GeForce GTX 880M vs Radeon HD 3650 256MB

Intro

Compare that to the Radeon HD 3650 256MB, which comes with GPU core speed of 725 MHz, and 256 MB of DDR2 RAM running at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) Stream Processors, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB		78 Watts
GeForce GTX 880M		130 Watts
	Difference: 52 Watts (67%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 880M should perform quite a bit faster than the Radeon HD 3650 256MB overall. (explain)

GeForce GTX 880M		128000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 102400 (400%)

Texel Rate

The GeForce GTX 880M is a lot (about 2005%) faster with regards to texture filtering than the Radeon HD 3650 256MB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 116312 (2005%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 880M is a better choice, and very much so. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 27628 (953%)

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 MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated 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 maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs 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 rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.