GeForce GTX Titan Black vs Radeon HD 3850 512MB

Intro

Compare all of that to the Radeon HD 3850 512MB, which has a core clock speed of 668 MHz and a GDDR3 memory speed of 828 MHz. It also uses a 256-bit memory bus, and makes use of a 55 nm design. It features 320(64x5) SPUs, 16 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3850 512MB		75 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

In theory, the GeForce GTX Titan Black will be 534% quicker than the Radeon HD 3850 512MB in general, because of its higher data rate. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 3850 512MB		52992 MB/sec
	Difference: 283008 (534%)

Texel Rate

The GeForce GTX Titan Black will be much (approximately 1896%) more effective at AF than the Radeon HD 3850 512MB. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 3850 512MB		10688 Mtexels/sec
	Difference: 202672 (1896%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX Titan Black is superior to the Radeon HD 3850 512MB, and very much so. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 3850 512MB		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 information (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, 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 number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.