GeForce GTX 850M vs Radeon HD 7950 3GB

Intro

Compare those specs to the Radeon HD 7950 3GB, which comes with a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 384-bit memory bus, and makes use of a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

Zcash Mining Hash Rate

Radeon HD 7950 3GB		229 Sol/s
GeForce GTX 850M		49 Sol/s
	Difference: 180 (367%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 160 Watts (400%)

Memory Bandwidth

Theoretically, the Radeon HD 7950 3GB should perform much faster than the GeForce GTX 850M in general. (explain)

Radeon HD 7950 3GB		240000 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 208000 (650%)

Texel Rate

The Radeon HD 7950 3GB should be quite a bit (approximately 156%) faster with regards to texture filtering than the GeForce GTX 850M. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 54560 (156%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 7950 3GB is a better choice, by a large margin. (explain)

Radeon HD 7950 3GB		25600 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 11584 (83%)

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 (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once 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 number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.