GeForce 920M vs Radeon HD 7950

Intro

Compare all that to the Radeon HD 7950, which features a clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 384-bit bus, and uses a 28 nm design. It features 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

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 7950		7731 points
GeForce 920M		1180 points
	Difference: 6551 (555%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7950 is 1567% faster than the GeForce 920M overall, due to its higher bandwidth. (explain)

Radeon HD 7950		240000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 225600 (1567%)

Texel Rate

The Radeon HD 7950 should be much (more or less 194%) better at anisotropic filtering than the GeForce 920M. (explain)

Radeon HD 7950		89600 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 59072 (194%)

Pixel Rate

The Radeon HD 7950 will be a lot (more or less 235%) more effective at anti-aliasing than the GeForce 920M, and capable of handling higher resolutions more effectively. (explain)

Radeon HD 7950		25600 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 17968 (235%)

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 largest amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's interface 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 bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units 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 maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.