GeForce GT 240 GDDR5 1GB vs Radeon R9 295X2

Intro

Compare all of that to the Radeon R9 295X2, which comes with GPU clock speed of 1018 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
Radeon R9 295X2		500 Watts
	Difference: 430 Watts (614%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 295X2 will be 1076% quicker than the GeForce GT 240 GDDR5 1GB overall, because of its higher data rate. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 585600 (1076%)

Texel Rate

The Radeon R9 295X2 will be a lot (approximately 1936%) more effective at texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 340736 (1936%)

Pixel Rate

The Radeon R9 295X2 should be much (approximately 2861%) more effective at anti-aliasing than the GeForce GT 240 GDDR5 1GB, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 125904 (2861%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video 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 maximum amount of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.