GeForce GT 315 vs GeForce GTX Titan Black

Intro

Compare those specs to the GeForce GTX Titan Black, which has GPU core speed of 889 MHz, and 6144 MB of GDDR5 RAM set to run at 1750 MHz through a 384-bit bus. It also is made up of 2880 SPUs, 240 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 198 Watts (381%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan Black should in theory be much better than the GeForce GT 315 overall. (explain)

GeForce GTX Titan Black		336000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 310720 (1229%)

Texel Rate

The GeForce GTX Titan Black is much (approximately 2034%) better at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 203360 (2034%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX Titan Black is a better choice, by far. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 37672 (753%)

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 maximum amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few 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.