GeForce GTX 860M vs Radeon HD 3650

Intro

Compare that to the Radeon HD 3650, which has GPU clock speed of 725 MHz, and 1024 MB of GDDR4 RAM set to run at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) Stream Processors, 8 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
Radeon HD 3650		78 Watts
	Difference: 33 Watts (73%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 860M should theoretically be quite a bit better than the Radeon HD 3650 overall. (explain)

GeForce GTX 860M		64000 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 38400 (150%)

Texel Rate

The GeForce GTX 860M is much (approximately 1219%) faster with regards to texture filtering than the Radeon HD 3650. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 70712 (1219%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 860M is the winner, by far. (explain)

GeForce GTX 860M		12752 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 9852 (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 max amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.