Radeon HD 5770 vs Radeon R5 M230

Intro

Compare all that to the Radeon R5 M230, which makes use of a 28 nm design. AMD has set the core frequency at 780 MHz. The DDR3 RAM is set to run at a frequency of 1000 MHz on this model. It features 320 SPUs as well as 20 Texture Address Units and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5770 should perform much faster than the Radeon R5 M230 in general. (explain)

Radeon HD 5770		76800 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 60800 (380%)

Texel Rate

The Radeon HD 5770 should be quite a bit (more or less 118%) faster with regards to AF than the Radeon R5 M230. (explain)

Radeon HD 5770		34000 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 18400 (118%)

Pixel Rate

The Radeon HD 5770 will be quite a bit (approximately 336%) faster with regards to anti-aliasing than the Radeon R5 M230, and should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 5770		13600 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 10480 (336%)

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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. 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 memory bandwidth is, the lower the ability to get to the maximum fill rate.