Radeon HD 6970 vs Radeon R5 M330

Intro

Compare those specs to the Radeon R5 M330, which comes with a core clock frequency of 1030 MHz and a DDR3 memory frequency of 900 MHz. It also uses a 64-bit memory bus, and uses a 28 nm design. It is comprised of 320 SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 6970, in theory, should perform much faster than the Radeon R5 M330 overall. (explain)

Radeon HD 6970		176000 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 161600 (1122%)

Texel Rate

The Radeon HD 6970 is quite a bit (more or less 310%) more effective at anisotropic filtering than the Radeon R5 M330. (explain)

Radeon HD 6970		84480 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 63880 (310%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6970 is the winner, and very much so. (explain)

Radeon HD 6970		28160 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 19920 (242%)

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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a 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 figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.