Radeon HD 4350 vs Radeon R5 M255

Intro

Compare those specs to the Radeon R5 M255, which comes with a GPU core clock speed of 940 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 64-bit bus. It also is made up of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R5 M255 is 100% faster than the Radeon HD 4350 in general, due to its greater data rate. (explain)

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

Texel Rate

The Radeon R5 M255 is a lot (more or less 309%) faster with regards to anisotropic filtering than the Radeon HD 4350. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R5 M255 is a better choice, by a large margin. (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 (in units of megabytes per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 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 amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.