GeForce 825M vs Radeon R7 M265

Intro

Compare all that to the Radeon R7 M265, which makes use of a 28 nm design. AMD has set the core speed at 725 MHz. The DDR3 memory runs at a speed of 1000 MHz on this card. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 M265, in theory, should be a lot faster than the GeForce 825M in general. (explain)

Radeon R7 M265		32000 MB/sec
GeForce 825M		14400 MB/sec
	Difference: 17600 (122%)

Texel Rate

The Radeon R7 M265 is much (about 28%) faster with regards to anisotropic filtering than the GeForce 825M. (explain)

Radeon R7 M265		17400 Mtexels/sec
GeForce 825M		13600 Mtexels/sec
	Difference: 3800 (28%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 825M is a better choice, but not by far. (explain)

GeForce 825M		6800 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 1000 (17%)

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 largest amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.