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Profile [AF>Libristes] hermes
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Message 54997 - Posted: 27 May 2020 | 17:51:48 UTC
Last modified: 27 May 2020 | 18:01:28 UTC

Hello the world,

I would like to buy one or two GPU.
Already have: 1 RTX 2080ti and 1 GTX 1060 (for the time being on the same MB)

I want to "power on" the second PC and have 1 or 2 nivida card to add. (so 3 or 4 on 2 MotherBoard / PC)

I don't want to put more than 500€ / card
I have to be careful about the heat, I see with 2 GPU on the same MB, even if the 1060 is cold like a glass of Ricard (65°), the 2080 don't like compagny. Or well, too much (hot like a teenager in face with a nude girl) (86°)

Well, any idea ?

PS: the goal it is not to perform like a boss, but working on others projects in //. Well, sometimes I will put them all on GPUgrid to be a boss for a day ;-)
The GPU will be for Boinc project only, not for game or other "strange things"
Nvidia only (Linux man)

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Message 54999 - Posted: 27 May 2020 | 21:24:25 UTC - in response to Message 54997.

I have 2 GTX 1060s on a MB with a i7-7700K in a mid tower recycled from a Pentium III computer shop build.
upper GPU-0 runs ~70C
lower GPU-1 runs ~65C
...while crunching the current batch.

Be advised though, I run with the case side removed and a desk fan on it.

1060-3GBs are getting cheaper, I just bought a new ASUS (Dual OC) for $200.

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Message 55000 - Posted: 27 May 2020 | 22:16:16 UTC

I would always recommend the newest generation of video cards.

I run a run GTX1650, GTX1650 SUPER, GTX1660 TI and a RTX2070, beside some older cards.

For budget consideration I would recommend the GTX1650 SUPER, it is much faster as the GTX1650 (only 10 USD more expensive), GTX 1660TI is faster but I hesitate to recommend it for the 120 USD extra. If budget is no consideration or “real-time ray tracing” is your preference, RTX are faster still. And the price difference from a GTX1660TI to a RTX2060 is slim, so it might be an option.

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Message 55002 - Posted: 28 May 2020 | 0:28:18 UTC - in response to Message 55000.

Good call, Klepel. Look what userbenchmark.com says:
https://gpu.userbenchmark.com/Compare/Nvidia-GTX-1660S-Super-vs-Nvidia-GTX-1060-3GB/

He could put 2 GTX1660 Supers on one MB for under 500 euros and that machine would be roughly 15% faster than the machine with the 2080ti and GTX1070 in GPU potential compute capability.
https://gpu.userbenchmark.com/Compare/Nvidia-GTX-1660S-Super-vs-Nvidia-RTX-2080-Ti/4056vs4027
https://gpu.userbenchmark.com/Compare/Nvidia-GTX-1060-3GB-vs-Nvidia-RTX-2080-Ti/3646vs4027

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Message 55003 - Posted: 28 May 2020 | 1:40:15 UTC - in response to Message 54999.

1060-3GBs are getting cheaper, I just bought a new ASUS (Dual OC) for $200.


It looks like the 1650Super is faster and less money than the 10603GB.
https://gpu.userbenchmark.com/Compare/Nvidia-GTX-1060-3GB-vs-Nvidia-GTX-1650S-Super/3646vs4058

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Message 55012 - Posted: 29 May 2020 | 21:05:28 UTC

Underclocking and/or undervolting would help you to lower the temperatures... Too bad it isn't available in Linux.
Although there is the power-limiting option in 'nvidia-smi', which might help too.

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Message 55013 - Posted: 29 May 2020 | 21:45:19 UTC - in response to Message 55012.

Underclocking and/or undervolting would help you to lower the temperatures... Too bad it isn't available in Linux.
Although there is the power-limiting option in 'nvidia-smi', which might help too.


You can underclock in linux if you want. But you really don’t want to do that. You want to run the same clocks but less volts. Power limiting + overclock will do that.

Undervolting in Windows is largely the same process. Recent nvidia cards even in Windows you don’t have real control of the voltage. The “voltage” slider doesn’t control actual voltage anymore, just max allowable, the card still pretty much decides what voltage you run since you can’t drag the slider lower than 0. But the power limit + OC indirectly pulls the voltage down since that’s the only thing the card can adjust to keep power draw below the limit while still trying to give you more clocks.

____________

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Message 55014 - Posted: 30 May 2020 | 0:00:47 UTC

Ola, ServicEnginIC!

We need your experience in high ambient temp multiple GPU application here.

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Message 55020 - Posted: 30 May 2020 | 10:42:24 UTC

Hi guys,

Thanks for yours replies.
The 1660 Super seems a really good option !

Have a nice day !

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Message 55059 - Posted: 18 Jun 2020 | 20:54:01 UTC - in response to Message 55014.

We need your experience in high ambient temp multiple GPU application here.

I was planning to retire my least efficient GPU (a GTX 950) and replacing it for a more efficient one.
Looking to my particular efficiency table, from Low power GPUs performance comparative thread, I was pretty sure to decide for a GTX 1650, but I had tested four different cards based on this GPU so far.
Finally, I acquired a second GTX 1650 like this.
Several reasons for this decision:
- This is the best performance model, due to its aggressive factory overclocking.
- To allow this overclocking, TDP is increased from stock 75W to 85W.
You may ask: What's the benefit for this?
Answer: A 6 pin external power connector is present on this card, missing at the other models. This gives more stability and flexibility when installing in multi GPU motherboards (with two or more PCIE x16 slots).
Even so, there is a 15W power save, comparing to previous GTX 950 TDP of 100W, with about a 70% performance increase.
- Also, for a better cooling, this card mounts a heat pipe based heatsink, being more efficient at heat dissipation than passive ones.
On this triple GPU system, it maintains consistently 67 ºC at full power, at a room temperature of 26 ºC and stock fan curve.

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