GeForce 920M vs GeForce GT 310

Intro

Compare those specs to the GeForce GT 310, which has GPU clock speed of 589 MHz, and 512 MB of DDR2 RAM set to run at 1000 MHz through a 64-bit bus. It also features 16 SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 310 should be 11% quicker than the GeForce 920M overall, because of its higher data rate. (explain)

GeForce GT 310		16000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 1600 (11%)

Texel Rate

The GeForce 920M should be much (more or less 548%) more effective at AF than the GeForce GT 310. (explain)

GeForce 920M		30528 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 25816 (548%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 920M is a better choice, by a large margin. (explain)

GeForce 920M		7632 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 5276 (224%)

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 information (measured in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR 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 number of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.