GeForce 8800 Ultra vs Radeon R7 240

Intro

Compare all of that to the Radeon R7 240, which comes with a GPU core clock speed of 730 MHz, and 2048 MB of DDR3 RAM set to run at 900 MHz through a 128-bit bus. It also is made up of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 141 Watts (470%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 Ultra should theoretically be quite a bit better than the Radeon R7 240 overall. (explain)

GeForce 8800 Ultra		103680 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 74880 (260%)

Texel Rate

The GeForce 8800 Ultra should be a lot (approximately 168%) better at texture filtering than the Radeon R7 240. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 24568 (168%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 8800 Ultra is the winner, by a large margin. (explain)

GeForce 8800 Ultra		14688 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 8848 (152%)

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 max amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.