GeForce GTX Titan Black vs Radeon HD 3690/3830

Intro

Compare that to the Radeon HD 3690/3830, which has a clock speed of 668 MHz and a GDDR3 memory speed of 828 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is comprised of 320(64x5) SPUs, 16 Texture Address Units, 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 superior to 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%) faster with regards to 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

The GeForce GTX Titan Black should be a lot (more or less 299%) more effective at anti-aliasing than the Radeon HD 3690/3830, and should be able to handle higher screen resolutions more effectively. (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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.