GeForce GTX 965M vs Radeon HD 3650 256MB

Intro

Compare all of that to the Radeon HD 3650 256MB, which makes use of a 55 nm design. AMD has clocked the core frequency at 725 MHz. The DDR2 memory runs at a speed of 800 MHz on this particular card. It features 120(24x5) SPUs along with 8 Texture Address Units and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 3650 256MB		78 Watts
	Difference: 18 Watts (30%)

Memory Bandwidth

Theoretically, the GeForce GTX 965M should perform a lot faster than the Radeon HD 3650 256MB in general. (explain)

GeForce GTX 965M		64000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 38400 (150%)

Texel Rate

The GeForce GTX 965M is quite a bit (approximately 942%) better at AF than the Radeon HD 3650 256MB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 54616 (942%)

Pixel Rate

The GeForce GTX 965M should be quite a bit (approximately 942%) better at anti-aliasing than the Radeon HD 3650 256MB, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 27308 (942%)

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 (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once 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 number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.