GeForce 920M vs Radeon HD 7750

Intro

Compare all of that to the Radeon HD 7750, which has core speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs along with 32 TAUs and 16 ROPs.

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 7750		2240 points
GeForce 920M		1180 points
	Difference: 1060 (90%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 7750 should perform much faster than the GeForce 920M in general. (explain)

Radeon HD 7750		72000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 57600 (400%)

Texel Rate

The GeForce 920M is just a bit (more or less 19%) more effective at AF than the Radeon HD 7750. (explain)

GeForce 920M		30528 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 4928 (19%)

Pixel Rate

The Radeon HD 7750 should be quite a bit (more or less 68%) more effective at FSAA than the GeForce 920M, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 7750		12800 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 5168 (68%)

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 maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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