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GeForce GTX 470 vs Radeon HD 7870

Intro

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

Compare all of that to the Radeon HD 7870, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory is set to run at a speed of 1200 MHz on this specific model. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7870 6230 points
GeForce GTX 470 2937 points
Difference: 3293 (112%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 175 Watts
GeForce GTX 470 215 Watts
Difference: 40 Watts (23%)

Memory Bandwidth

Performance-wise, the Radeon HD 7870 should in theory be just a bit superior to the GeForce GTX 470 in general. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 470 133920 MB/sec
Difference: 19680 (15%)

Texel Rate

The Radeon HD 7870 should be quite a bit (about 135%) better at anisotropic filtering than the GeForce GTX 470. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 46008 (135%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 7870 is the winner, by a large margin. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 470 24280 Mpixels/sec
Difference: 7720 (32%)

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 7870

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 7870
Manufacturer nVidia AMD
Year March 2010 March 2012
Code Name GF100 Pitcairn XT
Memory 1280 MB 2048 MB
Core Speed 607 MHz 1000 MHz
Memory Speed 3348 MHz 4800 MHz
Power (Max TDP) 215 watts 175 watts
Bandwidth 133920 MB/sec 153600 MB/sec
Texel Rate 33992 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 448 1280
Texture Mapping Units 56 80
Render Output Units 40 32
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at 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 the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 7870

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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