GeForce GT 315 vs GeForce GTX 570

Intro

Compare those specifications to the GeForce GTX 570, which features a core clock frequency of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also makes use of a 320-bit bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 60 Texture Address Units, and 40 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 570		219 Watts
	Difference: 167 Watts (321%)

Memory Bandwidth

The GeForce GTX 570, in theory, should be quite a bit faster than the GeForce GT 315 in general. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 126720 (501%)

Texel Rate

The GeForce GTX 570 is quite a bit (more or less 339%) more effective at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 33920 (339%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 570 is the winner, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 24280 (486%)

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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling 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 record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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 get to the maximum fill rate.