GeForce GTX 850M vs Radeon HD 5750 1GB

Intro

Compare those specs to the Radeon HD 5750 1GB, which comes with a GPU core clock speed of 700 MHz, and 1024 MB of GDDR5 RAM set to run at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 46 Watts (115%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB should perform much faster than the GeForce GTX 850M overall. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 41600 (130%)

Texel Rate

The GeForce GTX 850M should be quite a bit (about 39%) better at texture filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 850M		35040 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 9840 (39%)

Pixel Rate

The GeForce GTX 850M is much (about 25%) faster with regards to FSAA than the Radeon HD 5750 1GB, and also will be capable of handling higher resolutions better. (explain)

GeForce GTX 850M		14016 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 2816 (25%)

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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses 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 per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.