GeForce GTX 880M vs Radeon R9 290

Intro

Compare those specifications to the Radeon R9 290, which features GPU core speed of 800 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 512-bit bus. It also is made up of 2560 Stream Processors, 160 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 290		9876 points
GeForce GTX 880M		6360 points
	Difference: 3516 (55%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
Radeon R9 290		300 Watts
	Difference: 170 Watts (131%)

Memory Bandwidth

The Radeon R9 290 should theoretically perform much faster than the GeForce GTX 880M in general. (explain)

Radeon R9 290		320000 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 192000 (150%)

Texel Rate

The Radeon R9 290 is just a bit (about 5%) faster with regards to anisotropic filtering than the GeForce GTX 880M. (explain)

Radeon R9 290		128000 Mtexels/sec
GeForce GTX 880M		122112 Mtexels/sec
	Difference: 5888 (5%)

Pixel Rate

The Radeon R9 290 will be much (more or less 68%) more effective at anti-aliasing than the GeForce GTX 880M, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 290		51200 Mpixels/sec
GeForce GTX 880M		30528 Mpixels/sec
	Difference: 20672 (68%)

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 maximum 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 bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.