Radeon HD 4350 vs Radeon R5 M255

Intro

Compare all that to the Radeon R5 M255, which has clock speeds of 940 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 320 SPUs along with 20 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R5 M255 should be a lot faster than the Radeon HD 4350 overall. (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 (approximately 309%) better at AF than the Radeon HD 4350. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R5 M255 is the winner, by far. (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 information (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that are applied per second. This 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.