GeForce GTX 580 vs Radeon R9 295X2

Intro

Compare that to the Radeon R9 295X2, which comes with GPU core speed of 1018 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 512-bit bus. It also features 2816 SPUs, 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 580		4956 points
	Difference: 16249 (328%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580		244 Watts
Radeon R9 295X2		500 Watts
	Difference: 256 Watts (105%)

Memory Bandwidth

Performance-wise, the Radeon R9 295X2 should theoretically be much better than the GeForce GTX 580 in general. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GTX 580		192384 MB/sec
	Difference: 447616 (233%)

Texel Rate

The Radeon R9 295X2 is much (about 625%) faster with regards to anisotropic filtering than the GeForce GTX 580. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 308928 (625%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 295X2 is the winner, by a large margin. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GTX 580		37056 Mpixels/sec
	Difference: 93248 (252%)

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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 number of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.