One is a streaming all-in-one and the other is an amplifier. Judge them on how many boxes you want and what you already own, not on the spec sheet alone.
| Area | Better | Why |
|---|
| Power | evenly matched | Effectively the same output - 80W against 80W into 8 ohms is under 1dB, which is not an audible difference in loudness. |
| Grip on hard loads | evenly matched | Both behave much the same into 4 ohms - output increases strongly (130W and 130W). |
| Noise floor | evenly matched | Much the same signal-to-noise ratio (98dB vs 98dB). |
| Built-in DAC | B | Both decode on board, but only Roksan Attessa Streaming Amplifier handles MQA. |
| Streaming | B | Only Roksan Attessa Streaming Amplifier has AirPlay 2, Roon and BluOS. |
| Analogue inputs | evenly matched | The same number of line-level inputs (2). |
| Room to grow | evenly matched | The same expansion options on both. |
| Price | A | Roksan Attessa Integrated Amp costs less - $2,099 against $3,199 at list. |
| Watts per dollar | A | Roksan Attessa Integrated Amp is the cheaper watt - about $26 per watt against $40. A blunt measure, and it says nothing about how either sounds, but it is the honest one for raw output. |
A Roksan Attessa Integrated Amp B Roksan Attessa Streaming Amplifier
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both amplifiers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Roksan Attessa Streaming Amplifier is ahead, but on only 1 of the measured areas, and it costs about 52% more. That is a lot of money for a narrow margin - Roksan Attessa Integrated Amp is the sensible buy unless a specific feature above decides it for you. Think about the whole system: the roughly $1,100 saved by taking the cheaper one would buy better speakers or a subwoofer, which does more for the sound than the difference between two competent amplifiers.
What a spec sheet cannot show: how either sounds with your speakers, how the controls feel day to day, and what the app is like to live with - which is where most all-in-one amplifiers are actually won or lost. Power figures are the manufacturers' own and are not measured to a common standard, so treat small differences as noise. If you can hear both, that will tell you more than any row above.