GeForce 920M vs GeForce GT 340

Intro

Compare those specifications to the GeForce GT 340, which has core speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 memory. It features 96 SPUs along with 32 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 340 will be 278% quicker than the GeForce 920M overall, due to its higher data rate. (explain)

GeForce GT 340		54400 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 40000 (278%)

Texel Rate

The GeForce 920M is a lot (about 73%) more effective at texture filtering than the GeForce GT 340. (explain)

GeForce 920M		30528 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 12928 (73%)

Pixel Rate

The GeForce 920M is much (more or less 73%) faster with regards to full screen anti-aliasing than the GeForce GT 340, and will be able to handle higher screen resolutions better. (explain)

GeForce 920M		7632 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 3232 (73%)

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 maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.