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NVIDIA ‘Ampere’ 8nm Graphics Cards

It has nothing to do with the CPU's speed but with PCIe itself. It doesn't matter if you have the fastest super CPU in the world if the PCIe lanes are bottlenecking the entire system. Now keyword here is IF as we don't know yet if PCIe 4.0 will make any difference for ampere and RDNA 2 or if PCIe 3.0 16x is enough.

Only bottlenecking if you have to use them - if there is enough VRAM to hold everything (like 24 GB!) then it's all good: x16 link PCIe 3.0 = 32GB/s
 
How do you measure pci-e utilisation? Thanks

It is a bit complicated - GPU-z can show the controller utilisation if the right sensors are exposed on your setup and with debug tools you can look at the data in use and get a rough measurement. I don't know of any way to directly measure it.
 
Yeah - the bulk of the bus utilisation is data uploading at load time, etc. in most games PCI-e bandwidth utilisation on the GPU is sitting at ~12% on my system (PCI-e 3.0) not even close to saturating it during game rendering.

EDIT: Playing Battlefield 4 it peaks at 6%, average 4%.
Battlefield 4 is a 7 year old game that lists a GTX660 as the recommeneded card on steam. I don't think it is a good/relevant example due to its age.

With the next gen consoles planning on utilising data streaming from the SSDs i do wonder when games are built to take advantage of that, will PCIE bandwidth begin to matter more.
It is a shame that nobody has done a proper investigation as to why HZD is behaving the way it is, it could give us insight into what to expect.
 
I find it funny people assume intel is holding back the Navi GPUs when Radeon themselves use a 9900k in there rest rig to post performance numbers every driver update. People have no idea :p

RS-339, Testing by AMD Performance Labs as of August 13th, 2020 using a test system configured with an Intel Core i9-9900K CPU (3.6GHz), 16GB DDR4-3200MHz memory, a Radeon™ RX 5700 XT graphics card and Windows 10 x64 with Radeon Software Adrenalin 2020 Edition 20.8.2, and a similarly configured system with Software Adrenalin 2020 Edition 20.8.1, to test driver over driver FPS performance using the game A Total War Saga: Troy at 1920x1080 resolution. Performance may vary
 
Battlefield 4 is a 7 year old game that lists a GTX660 as the recommeneded card on steam. I don't think it is a good/relevant example due to its age.

With the next gen consoles planning on utilising data streaming from the SSDs i do wonder when games are built to take advantage of that, will PCIE bandwidth begin to matter more.
It is a shame that nobody has done a proper investigation as to why HZD is behaving the way it is, it could give us insight into what to expect.

I don't have anything much installed right now to test - but I had a quick look at it with some more recent games not that long ago and it was around 12% (usually lower*) on my setup - granted that is a 4820K @ 4.6GHz and a GTX1070 and not a 10K series Intel and a 2080ti :o

* In a lot of games it barely manages to register a percentage much of the time the odd spike aside - games tend to avoid shuttling data over the PCI-e link while rendering if they can avoid it - most of it is command traffic.
 
did you even watch the video? It's the motherboards pcie slow bandwidth that's the issue, Intel as usually is stuck in the past with old technology and life comes at you fast.

And if you did watch the video you'd know that the 10900k is already bottlenecking the 5700xt in some games because it doesn't support pcie4
All the tests prove is that the Intel 10900K system is slower at 4K for unknown reasons.
They should have tested PCIE3 vs PCIE4 on the same X570 3950x 2080ti system but they didn't.
 
With the next gen consoles planning on utilising data streaming from the SSDs i do wonder when games are built to take advantage of that, will PCIE bandwidth begin to matter more.
They sound like there out dated even before they been released :p

They should have M.2 NVMe drives ;)
 
And by the way Hardware Unboxed is not alone. Other reviewers are also moving to AMD review rigs. German reviewer PCGamesHardware has made the switch to a 3900XT for new graphics card reviews.
 
LOL at the people that say if there priced to high i just buy a console...
PC gaming can't mean that much at all to them..

I have spend thousands on building my PC gaming rig setup, Monitor, Mice, Speakers, PC Chair etc and have thousands of pounds worth of PC games and there no way i could think ok i just buy a console if these new GPU's are highly priced
I've repeatedly spent thousands on hardware and peripherals too, I am quite prepared to sit this generation out and buy a console instead. I don't have to stop using my PC and I've got a decent enough PC for the games I'm playing now. My PC won't magically disappear if I buy a console and I can have the additional fun of being sociable at home with mates playing football or racing games. I'm certainly not going to overpay for hardware if I don't believe it offers value and I've owned Titan XP SLI, 295x2 Quadfire, 6990 Quadfire, 980TI SLI so it's not like I won't spend if I can see the performance I want from my money. If I can't see the performance e.g.2080ti+50% for £699 or thereabouts I'll wait and enjoy something else until Nvidia see sense. I was initially prepared to pay more than £699 but that's how much the 2080ti successor 'should' cost in my book.
 
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PS5 has PCIe 4.0 SSD that can push compressed data at up to 9GB/sec, supposedly. Faster than NVMe and markedly faster than all PC drives, for now. (Compressed shenanigans though)

5.5GB/s is uncompressed max speed. 9GB/s is average compressed and 20GB/s is the max compressed speed

As per Sony own admission though, the Theoretical max of 20GB/s with compression is very difficult to achieve hence wuothe 9GB/s average
 
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It's not like Intel are caught blind here. Gamers Nexus reported that Nvidia has notified Intel a long time ago that it should have PCIe4 capable CPUs ready for Amperes launch. Intel have failed to heed that warning, what comes next is on Intel

Can I get a link to that Gamers Nexus article?
 
PS5 has PCIe 4.0 SSD that can push compressed data at up to 9GB/sec, supposedly. Faster than NVMe and markedly faster than all PC drives, for now. (Compressed shenanigans though)

For now? You mean Ryzen 4000 right? I follow that the least of all pc part sectors i must take a look at this game nexus article too if someone will link.

But for sure i need a big overhaul the only good thing in my case is the AX860i and the 2080ti the SSD badly needs replaced soon its 256gb fs. :p
 
Its a video


If you watch the video he does point out that intel (fps) are still better for gaming, the rest is just speculation.

Are you also aware that Horizon Zero Dawn has just had a couple of patches to fix performance problems.

Software that does not work correctly should never be used to benchmark anything.
 
tiredcompassionateallensbigearedbat

Yeah - the bulk of the bus utilisation is data uploading at load time, etc. in most games PCI-e bandwidth utilisation on the GPU is sitting at ~12% on my system (PCI-e 3.0) not even close to saturating it during game rendering.

EDIT: Playing Battlefield 4 it peaks at 6%, average 4%.

I'm not sure the data read is correct unfortunately. If you look here you can see low pci-e utilization and yet the game has clear performance penalty at x8 vs x16. That would mean it's a very narrow bottleneck. There's just something screwy with this game but without a proper gpu profiler I doubt the data from these tools (gpuz etc) as well.

 
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