GeForce GTX 850M vs Radeon HD 5750 512MB

Intro

Compare that to the Radeon HD 5750 512MB, which has a clock frequency of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 46 Watts (115%)

Memory Bandwidth

Performance-wise, the Radeon HD 5750 512MB should theoretically be quite a bit better than the GeForce GTX 850M in general. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 41600 (130%)

Texel Rate

The GeForce GTX 850M is much (more or less 39%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 850M		35040 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 9840 (39%)

Pixel Rate

The GeForce GTX 850M is a lot (approximately 25%) more effective at AA than the Radeon HD 5750 512MB, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 850M		14016 Mpixels/sec
Radeon HD 5750 512MB		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: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, 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 most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units 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 output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.