GeForce 825M vs Radeon R7 M260X

Intro

Compare all that to the Radeon R7 M260X, which uses a 28 nm design. AMD has set the core speed at 825 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this model. It features 384 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 M260X should theoretically be much faster than the GeForce 825M overall. (explain)

Radeon R7 M260X		64000 MB/sec
GeForce 825M		14400 MB/sec
	Difference: 49600 (344%)

Texel Rate

The Radeon R7 M260X will be a lot (approximately 46%) more effective at anisotropic filtering than the GeForce 825M. (explain)

Radeon R7 M260X		19800 Mtexels/sec
GeForce 825M		13600 Mtexels/sec
	Difference: 6200 (46%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 825M is a better choice, though only just barely. (explain)

GeForce 825M		6800 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 200 (3%)

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 over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure 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 filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.