GeForce GTX 260 vs Radeon R7 240

Intro

Compare all that to the Radeon R7 240, which has core clock speeds of 730 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs along with 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 GTX 260		182 Watts
	Difference: 152 Watts (507%)

Memory Bandwidth

Performance-wise, the GeForce GTX 260 should in theory be a lot better than the Radeon R7 240 in general. (explain)

GeForce GTX 260		111888 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 83088 (289%)

Texel Rate

The GeForce GTX 260 will be quite a bit (more or less 152%) better at AF than the Radeon R7 240. (explain)

GeForce GTX 260		36864 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 22264 (152%)

Pixel Rate

The GeForce GTX 260 is quite a bit (about 176%) faster with regards to full screen anti-aliasing than the Radeon R7 240, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 260		16128 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 10288 (176%)

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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling 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 write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.