Geforce GTX 780 vs Radeon R9 295X2

Intro

Compare all that to the Radeon R9 295X2, which makes use of a 28 nm design. AMD has set the core speed at 1018 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this specific 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 780		10082 points
	Difference: 11123 (110%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 780		250 Watts
Radeon R9 295X2		500 Watts
	Difference: 250 Watts (100%)

Memory Bandwidth

Theoretically, the Radeon R9 295X2 should perform much faster than the Geforce GTX 780 overall. (explain)

Radeon R9 295X2		640000 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 351616 (122%)

Texel Rate

The Radeon R9 295X2 will be much (approximately 116%) better at AF than the Geforce GTX 780. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 192640 (116%)

Pixel Rate

The Radeon R9 295X2 should be a lot (more or less 215%) better at FSAA than the Geforce GTX 780, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 88880 (215%)

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 maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.