Yes, The GPU supports CorossfireX, and no bridge is required, but going for such a multi-GPU setup is not worth the hassle these days. You would be much better off buying a
SINGLE powerful GPU instead.
Only older AMD cards needed a crossfire bridge though.
Multi-GPU setups are becoming obsolete and dead ! Not many GAMES even scale well properly on an SLI or CFX setup, let alone benefit from a multi-gpu setup.
On a totally different note related to NVIDIA, you must be aware that NVidia has introduced a new interface called
NVLINK with the consumer Turing GPUs, instead of the old SLI. Obviously, it's the same multi-GPU bridge which can be used for gaming, but it has an interface with many times the bandwidth of an SLI connection.
Because NVLink can be used for direct memory access between cards, and not through the PCIe slots as this was creating a huge bottleneck with SLI. So I think NVlink is the future, if we go by Nvidia's theory,
But not many Games might be able to reap the full benefits of NVlinK, because the same thing happened with SLI. SLI bridges mostly used to have a bandwidth of 1GB/s (normal bridge), and 2GB/s (for the HB bridge), with a rough estimate. NVLink on Turing cards can do 25GB/s one way, and or 50GB/s in total. But according to Nvidia, total bandwidth is 50GB/s one way, and 100GB/s total.
But all of this will only help, if GAMES are going to take advantage of this new multi-GPU feature, provided the
Game developers also implement this, be it CrossFire or SLI.
I think the main advantage of Nvlink is that it might help with peer-to-peer interface, VRAM stacking, because essentially the GPUs are much closer together now, also bringing the latency of a GPU-to-GPU transfer way down.
So unlike SLI, where the
latency had to go through
PCIe as well as memory, Nvlink behaves in a different manner.
We can think of it an app that looks at one GPU, and then looks at another GPU and does something else same time. So it seems NVlink will be the future when it comes to multi-GPU setup, but sadly ONLY on the high-end market segment, as other Turing cards will lack NVLINK support.
But again, like I said before, all of this will actually depend on how well the Game's ENGINE benefits from a future multi-GPU setup. Apart from this, even the price of an NVLINK bridge is kind of high, so this can be a very expensive multi-GPU setup, and not many gamers might be able to afford these.
I still prefer having a SINGLE powerful GPU on my rig, because a lot of games don't scale well on SLI/CFX. Can't comment about the performance of NVlink though.
By the way, when it comes AMD, even LISA SU has commented on CrossfireX support, and according to her it is no longer a focus for the company. So yeah, even AMD is dropping support for multi-GPU setups.
Even Radeon RX 5700 and RX 5700 XT have no support for multiple GPUs by CrossFire.
https://www.guru3d.com/news-story/c...a-significant-focus-says-amd-ceo-lisa-su.html
Sorry to go Off topic though.....
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