GeForce GT 340 vs GeForce GTX 950M

Intro

Compare all that to the GeForce GTX 950M, which comes with a core clock frequency of 914 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is made up 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 GT 340		69 Watts
	Difference: 14 Watts (25%)

Memory Bandwidth

As far as performance goes, the GeForce GT 340 should in theory be much better than the GeForce GTX 950M in general. (explain)

GeForce GT 340		54400 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 22400 (70%)

Texel Rate

The GeForce GTX 950M will be a lot (about 108%) better at anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 18960 (108%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 950M is the winner, by a large margin. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 10224 (232%)

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 largest amount of data (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.