Nvidia Ampere Discussion [2020-05-14]

Some say it's because they know AMD has something good coming, others it's because of the process

 

Nvidia is also bundling watch dogs legion and a year of geforce now, much generous of them

When does amd start leaking big Navi results?

 

They may have already started.

 

FinFET significantly improved leakage compared to planar, although like a prior significant materials change--the shift to hi-K gate dielectrics at 45nm or 28nm, the benefits don't remain sufficient forever.
The first node to implement a major structural change has a big improvement, but then the challenges it was created for continue to get worse with each subsequent node and/or other previously neglected factors become dominant.

FinFet added significantly better control over the channel at 22/16nm nodes depending on the manufacturer, but the research into nanowire or GAAFET was started with the expectation that the challenges after several nodes would eventually out-scale what iterations of FinFET could compensate for.

 

NVIDIA GeForce RTX 3080 Can Hit Overclocks Beyond 20 Gbps On Its GDDR6X Memory, Power Limits & First Overclocking Results Detailed

https://wccftech.com/nvidia-geforce-rtx-3080-memory-overclocking-performance-detailed/

 

One of the websites I shop at now has a new category for pc cases "3 Slot Ampere Compatible"

 

Cases should be more worried about the length than the thickness.
3slot design is impacted more by the mobo's pci-e spacing.
Edit- Assuming ATX and midtowers. Obviously, more compact cases this is helpful.

 

A link
https://www.overclockers.co.uk/cases-and-modding/pc-cases/3-slot-ampere-compatible

 

70C is nice. Now they just need to deliver the promised 30dB of fan noise and they may have a winner.

 

Will you buy the 10GB or wait for the 20GB?

What if 20GB is a third-party only cooler?

I noticed in the Digital Foundry video about optimised settings for FS2020 that it uses 10.5GB ish at top settings. Silly game devs thinking 11GB or more would be available on PC for the enthusiast level gamers, huh?

 

That's 24GB gddr6x for enthusiasts, the RTX 3090. A 3080 is a high end product.

 

3090 FE for me.

 

Some games allocate all they can. Doesn't mean it's "needed" in every situation. But yeah I agree.

(Full disclamer, I felt burn by the 4gb of my old Fury X at the time, so I went to a Vega FE (16gb) after that )

 

It's a custom model they're running, not FE.

 

Oh ok.

 

Specs wise, the 3070 is a dead ringer for the OG 2080. Should make for a nice architectural comparison between Turing and Ampere.

Both are 6GPCs, 46SMs, 256-bit with similar core and memory clocks. Interestingly the TDP is about the same too.

 

I was under the impression that gddr6x used the same power as gddr6?

Wiki says 15% less per bit transfered, so shouldn't it be comparable to 2080ti 616GB/s?

If 180w GPU only is to be believed, then the memory and rest of the board is responsible for 140w?

And if 317w is after memory and GPU oc, why did NVIDIA list a 320w tdp. Surely it would have come under 300w stock.

Anyway, seems peculiar. 2 - 3% for an oc doesn't seem that impressive either. If the GPU core is already hitting 1935mhz I'd guess it's pretty close to max if Turing is anything to go by

 

They are overclocking with stock power limit because the card they are testing has 320W max power limit.

https://videocardz.com/newz/overclocking-nvidia-geforce-rtx-3080-memory-to-20-gbps-is-easy

 

3070 has 50% more ROPs.
3080 and 2080 Ti are closer - the same number of SMs, GPCs, etc, 96 vs 88 ROPs.