Radeon HD 3850 X2 vs Radeon R7 M265

Intro

Compare that to the Radeon R7 M265, which comes with clock speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 3850 X2 should theoretically perform much faster than the Radeon R7 M265 overall. (explain)

Radeon HD 3850 X2		105984 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 73984 (231%)

Texel Rate

The Radeon HD 3850 X2 should be quite a bit (about 23%) more effective at AF than the Radeon R7 M265. (explain)

Radeon HD 3850 X2		21376 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 3976 (23%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 3850 X2 is the winner, by far. (explain)

Radeon HD 3850 X2		21376 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 15576 (269%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, 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 most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.