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Gamer Installs Crysis 3 On GeForce RTX 3090 VRAM - And it actually Works
As we all know the RTX 3090 has 24 GB of video memory. For most games today, that's an abundance of vram even on the toughest settings. Twitterer 'Strife212' has found a creative way to make use of that huge frame buffer.
SStrife212, decided to install and play Crysis 3 on the RTX 3090 VRAM. For this, she used the Ram Drive GPU, the VRAM drive software, and created a 15GB NTFS partition on the GPU. She then installed Crysis 3 on it. This left 9 GB for the game to use as video memory, more than enough to not form a bottleneck. Finally, the user showed the game running successfully on Twitter. At 4K / Very High settings, Crysis 3 ran at 75fps on the NVIDIA GeForce RTX 3090 . In addition, and with the game installed, the total use of VRAM was 20GB. In case you're wondering, loading speeds didn't improve, Strife 212 claimed, being similar to a fast NVMe drive.
We'l like to see that tested with Call of Duty: Modern Warfare though, 250 GB ... :)
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The technological superiority of the Crysis 3 Nanosuit demands lethal weapons like the Predator Bow & Typhoon Minigun. ...
Silva
Senior Member
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Joined: 2013-06-04
Senior Member
Posts: 1409
Joined: 2013-06-04
#5839213 Posted on: 10/06/2020 01:37 PM
Thankfully PCIe4.0 has plenty of bandwidth!
I see no advantage on doing that, because it will use the same pcie lanes for the storage and for the video memory.
Thankfully PCIe4.0 has plenty of bandwidth!
A M D BugBear
Senior Member
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Joined: 2005-09-27
Senior Member
Posts: 3511
Joined: 2005-09-27
#5839219 Posted on: 10/06/2020 01:52 PM
Very Very nice, Not surprised either, just matter of time for someone to try something like this.
Excellent, thanks for sharing.
Very Very nice, Not surprised either, just matter of time for someone to try something like this.
Excellent, thanks for sharing.
schmidtbag
Senior Member
Posts: 5645
Joined: 2012-11-10
Senior Member
Posts: 5645
Joined: 2012-11-10
#5839221 Posted on: 10/06/2020 01:54 PM
Because of how information is supposed to be loaded into VRAM, yes, the PCIe lanes would be a major bottleneck. However, it would still be faster than loading data from a the average NVMe SSD, because you'd get all x16 lanes to transfer data instead of the x4 that a SSD is limited to. Though technically, you'd have x8 lanes to deal with since for asset data, you're basically passing information from the VRAM to your system memory, which is then put back into VRAM.
If the software (or perhaps even drivers) were written so game asset data wouldn't have to be passed back and forth like that, then there wouldn't really be any PCIe bottleneck at all; the rest of the CPU-side code would load in a second.
Interesting what she did, but just only interesting. I see no advantage on doing that, because it will use the same pcie lanes for the storage and for the video memory. I would like to see how it runs with a standard setup, I bet it will be faster or equal. Anyway... it is a kind of test I also like to do 
Because of how information is supposed to be loaded into VRAM, yes, the PCIe lanes would be a major bottleneck. However, it would still be faster than loading data from a the average NVMe SSD, because you'd get all x16 lanes to transfer data instead of the x4 that a SSD is limited to. Though technically, you'd have x8 lanes to deal with since for asset data, you're basically passing information from the VRAM to your system memory, which is then put back into VRAM.
If the software (or perhaps even drivers) were written so game asset data wouldn't have to be passed back and forth like that, then there wouldn't really be any PCIe bottleneck at all; the rest of the CPU-side code would load in a second.
southamptonfc
Senior Member
Posts: 1876
Joined: 2006-04-10
Senior Member
Posts: 1876
Joined: 2006-04-10
#5839223 Posted on: 10/06/2020 01:59 PM
lol brings a whole new meaning to but can it run Crysis?
lol brings a whole new meaning to but can it run Crysis?
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Joined: 2008-10-14
Interesting what she did, but just only interesting. I see no advantage on doing that, because it will use the same pcie lanes for the storage and for the video memory. I would like to see how it runs with a standard setup, I bet it will be faster or equal. Anyway... it is a kind of test I also like to do