GeForce 940M vs GeForce GT 240 GDDR5 1GB

Intro

Compare those specs to the GeForce GT 240 GDDR5 1GB, which uses a 40 nm design. nVidia has clocked the core frequency at 550 MHz. The GDDR5 memory runs at a speed of 850 MHz on this particular model. It features 96 SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GT 240 GDDR5 1GB should be 240% quicker than the GeForce 940M in general, because of its greater data rate. (explain)

GeForce GT 240 GDDR5 1GB		54400 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 38400 (240%)

Texel Rate

The GeForce 940M is quite a bit (about 46%) better at texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce 940M		25728 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 8128 (46%)

Pixel Rate

The GeForce 940M will be much (approximately 95%) faster with regards to AA than the GeForce GT 240 GDDR5 1GB, and also will be capable of handling higher resolutions better. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 4176 (95%)

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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better 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 most pixels the video card can possibly record to its local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.