GeForce 920M vs GeForce GTX 560 Ti 448

Intro

Compare those specifications to the GeForce GTX 560 Ti 448, which comes with a clock frequency of 732 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 320-bit bus, and uses a 40 nm design. It is made up of 448 SPUs, 56 TAUs, and 40 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 560 Ti 448		4200 points
GeForce 920M		1180 points
	Difference: 3020 (256%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should theoretically be quite a bit superior to the GeForce 920M overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 129600 (900%)

Texel Rate

The GeForce GTX 560 Ti 448 should be much (about 34%) faster with regards to anisotropic filtering than the GeForce 920M. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 10464 (34%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be quite a bit (approximately 284%) better at anti-aliasing than the GeForce 920M, and will be able to handle higher resolutions better. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 21648 (284%)

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 (measured in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of 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. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.