GeForce GTX 260 216SP 55 nm vs Radeon R7 240

Intro

Compare all of 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 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 GTX 260 216SP 55 nm		171 Watts
	Difference: 141 Watts (470%)

Memory Bandwidth

Performance-wise, the GeForce GTX 260 216SP 55 nm should theoretically be much superior to the Radeon R7 240 in general. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 83088 (289%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is a lot (about 184%) better at texture filtering than the Radeon R7 240. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 26872 (184%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 260 216SP 55 nm is the winner, and very much so. (explain)

GeForce GTX 260 216SP 55 nm		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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.