GeForce 930M vs Radeon HD 7970

Intro

Compare all of that to the Radeon HD 7970, which has clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator 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 7970		8225 points
GeForce 930M		1490 points
	Difference: 6735 (452%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon HD 7970 should be much faster than the GeForce 930M overall. (explain)

Radeon HD 7970		264000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 249600 (1733%)

Texel Rate

The Radeon HD 7970 should be a lot (more or less 432%) more effective at anisotropic filtering than the GeForce 930M. (explain)

Radeon HD 7970		118400 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 96128 (432%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 7970 is superior to the GeForce 930M, and very much so. (explain)

Radeon HD 7970		29600 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 22176 (299%)

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 information (in units of megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.