GeForce GTX 780 Ti vs Radeon R9 280

Intro

Compare all of that to the Radeon R9 280, which makes use of a 28 nm design. AMD has set the core frequency at 933 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this particular model. It features 1792 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 280		7961 points
	Difference: 2939 (37%)

Ethereum Mining Hash Rate

Radeon R9 280		22 Mh/s
GeForce GTX 780 Ti		19 Mh/s
	Difference: 3 (16%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the GeForce GTX 780 Ti should in theory be much better than the Radeon R9 280 in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon R9 280		240000 MB/sec
	Difference: 96000 (40%)

Texel Rate

The GeForce GTX 780 Ti will be much (more or less 101%) more effective at anisotropic filtering than the Radeon R9 280. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon R9 280		104496 Mtexels/sec
	Difference: 105504 (101%)

Pixel Rate

The GeForce GTX 780 Ti is quite a bit (approximately 41%) more effective at full screen anti-aliasing than the Radeon R9 280, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon R9 280		29856 Mpixels/sec
	Difference: 12144 (41%)

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 max amount of information (counted in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.