GeForce GTX 880M 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 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 880M		6360 points
	Difference: 14845 (233%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Radeon R9 295X2		500 Watts
	Difference: 370 Watts (285%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should theoretically be a lot better than the GeForce GTX 880M overall. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 512000 (400%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (approximately 193%) better at texture filtering than the GeForce GTX 880M. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GTX 880M		122112 Mtexels/sec
	Difference: 236224 (193%)

Pixel Rate

The Radeon R9 295X2 will be quite a bit (more or less 327%) more effective at full screen anti-aliasing than the GeForce GTX 880M, and capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 99776 (327%)

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 one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.