Geforce GTX 780 vs Radeon R9 280X

Intro

Compare all of that to the Radeon R9 280X, which makes use of a 28 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this specific card. It features 2048 SPUs along with 128 Texture Address Units and 32 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

Geforce GTX 780		10082 points
Radeon R9 280X		8886 points
	Difference: 1196 (13%)

Ethereum Mining Hash Rate

Radeon R9 280X		21 Mh/s
Geforce GTX 780		20 Mh/s
	Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically, the Geforce GTX 780 should be a small bit faster than the Radeon R9 280X overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon R9 280X		288000 MB/sec
	Difference: 384 (0%)

Texel Rate

The Geforce GTX 780 should be a lot (about 52%) faster with regards to anisotropic filtering than the Radeon R9 280X. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 56896 (52%)

Pixel Rate

The Geforce GTX 780 will be much (more or less 52%) better at anti-aliasing than the Radeon R9 280X, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 14224 (52%)

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 largest amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. 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 ability to get to the max fill rate.