GeForce 920M vs GeForce GTX 480

Intro

Compare those specs to the GeForce GTX 480, which has core clock speeds of 700 MHz on the GPU, and 924 MHz on the 1536 MB of GDDR5 memory. It features 480 SPUs along with 60 TAUs and 48 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

GeForce GTX 480		3650 points
GeForce 920M		1180 points
	Difference: 2470 (209%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 480 should theoretically be much better than the GeForce 920M in general. (explain)

GeForce GTX 480		177408 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 163008 (1132%)

Texel Rate

The GeForce GTX 480 will be a lot (approximately 38%) better at AF than the GeForce 920M. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 11472 (38%)

Pixel Rate

The GeForce GTX 480 will be quite a bit (more or less 340%) more effective at FSAA than the GeForce 920M, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 25968 (340%)

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 data (counted in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.