GeForce GTX 780 Ti vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which uses a 28 nm design. AMD has clocked the core speed at 918 MHz. The GDDR5 RAM works at a speed of 1375 MHz on this specific model. It features 1792 SPUs along with 112 TAUs 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 Ti		10900 points
Radeon R9 285		8500 points
	Difference: 2400 (28%)

Ethereum Mining Hash Rate

GeForce GTX 780 Ti		19 Mh/s
Radeon R9 285		18 Mh/s
	Difference: 1 (6%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

The GeForce GTX 780 Ti, in theory, should be quite a bit faster than the Radeon R9 285 overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 160000 (91%)

Texel Rate

The GeForce GTX 780 Ti is much (approximately 104%) more effective at AF than the Radeon R9 285. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 107184 (104%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 780 Ti is a better choice, and very much so. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 12624 (43%)

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 maximum amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock 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 - the lower the bandwidth is, the lower the potential to reach the max fill rate.