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GeForce GT 315 vs GeForce GTX 480

Intro

The GeForce GT 315 features core speeds of 625 MHz on the GPU, and 790 MHz on the 512 MB of DDR3 memory. It features 48 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare all of that to the GeForce GTX 480, which features 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 TAUs and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315 52 Watts
GeForce GTX 480 250 Watts
Difference: 198 Watts (381%)

Memory Bandwidth

In theory, the GeForce GTX 480 should be 602% quicker than the GeForce GT 315 in general, due to its higher bandwidth. (explain)

GeForce GTX 480 177408 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 152128 (602%)

Texel Rate

The GeForce GTX 480 is quite a bit (about 320%) more effective at texture filtering than the GeForce GT 315. (explain)

GeForce GTX 480 42000 Mtexels/sec
GeForce GT 315 10000 Mtexels/sec
Difference: 32000 (320%)

Pixel Rate

The GeForce GTX 480 should be a lot (about 572%) better at AA than the GeForce GT 315, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 480 33600 Mpixels/sec
GeForce GT 315 5000 Mpixels/sec
Difference: 28600 (572%)

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 GT 315

Amazon.com

Check prices at:

GeForce GTX 480

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

Display Specifications

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Model GeForce GT 315 GeForce GTX 480
Manufacturer nVidia nVidia
Year November 2009 March 2010
Code Name GT216 GF100
Memory 512 MB 1536 MB
Core Speed 625 MHz 700 MHz
Memory Speed 1580 MHz 3696 MHz
Power (Max TDP) 52 watts 250 watts
Bandwidth 25280 MB/sec 177408 MB/sec
Texel Rate 10000 Mtexels/sec 42000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 33600 Mpixels/sec
Unified Shaders 48 480
Texture Mapping Units 16 60
Render Output Units 8 48
Bus Type DDR3 GDDR5
Bus Width 128-bit 384-bit
Fab Process 40 nm 40 nm
Transistors 486 million 3000 million
Bus PCIe 2.0 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GT 315

Amazon.com

Check prices at:

GeForce GTX 480

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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