GeForce GT 315 vs GeForce GTX 560 Ti 448

Intro

Compare that to the GeForce GTX 560 Ti 448, which uses a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 RAM works at a speed of 900 MHz on this specific card. It features 448 SPUs along with 56 Texture Address Units and 40 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 158 Watts (304%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should theoretically be quite a bit superior to the GeForce GT 315 overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 118720 (470%)

Texel Rate

The GeForce GTX 560 Ti 448 is much (approximately 310%) faster with regards to anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 30992 (310%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, and very much so. (explain)

GeForce GTX 560 Ti 448		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: Bandwidth is the maximum amount of information (in units of MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 number is calculated by multiplying the total number 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 number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 reach the maximum fill rate.