GeForce GTX 950M vs Radeon HD 3650

Intro

Compare all that to the Radeon HD 3650, which has core clock speeds of 725 MHz on the GPU, and 800 MHz on the 1024 MB of GDDR4 memory. It features 120(24x5) SPUs as well as 8 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon HD 3650		78 Watts
	Difference: 23 Watts (42%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950M is 25% faster than the Radeon HD 3650 overall, because of its higher data rate. (explain)

GeForce GTX 950M		32000 MB/sec
Radeon HD 3650		25600 MB/sec
	Difference: 6400 (25%)

Texel Rate

The GeForce GTX 950M should be quite a bit (approximately 530%) faster with regards to AF than the Radeon HD 3650. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 3650		5800 Mtexels/sec
	Difference: 30760 (530%)

Pixel Rate

The GeForce GTX 950M should be much (more or less 404%) faster with regards to full screen anti-aliasing than the Radeon HD 3650, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 3650		2900 Mpixels/sec
	Difference: 11724 (404%)

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 information (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.