GeForce GTX Titan Black vs Radeon HD 5550

Intro

The GeForce GTX Titan Black makes use of a 28 nm design. nVidia has clocked the core speed at 889 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this specific card. It features 2880 SPUs as well as 240 Texture Address Units and 48 Rasterization Operator Units.

Compare those specs to the Radeon HD 5550, which features core clock speeds of 550 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 memory. It features 320(64x5) SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling 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 the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. 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 bandwidth is, the lower the ability to reach the max fill rate.