GeForce GT 315 vs GeForce GTX 980

Intro

Compare those specifications to the GeForce GTX 980, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1126 MHz. The GDDR5 RAM runs at a speed of 1750 MHz on this particular model. It features 2048 SPUs along with 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 980		165 Watts
	Difference: 113 Watts (217%)

Memory Bandwidth

The GeForce GTX 980 should in theory be much faster than the GeForce GT 315 overall. (explain)

GeForce GTX 980		224000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 198720 (786%)

Texel Rate

The GeForce GTX 980 will be quite a bit (more or less 1341%) better at texture filtering than the GeForce GT 315. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 134128 (1341%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980 is superior to the GeForce GT 315, and very much so. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 67064 (1341%)

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 data (in units of MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 applied per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.