GeForce GTX 850M vs Radeon R9 295X2

Intro

Compare those specs to the Radeon R9 295X2, which has a clock speed of 1018 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 512-bit bus, and uses a 28 nm design. It is comprised of 2816 SPUs, 176 Texture Address Units, and 64 ROPs.

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.

3DMark Fire Strike Graphics Score

Radeon R9 295X2		21205 points
GeForce GTX 850M		3340 points
	Difference: 17865 (535%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
Radeon R9 295X2		500 Watts
	Difference: 460 Watts (1150%)

Memory Bandwidth

The Radeon R9 295X2 should in theory perform a lot faster than the GeForce GTX 850M in general. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 608000 (1900%)

Texel Rate

The Radeon R9 295X2 is a lot (approximately 923%) more effective at anisotropic filtering than the GeForce GTX 850M. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 323296 (923%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 295X2 is superior to the GeForce GTX 850M, and very much so. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 116288 (830%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.