GeForce GTX 650 Ti 2GB vs GeForce GTX 950M

Intro

Compare all that to the GeForce GTX 950M, which has a core clock frequency of 914 MHz and a DDR3 memory speed of 1000 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 55 Watts (100%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 Ti 2GB should be 170% faster than the GeForce GTX 950M in general, due to its greater data rate. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 54400 (170%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be quite a bit (more or less 62%) better at AF than the GeForce GTX 950M. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 22832 (62%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 650 Ti 2GB is a better choice, but only just. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 224 (2%)

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 moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.