GeForce GTX 950M vs Radeon HD 3650 512MB

Intro

Compare all that to the Radeon HD 3650 512MB, which comes with a clock speed of 725 MHz and a GDDR3 memory speed of 800 MHz. It also uses a 128-bit bus, and uses a 55 nm design. It features 120(24x5) SPUs, 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 512MB		78 Watts
	Difference: 23 Watts (42%)

Memory Bandwidth

The GeForce GTX 950M, in theory, should be a lot faster than the Radeon HD 3650 512MB overall. (explain)

GeForce GTX 950M		32000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 6400 (25%)

Texel Rate

The GeForce GTX 950M will be quite a bit (approximately 530%) more effective at AF than the Radeon HD 3650 512MB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 30760 (530%)

Pixel Rate

The GeForce GTX 950M should be much (more or less 404%) faster with regards to anti-aliasing than the Radeon HD 3650 512MB, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 3650 512MB		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 data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.