GeForce GT 240 GDDR5 1GB vs Radeon R9 295X2

Intro

Compare all of that to the Radeon R9 295X2, which has a core clock frequency of 1018 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 512-bit memory bus, and uses a 28 nm design. It features 2816 SPUs, 176 TAUs, and 64 ROPs.

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

The Radeon R9 295X2 should theoretically be much faster than the GeForce GT 240 GDDR5 1GB in general. (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 much (approximately 1936%) faster with regards to AF 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 quite a bit (approximately 2861%) faster with regards to full screen anti-aliasing than the GeForce GT 240 GDDR5 1GB, and able to handle 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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the 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 most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.