Radeon HD 4350 vs Radeon R5 M255

Intro

Compare that to the Radeon R5 M255, which uses a 28 nm design. AMD has clocked the core speed at 940 MHz. The DDR3 memory works at a frequency of 1000 MHz on this particular card. It features 320 SPUs as well as 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R5 M255 should theoretically be quite a bit superior to the Radeon HD 4350 in general. (explain)

Radeon R5 M255		16000 MB/sec
Radeon HD 4350		8000 MB/sec
	Difference: 8000 (100%)

Texel Rate

The Radeon R5 M255 will be quite a bit (more or less 309%) more effective at texture filtering than the Radeon HD 4350. (explain)

Radeon R5 M255		18800 Mtexels/sec
Radeon HD 4350		4600 Mtexels/sec
	Difference: 14200 (309%)

Pixel Rate

The Radeon R5 M255 will be much (about 227%) more effective at anti-aliasing than the Radeon HD 4350, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R5 M255		7520 Mpixels/sec
Radeon HD 4350		2300 Mpixels/sec
	Difference: 5220 (227%)

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 transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one 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 called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.