the Radeon HD 5870, which features clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 RAM. It features 1600(320x5) SPUs as well as 80 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5870 188 Watts
GeForce GTX 470 215 Watts
Difference: 27 Watts (14%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5870 should be 15% faster than the GeForce GTX 470 overall, because of its higher bandwidth. (explain)

Radeon HD 5870 153600 MB/sec
GeForce GTX 470 133920 MB/sec
Difference: 19680 (15%)

Texel Rate

The Radeon HD 5870 will be much (about 100%) faster with regards to texture filtering than the GeForce GTX 470. (explain)

Radeon HD 5870 68000 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 34008 (100%)

Pixel Rate

The Radeon HD 5870 will be a little bit (about 12%) better at FSAA than the GeForce GTX 470, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 5870 27200 Mpixels/sec
GeForce GTX 470 24280 Mpixels/sec
Difference: 2920 (12%)

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 470

Amazon.com

Check prices at:

Radeon HD 5870

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 470 Radeon HD 5870
Manufacturer nVidia AMD
Year March 2010 September 23, 2009
Code Name GF100 Cypress XT
Memory 1280 MB 1024 MB
Core Speed 607 MHz 850 MHz
Memory Speed 3348 MHz 4800 MHz
Power (Max TDP) 215 watts 188 watts
Bandwidth 133920 MB/sec 153600 MB/sec
Texel Rate 33992 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 448 1600(320x5)
Texture Mapping Units 56 80
Render Output Units 40 32
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 2154 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 are applied per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 5870

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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