GeForce GT 240 GDDR5 vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which features a core clock frequency of 1020 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GT 240 GDDR5		70 Watts
	Difference: 15 Watts (27%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should theoretically be much superior to the GeForce GT 240 GDDR5 overall. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 25600 (47%)

Texel Rate

The GeForce GTX 750 will be much (approximately 85%) faster with regards to AF than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 15040 (85%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 750 is a better choice, by far. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 11920 (271%)

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 largest amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.