GeForce GTX 950M vs Radeon HD 3650

Intro

Compare all that to the Radeon HD 3650, which features a core clock speed of 725 MHz and a GDDR4 memory frequency of 800 MHz. It also uses a 128-bit memory bus, and uses a 55 nm design. It features 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

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

In theory, the GeForce GTX 950M should be 25% quicker 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 is much (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 quite a bit (approximately 404%) faster with regards to anti-aliasing than the Radeon HD 3650, and capable of handling higher resolutions more effectively. (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 largest amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.