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GeForce GTX 480 vs Radeon HD 7870 XT

Intro

The GeForce GTX 480 comes with core clock speeds of 700 MHz on the GPU, and 924 MHz on the 1536 MB of GDDR5 RAM. It features 480 SPUs along with 60 Texture Address Units and 48 ROPs.

Compare those specifications to the Radeon HD 7870 XT, which has core speeds of 925 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 TAUs and 32 ROPs.

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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 XT 6390 points
GeForce GTX 480 3650 points
Difference: 2740 (75%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT 185 Watts
GeForce GTX 480 250 Watts
Difference: 65 Watts (35%)

Memory Bandwidth

The Radeon HD 7870 XT should theoretically be just a bit faster than the GeForce GTX 480 overall. (explain)

Radeon HD 7870 XT 192000 MB/sec
GeForce GTX 480 177408 MB/sec
Difference: 14592 (8%)

Texel Rate

The Radeon HD 7870 XT should be much (more or less 111%) better at texture filtering than the GeForce GTX 480. (explain)

Radeon HD 7870 XT 88800 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 46800 (111%)

Pixel Rate

The GeForce GTX 480 will be just a bit (about 14%) faster with regards to AA than the Radeon HD 7870 XT, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon HD 7870 XT 29600 Mpixels/sec
Difference: 4000 (14%)

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 480

Amazon.com

Check prices at:

Radeon HD 7870 XT

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 480 Radeon HD 7870 XT
Manufacturer nVidia AMD
Year March 2010 November 2012
Code Name GF100 Tahiti LE
Memory 1536 MB 2048 MB
Core Speed 700 MHz 925 MHz
Memory Speed 3696 MHz 6000 MHz
Power (Max TDP) 250 watts 185 watts
Bandwidth 177408 MB/sec 192000 MB/sec
Texel Rate 42000 Mtexels/sec 88800 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 480 1536
Texture Mapping Units 60 96
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon HD 7870 XT

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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