GeForce GT 315 vs GeForce GTX 480

Intro

Compare those specifications to the GeForce GTX 480, which features a core clock frequency of 700 MHz and a GDDR5 memory speed of 924 MHz. It also makes use of a 384-bit 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.

Display Graphs

Hide Graphs

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

Theoretically, the GeForce GTX 480 should be much faster than the GeForce GT 315 overall. (explain)

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

Texel Rate

The GeForce GTX 480 is a lot (approximately 320%) more effective at AF than the GeForce GT 315. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 480 is superior to the GeForce GT 315, by far. (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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.