Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Performance, Value, Noise & Efficiency
The following graph shows the E11-1000's total performance rating, comparing it to other units we have tested. To be more specific, the tested unit is shown as 100 percent, and every other unit's performance is shown relative to it.
be quiet!'s E11-1000 cannot effectively meet its competition in this wattage and price category.
Performance Per Dollar
The following chart may be the most interesting to many of you because it depicts the unit's performance-per-dollar score. We looked up the current price of each PSU on popular online shops and used those prices and all relative performance numbers to calculate the index. If the specific unit wasn't available in the United States, we searched for it in popular European Union shops, converting the listed price to USD (without VAT). Note that all of the numbers in the following graph are normalized by the rated power of each PSU.
At an estimated $200 price point, the E11-1000 achieves a notably lower value score than Corsair's RM1000x and RM1000i (which are also protected by a longer warranty).
The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30°C and 32°C (86°F to 89.6°F).
When it comes to noise, the E11-1000 clearly loses to the RM1000i, RM1000x, and more expensive Seasonic SSR-1000PD. Even the efficient Kolink PSU features quieter operation.
The following graph shows the PSU's average efficiency throughout its operating range, with an ambient temperature close to 30°C.
The be quiet! E11-1000 falls to last place in this chart, though it doesn't land far from Corsair's offerings.
MORE: Best Power Supplies
MORE: All Power Supply Content
Current page: Performance, Value, Noise & EfficiencyPrev Page EMC Pre-Compliance Testing Next Page Final Analysis
Stay on the Cutting Edge
Join the experts who read Tom's Hardware for the inside track on enthusiast PC tech news — and have for over 25 years. We'll send breaking news and in-depth reviews of CPUs, GPUs, AI, maker hardware and more straight to your inbox.
Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.