GeForce 830M vs Radeon R7 M260X

Intro

Compare those specs to the Radeon R7 M260X, which features a clock frequency of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M260X will be 344% faster than the GeForce 830M overall, because of its higher data rate. (explain)

Radeon R7 M260X		64000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 49600 (344%)

Texel Rate

The Radeon R7 M260X should be just a bit (approximately 20%) faster with regards to anisotropic filtering than the GeForce 830M. (explain)

Radeon R7 M260X		19800 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 3336 (20%)

Pixel Rate

The GeForce 830M should be much (about 25%) faster with regards to AA than the Radeon R7 M260X, and capable of handling higher resolutions more effectively. (explain)

GeForce 830M		8232 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 1632 (25%)

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 (measured in MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.