GeForce 9800 GX2 vs Radeon R7 240

Intro

Compare those specs to the Radeon R7 240, which features core clock speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 memory. It features 320 SPUs as well as 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce 9800 GX2		197 Watts
	Difference: 167 Watts (557%)

Memory Bandwidth

Theoretically, the GeForce 9800 GX2 should perform much faster than the Radeon R7 240 overall. (explain)

GeForce 9800 GX2		128000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The GeForce 9800 GX2 will be much (approximately 426%) more effective at texture filtering than the Radeon R7 240. (explain)

GeForce 9800 GX2		76800 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 62200 (426%)

Pixel Rate

The GeForce 9800 GX2 is quite a bit (approximately 229%) faster with regards to AA than the Radeon R7 240, and capable of handling higher screen resolutions better. (explain)

GeForce 9800 GX2		19200 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 13360 (229%)

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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.