GeForce GTX 850M vs Radeon HD 6750 1GB

Intro

Compare those specs to the Radeon HD 6750 1GB, which has a clock speed of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 720 SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
Radeon HD 6750 1GB		86 Watts
	Difference: 46 Watts (115%)

Memory Bandwidth

Theoretically, the Radeon HD 6750 1GB should perform a lot faster than the GeForce GTX 850M in general. (explain)

Radeon HD 6750 1GB		64000 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 32000 (100%)

Texel Rate

The GeForce GTX 850M is a lot (approximately 34%) better at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 850M		35040 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 8940 (34%)

Pixel Rate

The GeForce GTX 850M should be much (approximately 21%) more effective at anti-aliasing than the Radeon HD 6750 1GB, and able to handle higher resolutions more effectively. (explain)

GeForce GTX 850M		14016 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 2416 (21%)

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

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.