GeForce GT 315 vs GeForce GTX 460 SE

Intro

Compare that to the GeForce GTX 460 SE, which has a clock speed of 650 MHz and a GDDR5 memory frequency of 850 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It is comprised of 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 should theoretically perform much faster than the GeForce GT 315 overall. (explain)

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

Texel Rate

The GeForce GTX 460 SE will be a lot (about 212%) better at 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 should be quite a bit (approximately 316%) better at full screen anti-aliasing than the GeForce GT 315, and should be capable of handling higher resolutions better. (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 maximum amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 reach the max fill rate.