GeForce 930M vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which features a clock frequency of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is made up of 800 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

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 6770		1520 points
GeForce 930M		1490 points
	Difference: 30 (2%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 6770 should perform a lot faster than the GeForce 930M in general. (explain)

Radeon HD 6770		67200 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 52800 (367%)

Texel Rate

The Radeon HD 6770 should be much (more or less 62%) better at texture filtering than the GeForce 930M. (explain)

Radeon HD 6770		36000 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 13728 (62%)

Pixel Rate

The Radeon HD 6770 should be a lot (about 94%) better at anti-aliasing than the GeForce 930M, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 6770		14400 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 6976 (94%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 applied per second. This is calculated by multiplying the total number of texture units of the card by the core 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 in a second.

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