GeForce GTX Titan Black vs Radeon HD 3850 512MB

Intro

Compare all of that to the Radeon HD 3850 512MB, which features core clock speeds of 668 MHz on the GPU, and 828 MHz on the 512 MB of GDDR3 memory. It features 320(64x5) SPUs along with 16 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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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 is 534% faster than the Radeon HD 3850 512MB overall, due to its higher bandwidth. (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 should be quite a bit (approximately 1896%) more effective at texture filtering 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 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 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: Bandwidth is the largest amount of data (measured in MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 number of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.