GeForce 930M vs Radeon HD 5970

Intro

Compare those specs to the Radeon HD 5970, which comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 1600 SPUs along with 160 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5970 should perform quite a bit faster than the GeForce 930M overall. (explain)

Radeon HD 5970		256000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 241600 (1678%)

Texel Rate

The Radeon HD 5970 is quite a bit (approximately 942%) more effective at AF than the GeForce 930M. (explain)

Radeon HD 5970		232000 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 209728 (942%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5970 is superior to the GeForce 930M, by a large margin. (explain)

Radeon HD 5970		92800 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 85376 (1150%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock 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 output rate also depends 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.