GeForce 930M vs Radeon HD 6850

Intro

Compare all of that to the Radeon HD 6850, which features a core clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is comprised of 960 SPUs, 48 TAUs, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6850		2395 points
GeForce 930M		1490 points
	Difference: 905 (61%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 6850 should theoretically be quite a bit better than the GeForce 930M overall. (explain)

Radeon HD 6850		128000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 113600 (789%)

Texel Rate

The Radeon HD 6850 is a lot (about 67%) faster with regards to texture filtering than the GeForce 930M. (explain)

Radeon HD 6850		37200 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 14928 (67%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6850 is the winner, and very much so. (explain)

Radeon HD 6850		24800 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 17376 (234%)

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 max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.