GeForce GT 340 vs GeForce GTX 950M

Intro

Compare that to the GeForce GTX 950M, which features GPU clock speed of 914 MHz, and 2048 MB of DDR3 memory running at 1000 MHz through a 128-bit bus. It also features 640 Stream Processors, 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

Theoretically speaking, the GeForce GT 340 should perform quite a bit faster 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 much (more or less 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

The GeForce GTX 950M is much (about 232%) more effective at full screen anti-aliasing than the GeForce GT 340, and also will be capable of handling higher screen resolutions more effectively. (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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that can be applied per second. This figure 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 graphics card will be at handling 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 could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.