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GeForce GTX 480 vs Radeon HD 7850

Intro

The GeForce GTX 480 uses a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR5 RAM runs at a frequency of 924 MHz on this particular card. It features 480 SPUs along with 60 TAUs and 48 Rasterization Operator Units.

Compare all that to the Radeon HD 7850, which has GPU clock speed of 860 MHz, and 2048 MB of GDDR5 memory set to run at 1200 MHz through a 256-bit bus. It also is made up of 1024 Stream Processors, 64 TAUs, and 32 Raster Operation 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 7850 5200 points
GeForce GTX 480 3650 points
Difference: 1550 (42%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
GeForce GTX 480 250 Watts
Difference: 120 Watts (92%)

Memory Bandwidth

The GeForce GTX 480 should theoretically perform a bit faster than the Radeon HD 7850 in general. (explain)

GeForce GTX 480 177408 MB/sec
Radeon HD 7850 153600 MB/sec
Difference: 23808 (16%)

Texel Rate

The Radeon HD 7850 is a lot (approximately 31%) better at texture filtering than the GeForce GTX 480. (explain)

Radeon HD 7850 55040 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 13040 (31%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 480 is superior to the Radeon HD 7850, by far. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 6080 (22%)

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 7850

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 7850
Manufacturer nVidia AMD
Year March 2010 March 2012
Code Name GF100 Pitcairn Pro
Memory 1536 MB 2048 MB
Core Speed 700 MHz 860 MHz
Memory Speed 3696 MHz 4800 MHz
Power (Max TDP) 250 watts 130 watts
Bandwidth 177408 MB/sec 153600 MB/sec
Texel Rate 42000 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 480 1024
Texture Mapping Units 60 64
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-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 max amount of data (in units of MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the 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 speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon HD 7850

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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