GeForce GT 315 vs GeForce GTX 750 Ti

Intro

Compare that to the GeForce GTX 750 Ti, which has GPU core speed of 1020 MHz, and 2048 MB of GDDR5 memory set to run at 1350 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 750 Ti		60 Watts
	Difference: 8 Watts (15%)

Memory Bandwidth

In theory, the GeForce GTX 750 Ti should be a lot faster than the GeForce GT 315 overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 61120 (242%)

Texel Rate

The GeForce GTX 750 Ti is a lot (approximately 308%) more effective at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 30800 (308%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 750 Ti is a better choice, by far. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 11320 (226%)

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 information (counted in MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.