GeForce GTX Titan Black vs Radeon HD 3690/3830

Intro

Compare all of that to the Radeon HD 3690/3830, which features GPU clock speed of 668 MHz, and 256 MB of GDDR3 memory set to run at 828 MHz through a 128-bit bus. It also is made up of 320(64x5) SPUs, 16 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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

As far as performance goes, the GeForce GTX Titan Black should in theory be much better than the Radeon HD 3690/3830 overall. (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 (more or less 1896%) better at AF 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

If running with lots of anti-aliasing is important to you, then the GeForce GTX Titan Black is a better choice, and very much so. (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 largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.