GeForce 920M vs Radeon HD 3650 512MB

Intro

Compare all of that to the Radeon HD 3650 512MB, which comes with core speeds of 725 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 120(24x5) SPUs as well as 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 3650 512MB should in theory be much 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 much (more or less 426%) more effective at AF 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 should be quite a bit (approximately 163%) faster with regards to anti-aliasing than the Radeon HD 3650 512MB, and will be capable of handling higher resolutions more effectively. (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 largest amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 amount of texture units of the card by the core 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 can possibly record 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 clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 maximum fill rate.