GeForce GT 315 vs GeForce GTX 650 Ti 2GB

Intro

Compare those specs to the GeForce GTX 650 Ti 2GB, which makes use of a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 RAM is set to run at a frequency of 1350 MHz on this specific card. It features 768 SPUs as well as 64 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 58 Watts (112%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti 2GB is 242% faster than the GeForce GT 315 in general, because of its higher data rate. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 61120 (242%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be a lot (more or less 494%) faster with regards to texture filtering than the GeForce GT 315. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 49392 (494%)

Pixel Rate

The GeForce GTX 650 Ti 2GB is much (about 197%) better at anti-aliasing than the GeForce GT 315, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 9848 (197%)

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 moved over the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.