GeForce 940M vs GeForce GT 320

Intro

Compare that to the GeForce GT 320, which makes use of a 40 nm design. nVidia has set the core speed at 540 MHz. The GDDR3 memory is set to run at a frequency of 790 MHz on this model. It features 72 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GT 320 should be quite a bit faster than the GeForce 940M in general. (explain)

GeForce GT 320		25280 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 9280 (58%)

Texel Rate

The GeForce 940M will be quite a bit (approximately 99%) faster with regards to AF than the GeForce GT 320. (explain)

GeForce 940M		25728 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 12768 (99%)

Pixel Rate

The GeForce 940M is much (approximately 99%) more effective at anti-aliasing than the GeForce GT 320, and also should be able to handle higher resolutions more effectively. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 4256 (99%)

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 data (counted in megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. 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 memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of 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 per second.

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