Geforce GTX 680 vs Radeon R9 295X2

Intro

Compare all of that to the Radeon R9 295X2, which features core clock speeds of 1018 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. 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 680		7650 points
	Difference: 13555 (177%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
Radeon R9 295X2		500 Watts
	Difference: 305 Watts (156%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should in theory be a lot better than the Geforce GTX 680 in general. (explain)

Radeon R9 295X2		640000 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 447744 (233%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (more or less 178%) more effective at texture filtering than the Geforce GTX 680. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Geforce GTX 680		128768 Mtexels/sec
	Difference: 229568 (178%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 295X2 is a better choice, by a large margin. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 98112 (305%)

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 (counted in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, the result 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 AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.