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GeForce GTX 480 vs Radeon HD 7870 XT

Intro

The GeForce GTX 480 features a core clock speed of 700 MHz and a GDDR5 memory frequency of 924 MHz. It also features a 384-bit memory bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 60 Texture Address Units, and 48 Raster Operation Units.

Compare those specifications to the Radeon HD 7870 XT, which has a clock frequency of 925 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1536 SPUs, 96 Texture Address Units, 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

As far as performance goes, the Radeon HD 7870 XT should in theory be a little bit superior to 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 will be quite a bit (approximately 111%) faster with regards to 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

If running with lots of anti-aliasing is important to you, then the GeForce GTX 480 is a better choice, but it probably won't make a huge difference. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, 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 texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few 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 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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