GeForce GTX 965M vs Radeon HD 3650 512MB

Intro

Compare all of that to the Radeon HD 3650 512MB, which features a GPU core clock speed of 725 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 128-bit bus. It also features 120(24x5) Stream Processors, 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 512MB		78 Watts
	Difference: 18 Watts (30%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 965M should theoretically be a lot better than the Radeon HD 3650 512MB overall. (explain)

GeForce GTX 965M		64000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 38400 (150%)

Texel Rate

The GeForce GTX 965M will be quite a bit (about 942%) faster with regards to texture filtering than the Radeon HD 3650 512MB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 54616 (942%)

Pixel Rate

The GeForce GTX 965M is a lot (more or less 942%) more effective at FSAA than the Radeon HD 3650 512MB, and will be capable of handling higher resolutions better. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 3650 512MB		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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number 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 filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.