Quote:Objectively, this doesn’t impact very many people. All available data has always suggested that only a small fraction of Nvidia users buy SLI, that only a fraction of that fraction can afford two of the same high-end GPUs, and that only a fraction of those buyers opted to purchase a G-Sync monitor on top of that.

But while it may not impact very many people, it very much impacts the people who have poured the most money into Nvidia’s products and who represent its biggest fans. If you’ve got a pair of GTX 1080 Tis and a G-Sync monitor, you likely spent nearly $2,000 on your GPU and display alone. Even a brace of GTX 1070s could have run $700 for the pair and another $422 for the cheapest Dell G-Sync display on Newegg. The minimum buy-in cost for this technology is over a grand, assuming folks bought at 2018 prices. That’s enough money to buy a new gaming PC, and your top-spending customers are dropping it on GPUs. Not taking care of your halo customers can be a very expensive mistake, and while there aren’t a ton of people talking about this topic on reddit, the conversation threads go back for months. A lot of folks have been both patient and resourceful in trying to collaborate, share information, and find workarounds.
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I don’t blame Nvidia for being unable to fix problems that aren’t of its making, or those mandated by the pesky laws of physics. But the company owes its customers an explanation for this behavior and an honest update about their ability to solve it, including the fact that it may never be solved, if that’s the case. The current situation reflects poorly on Nvidia.

For the record, it’s entirely possible AMD has this issue as well. If it does, the same applies. These are complex capabilities that end-users pay heavy premiums, in some cases, to access. All customers deserve honesty, period, without exception, but the customers poised to spend thousands of dollars on your products deserve to know whether they’re buying marketing claptrap or actual performance.

Quote:There is no clear explanation to these issues, but fun fact: they are not new. On Tom's Hardware forum there are users with the very same problem in 2016, and there were also users speaking about that kind of issues in our own TPU forum a year and a half ago. It seems the problem isn't present on Turing, but no one with that kind of configuration (G-Sync + SLI) should, for now, feel completely safe.

At TechPowerUp we reviewed the performance of the new RTX 2080 Ti and RTX 2080 connected with NVLink recently, but we didn't test that configuration with G-Sync, so we cannot confirm if the problem is present with Turing, NVLink and G-Sync. Maybe new drivers could solve these performance penalties, but we'll have to wait: NVIDIA hasn't made any official comments on these issues as of yet.