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GeForce GTX 470 vs Radeon HD 7870

Intro

The GeForce GTX 470 features core clock 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 TAUs and 40 ROPs.

Compare that to the Radeon HD 7870, which features core clock speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs along with 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

Theoretically speaking, the Radeon HD 7870 is 15% quicker than the GeForce GTX 470 overall, due to its greater bandwidth. (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 (more or less 135%) faster with regards to texture filtering than the GeForce GTX 470. (explain)

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

Pixel Rate

The Radeon HD 7870 should be a lot (more or less 32%) better at full screen anti-aliasing than the GeForce GTX 470, and also will be able to handle higher screen resolutions without losing too much performance. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units 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 per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max 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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