GeForce GTX 260 Core 216 vs Radeon R7 M265

Intro

Compare all that to the Radeon R7 M265, which comes with a core clock frequency of 725 MHz and a DDR3 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 Core 216 will be 250% faster than the Radeon R7 M265 overall, because of its greater data rate. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 79888 (250%)

Texel Rate

The GeForce GTX 260 Core 216 is a lot (more or less 138%) faster with regards to AF than the Radeon R7 M265. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 24072 (138%)

Pixel Rate

The GeForce GTX 260 Core 216 will be a lot (about 178%) more effective at anti-aliasing than the Radeon R7 M265, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 10328 (178%)

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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of 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 this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out 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 outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.