Radeon HD 5570 vs Radeon R7 M265

Intro

Compare all of that to the Radeon R7 M265, which features core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M265 will be 11% quicker than the Radeon HD 5570 overall, due to its higher data rate. (explain)

Radeon R7 M265		32000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The Radeon R7 M265 will be quite a bit (approximately 34%) more effective at texture filtering than the Radeon HD 5570. (explain)

Radeon R7 M265		17400 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 4400 (34%)

Pixel Rate

The Radeon R7 M265 should be a little bit (about 12%) better at AA than the Radeon HD 5570, and also able to handle higher resolutions better. (explain)

Radeon R7 M265		5800 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 600 (12%)

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 (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 its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.