GeForce GT 340 1GB vs GeForce GTX 950M

Intro

Compare all that to the GeForce GTX 950M, which features 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 features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GT 340 1GB		69 Watts
	Difference: 14 Watts (25%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 340 1GB should perform quite a bit faster than the GeForce GTX 950M in general. (explain)

GeForce GT 340 1GB		54400 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 22400 (70%)

Texel Rate

The GeForce GTX 950M is quite a bit (more or less 108%) better at texture filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 18960 (108%)

Pixel Rate

The GeForce GTX 950M is much (more or less 232%) better at AA than the GeForce GT 340 1GB, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce GT 340 1GB		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 megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.