GeForce GT 240 GDDR5 1GB vs GeForce GTX 950

Intro

Compare all of that to the GeForce GTX 950, which has GPU core speed of 1024 MHz, and 2048 MB of GDDR5 RAM set to run at 1652 MHz through a 128-bit bus. It also is comprised of 768 SPUs, 48 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 950		90 Watts
	Difference: 20 Watts (29%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950 should perform quite a bit faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 51328 (94%)

Texel Rate

The GeForce GTX 950 will be quite a bit (about 179%) better at anisotropic filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 31552 (179%)

Pixel Rate

The GeForce GTX 950 should be much (approximately 645%) more effective at AA than the GeForce GT 240 GDDR5 1GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 28368 (645%)

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 data (measured in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.