GeForce GT 315 vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 797 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this specific card. It features 1152 SPUs as well as 96 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GT 315		52 Watts
	Difference: 7 Watts (16%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should perform much faster than the GeForce GT 315 in general. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 38720 (153%)

Texel Rate

The GeForce GTX 860M will be much (approximately 665%) better at anisotropic filtering than the GeForce GT 315. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 66512 (665%)

Pixel Rate

The GeForce GTX 860M should be much (approximately 155%) more effective at AA than the GeForce GT 315, and also will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 7752 (155%)

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 max amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.