GeForce GTX 780 Ti vs Radeon R9 280X

Intro

Compare those specs to the Radeon R9 280X, which has a clock speed of 850 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 384-bit memory bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

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 Ti		10900 points
Radeon R9 280X		8886 points
	Difference: 2014 (23%)

Ethereum Mining Hash Rate

Radeon R9 280X		21 Mh/s
GeForce GTX 780 Ti		19 Mh/s
	Difference: 2 (11%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

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

GeForce GTX 780 Ti		336000 MB/sec
Radeon R9 280X		288000 MB/sec
	Difference: 48000 (17%)

Texel Rate

The GeForce GTX 780 Ti is a lot (more or less 93%) better at texture filtering than the Radeon R9 280X. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 101200 (93%)

Pixel Rate

The GeForce GTX 780 Ti is a lot (approximately 54%) better at full screen anti-aliasing than the Radeon R9 280X, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 14800 (54%)

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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling 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 video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.