Which is to be expected for a card that in addition to the new ray-tracing stuff has been designed for high-end 4K gaming on PC. With the NVIDIA RTX 2080 Ti Founders Editions now out in the wild reviews have begun popping up across several trusted hardware sites. Which we've compiled for you here.

Tech Power Up

"NVIDIA has once more made significant improvements in power efficiency with their Turing architecture, which has roughly 10-15% better performance per Watt compared to Pascal. Compared to AMD, NVIDIA is now almost twice as power efficient, and twice as fast, at the same time."

Adding that the only bottleneck with the 2080 Ti is the power consumption, with card sitting at peak power for the duration of gaming. In terms of tests Assassin's Creed Odyssey at 4K saw a 37.2% increase in performance over the 1080 Ti, and Battlefield 1 a similar 35.7% increase in performance at 4K.

Link

Tweak Town

"The RTX 2080 Ti absolutely owns all resolutions and games, and is now the fastest graphics card you can buy. All the hype was worth it for a 30-50% increase in 4K performance over not just the GeForce GTX 1080 Ti, but the TITAN Xp which was worth $1199 (USD) until the RTX 2080 Ti Founders Edition arrived and took its price of $1199 (USD). It's a fairer comparison to not judge the RTX 2080 Ti against the GTX 1080 Ti, but more of 'how good is the card for $1199 that replaces the TITAN Xp'."

In terms of testing they found a 27.2% increase in 4K performance for Rise of the Tomb Raider and massive 71.8% increase in performance for Rainbow Six Siege in 4K - over the 1080 Ti.

Link

Guru 3D

"Face it, the RTX 2080 Ti is a beast. We're seeing some caps at lower resolution gaming, but for Ultra HD, the next step in performance has been made. Depending on title and workload you'll see 25% to maybe even 40% performance increases in this specific resolution. The RTX 2080 Ti really starts to flex muscle at 2560x1440, anything below is normalized due to driver and processor bottlenecks. We cannot think of a game that won't run really good combined with the best image quality settings."

In their testing Guru 3D found a 23% boost in performance for Grand Theft Auto V at 4K, pushing close to 100 fps. With Wolfenstein II pushing a 60% increase in 4K performance.

Link

It's also worth mentioning that currently there aren't any specific ray-tracing titles available for full testing of the cards advanced features - but the general consensus is that once you hit 1440p and above, the difference over the 10 series becomes huge. Where gains are generally found in the 25-40% range.