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GeForce GTX 480 vs Radeon HD 3470 512MB

Intro

The GeForce GTX 480 features a GPU core clock speed of 700 MHz, and the 1536 MB of GDDR5 RAM runs at 924 MHz through a 384-bit bus. It also is made up of 480 SPUs, 60 TAUs, and 48 ROPs.

Compare that to the Radeon HD 3470 512MB, which uses a 55 nm design. AMD has set the core speed at 800 MHz. The GDDR3 memory runs at a speed of 950 MHz on this specific model. It features 40(8x5) SPUs along with 4 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 480 should be 484% faster than the Radeon HD 3470 512MB overall, due to its greater bandwidth. (explain)

GeForce GTX 480 177408 MB/sec
Radeon HD 3470 512MB 30400 MB/sec
Difference: 147008 (484%)

Texel Rate

The GeForce GTX 480 is much (more or less 1213%) more effective at AF than the Radeon HD 3470 512MB. (explain)

GeForce GTX 480 42000 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 38800 (1213%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 480 is superior to the Radeon HD 3470 512MB, by a large margin. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 30400 (950%)

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

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Radeon HD 3470 512MB

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 3470 512MB
Manufacturer nVidia AMD
Year March 2010 2008
Code Name GF100 RV620 PRO
Memory 1536 MB 512 MB
Core Speed 700 MHz 800 MHz
Memory Speed 3696 MHz 1900 MHz
Power (Max TDP) 250 watts (Unknown) watts
Bandwidth 177408 MB/sec 30400 MB/sec
Texel Rate 42000 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 480 40(8x5)
Texture Mapping Units 60 4
Render Output Units 48 4
Bus Type GDDR5 GDDR3
Bus Width 384-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 3000 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon HD 3470 512MB

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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