GeForce 920M vs Radeon HD 3650 512MB

Intro

Compare those specifications to the Radeon HD 3650 512MB, which features a core clock frequency of 725 MHz and a GDDR3 memory speed of 800 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It is comprised of 120(24x5) SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 3650 512MB should theoretically be quite a bit better than the GeForce 920M in general. (explain)

Radeon HD 3650 512MB		25600 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 11200 (78%)

Texel Rate

The GeForce 920M should be quite a bit (approximately 426%) more effective at anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce 920M		30528 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 24728 (426%)

Pixel Rate

The GeForce 920M is a lot (more or less 163%) better at AA than the Radeon HD 3650 512MB, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 920M		7632 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 4732 (163%)

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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.