Note that ATI trademarks have been replaced by AMD trademarks starting with the Radeon HD 6000 series for desktop and AMD FirePro series for professional graphics.

Model – The marketing name for the GPU assigned by AMD/ ATI.

The headers in the table listed below describe the following:

9.3 FirePro Server series (S000x/Sxx 000).

That's only 5 W more than the Radeon HD 7770. All the while, Radeon HD 7790 is an 85 W part. In theory, geometry-heavy games should consequently favor the Radeon HD 7790 over the 7770 or 7750. The Cape Verde GPU can only do 1 primitive/clock. Like the Pitcairn-based Radeon HD 7800-series cards (and the Cayman-based cards before those), Bonaire's front-end employs dual geometry and tessellation engines, facilitating two primitives per clock. Nvidia's GeForce GTX 650 Ti also looks like a close match, delivering similar performance specifications, though the 7790's TDP is 25 W lower. Realistically, the Radeon HD 7790 replaces AMD's old Radeon HD 6870, a card that offered significantly more memory bandwidth, but less compute potential as a result of its now-two-generation-old VLIW5 architecture. How do the card's specs look compared to the competition? However, it's also possible to go the other way, yielding more performance at higher power. In one workload we ran ( Crysis 3), we saw the Radeon HD 7790 use a few watts less than a Cape Verde-based card. Ultimately, the mechanism underlying AMD's updated PowerTune technology (which also surfaces in the Richland-based APUs) is less important than its actual impact on power and performance. Transitions between states are apparently as fast as 10 ms, or about an order of magnitude quicker than changes to Nvidia's GPU Boost technology, and based on load, current limits, or the GPU's thermal ceiling. AMD claims this also facilitates higher peak frequencies. This added granularity should help the GPU operate at the right voltage and clock rate for each workload. The company does make some tweaks to its power delivery, though, employing eight distinct states instead of four. From an architectural standpoint, Bonaire features the same GCN architecture as AMD's current line-up.

Says ati radeon hd 4250 but i have 7790