GeForce GT 315 vs GeForce GTX 460 SE

Intro

Compare that to the GeForce GTX 460 SE, which has a core clock speed of 650 MHz and a GDDR5 memory frequency of 850 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It features 288 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 98 Watts (188%)

Memory Bandwidth

The GeForce GTX 460 SE, in theory, should be quite a bit faster than the GeForce GT 315 in general. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 83520 (330%)

Texel Rate

The GeForce GTX 460 SE should be quite a bit (approximately 212%) faster with regards to anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 21200 (212%)

Pixel Rate

The GeForce GTX 460 SE is much (more or less 316%) better at full screen anti-aliasing than the GeForce GT 315, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 15800 (316%)

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 max amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, 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 maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.