GeForce GT 315 vs GeForce GTX 460

Intro

Compare those specs to the GeForce GTX 460, which comes with core clock speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 RAM. It features 336 SPUs as well as 56 TAUs and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the GeForce GTX 460 should theoretically be a lot superior to the GeForce GT 315 in general. (explain)

GeForce GTX 460		86400 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 61120 (242%)

Texel Rate

The GeForce GTX 460 will be much (approximately 278%) more effective at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 27800 (278%)

Pixel Rate

The GeForce GTX 460 should be a lot (approximately 224%) better at anti-aliasing than the GeForce GT 315, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 11200 (224%)

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 largest amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many 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.