GeForce GTX 850M vs Radeon R9 295X2

Intro

Compare those specs to the Radeon R9 295X2, which has core speeds of 1018 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2816 SPUs as well as 176 TAUs 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

As far as performance goes, the Radeon R9 295X2 should in theory be much better 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 should be quite a bit (about 923%) faster with regards to AF than the GeForce GTX 850M. (explain)

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

Pixel Rate

The Radeon R9 295X2 should be quite a bit (more or less 830%) better at anti-aliasing than the GeForce GTX 850M, and also should be capable of handling higher screen resolutions more effectively. (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 information (counted in megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR 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 number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at 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 the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.