GeForce GTX 275 vs Radeon R7 M265

Intro

Compare that to the Radeon R7 M265, which features GPU core speed of 725 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 275 should perform quite a bit faster than the Radeon R7 M265 overall. (explain)

GeForce GTX 275		127008 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 95008 (297%)

Texel Rate

The GeForce GTX 275 should be much (about 191%) faster with regards to AF than the Radeon R7 M265. (explain)

GeForce GTX 275		50640 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 33240 (191%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 275 is a better choice, and very much so. (explain)

GeForce GTX 275		17724 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 11924 (206%)

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 data (in units of megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.