AMD enables multi-GPU setups for 7nm Vega

LemmingOverlrd

TS Addict

Michael Larabel, who runs the Linux-only Phoronix website, has noticed some interesting driver changes in AMD's recent Linux patch, namely xGMI support for AMDGPU Direct Rendering Manager, and explicitly for its upcoming Vega 20.

Although very little is known of xGMI's true capabilities, we can provide a bit of perspective: Nvidia's implementation of NVLink allows for up to 50 GBps per bridge link (with Volta maxing this out at 300GBps using 6 links), while your 'standard' high-bandwidth SLI bridge for Pascal will carry just 5GBps of data. Data rate discussions for xGMI, on the other hand, have revolved around the hundreds of GBps.

xGMI is an open standard Global Memory Interconnect, based on AMD's Infinity Fabric tech, and will allow Vega 20 to link up with other xGMI-enabled cards much in the same way NVLink and NVSwitch work for Nvidia. This had been long-rumored to become a feature of the workstation-class GPUs at AMD. However, in the datacenter and in deep learning workloads, where Vega 20 is aimed at, xGMI will allow workloads to scale well beyond what is done today over the PCIe bus, and will open up AMD to market DGX-like solutions.

While we are still a fair bit away from seeing a consumer-grade response to Nvidia, we can see that with PCI Express 4.0 support and xGMI, Vega 20, AMD's first 7nm GPU is shaping up to be more than just a shrink of the current Vega 10 architecture.

This next generation of Radeon Instinct might not be great for running Crysis 3, but every day we're getting to know a little bit more about the features behind the design, and how it will face off with Nvidia.

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multigpu

TS Rookie
Programmers are having tough time working on with multicpu and now multigpu.

When you can't beat them with single gpu, welcome to the new multigpu era.

Had anyone see the ridiculous pricing of the new gtx2000. At these day and age you still needed to pay an arm and a leg to play game at an acceptable 1080p resolution which had been around for aged.
 
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Stark

TS Addict
At these day and age you still needed to pay an arm and a leg to play game at an acceptable 1080p resolution which had been around for aged.
Not, unless your personal preference is extreme.
At these day and age you still needed to pay an arm and a leg to play game at an acceptable 1080p resolution which had been around for aged.
Not, unless your personal preference is extreme.
well even at High settings and with some eye candy and AA 1060 is needed to hit 60FPS which is still at 1070/1070Ti (depending on model) prices in my area.
 

cliffordcooley

TS Redneck
1060 is needed to hit 60FPS
And you don't think 60fps is extreme.

I don't require extreme, which is why the GTX 660 I have is fine. A card which can be had for $80. And will play any game as long as you don't require extreme settings. Which is why I worded my last comment the way I did.
 
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ShObiT

TS Maniac
1060 is needed to hit 60FPS
And you don't think 60fps is extreme.

I don't require extreme, which is why the GTX 660 I have is fine. A card which can be had for $80. And will play any game as long as you don't require extreme settings. Which is why I worded my last comment the way I did.
Totally true, in my country 1070 / 1070Ti runs about RD$25,000 and the Minimum wage is RD$ 11,826, the average is RD$16,000. So, anyone that pays almost double their wage is extreme in this area too...

I'm down here sitting in my R9 380 2gb and play pretty much every game, not at 144hz, not at 1440p, but I play it...
 

msroadkill612

TS Enthusiast
Thanks for the input. I am hoping that when gaming code gets a little more Zen friendly especially, that amdS apuS will make fun gamers for the developing world.