Radeon HD 6950 2GB vs Radeon R5 M230

Intro

Compare those specifications to the Radeon R5 M230, which has a GPU core clock speed of 780 MHz, and 2048 MB of DDR3 RAM running at 1000 MHz through a 64-bit bus. It also features 320 SPUs, 20 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 6950 2GB should theoretically perform a lot faster than the Radeon R5 M230 overall. (explain)

Radeon HD 6950 2GB		160000 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 144000 (900%)

Texel Rate

The Radeon HD 6950 2GB should be much (more or less 351%) more effective at texture filtering than the Radeon R5 M230. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 54800 (351%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6950 2GB is a better choice, by far. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 22480 (721%)

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 MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 can be processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.