GeForce GT 315 vs GeForce GTX 465

Intro

Compare that to the GeForce GTX 465, which has GPU core speed of 607 MHz, and 1024 MB of GDDR5 RAM set to run at 802 MHz through a 256-bit bus. It also is made up of 352 Stream Processors, 44 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 465		200 Watts
	Difference: 148 Watts (285%)

Memory Bandwidth

The GeForce GTX 465 should theoretically perform a lot faster than the GeForce GT 315 overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 77312 (306%)

Texel Rate

The GeForce GTX 465 is much (approximately 167%) better at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 465		26708 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 16708 (167%)

Pixel Rate

The GeForce GTX 465 is much (about 288%) more effective at anti-aliasing than the GeForce GT 315, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 14424 (288%)

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 (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high 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 number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at 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 graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 potential to reach the maximum fill rate.