Geforce GTX 680 vs Radeon R9 295X2

Intro

Compare those specifications to the Radeon R9 295X2, which uses a 28 nm design. AMD has clocked the core speed at 1018 MHz. The GDDR5 memory is set to run at a frequency of 1250 MHz on this card. It features 2816 SPUs along with 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

Performance-wise, the Radeon R9 295X2 should theoretically be quite a bit 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 should be quite a bit (approximately 178%) better 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

The Radeon R9 295X2 should be a lot (more or less 305%) faster with regards to full screen anti-aliasing than the Geforce GTX 680, and also should be capable of handling higher resolutions while still performing well. (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 largest amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.