GeForce GTX Titan Black vs Radeon HD 3690/3830

Intro

Compare that to the Radeon HD 3690/3830, which uses a 55 nm design. AMD has set the core speed at 668 MHz. The GDDR3 RAM runs at a frequency of 828 MHz on this particular model. It features 320(64x5) SPUs along with 16 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3690/3830		75 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

In theory, the GeForce GTX Titan Black should be much faster than the Radeon HD 3690/3830 in general. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 3690/3830		26496 MB/sec
	Difference: 309504 (1168%)

Texel Rate

The GeForce GTX Titan Black is much (about 1896%) faster with regards to anisotropic filtering than the Radeon HD 3690/3830. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 3690/3830		10688 Mtexels/sec
	Difference: 202672 (1896%)

Pixel Rate

The GeForce GTX Titan Black will be quite a bit (about 299%) faster with regards to anti-aliasing than the Radeon HD 3690/3830, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 3690/3830		10688 Mpixels/sec
	Difference: 31984 (299%)

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 megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.