Radeon HD 6770 1GB vs Radeon R5 M230

Intro

Compare those specs to the Radeon R5 M230, which comes with core clock speeds of 780 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs as well as 20 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 6770 1GB should perform quite a bit faster than the Radeon R5 M230 in general. (explain)

Radeon HD 6770 1GB		67200 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 51200 (320%)

Texel Rate

The Radeon HD 6770 1GB will be a lot (more or less 131%) better at texture filtering than the Radeon R5 M230. (explain)

Radeon HD 6770 1GB		36000 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 20400 (131%)

Pixel Rate

The Radeon HD 6770 1GB will be quite a bit (about 362%) faster with regards to FSAA than the Radeon R5 M230, and also will be capable of handling higher resolutions better. (explain)

Radeon HD 6770 1GB		14400 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 11280 (362%)

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 MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.