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by littlestymaar 1988 days ago
> The special thing about the V100 is that it's driver EULA allows data center usage.

Wait what? Is it the only thing?

That sounds hard to believe: if true, using the open driver (Nouveau) instead of Nvidia's proprietary one would be a massive money saver for datacenters operators (and even if Nouveau doesn't support the features you'd want already, supporting their development would be much cheaper for a company like Amazon than paying a premium on every GPU they buy)

3 comments

No, that's not the only thing.

Other characteristics of V100 that may be interesting to people buying GPUs for data centers:

- higher capacity GPU memory. 1080 has 8 GB, V100 has 16 or 32 GB.

- higher bandwidth GPU memory. V100 has HBM2 with a peak of 900 GB/s, 1080 has G5X with a peak of ~300 GB/s.

- ECC support.

- data center certification + warranty

(The geforce warranty covers normal consumer usage, like gaming, and does not cover datacenter use)

- availability of enterprise support contracts.

(If you are buying a ton of GPUs to put in a datacenter, you probably don't want to end up on the normal consumer support line when something goes wrong)

- fast fp64

There are probably others

A GTX1080 manages about ~9 TFLOPS(fp32) (and has terrible fp16 support), where V100 gets ~15 TFLOPS(fp16), ~30 TFLOPS(fp16), and ~120 TFLOPS(tensor cores).

Apart from one being a gaming product and the other being designed for computational tasks, they're a generation apart and have various small differences that may be quite relevant for individual tasks (such as V100 allowing twice the shared memory - 96 KiB - per thread block)

Thanks, that makes much more sense!
Nouveau does not support CUDA and is therefore not usable for GPU computing on Nvidia.
NVIDIA has EULA to prevent data centre use of their hardware. Also, NVIDIA does not allow bulk buying of RTX series.
They barely allow single buying for the 30 series :(

Took me quite a while to get my hands on a 3080.

What ended up working for you?
I bought from a (relatively) small German commerce site[1] rather than a bigger site like Amazon, OCUK, or Scan. I'm in EU though, probably doesn't help if you're US. I think I paid a €50 or so premium over the retail price but I didn't mind that too much.

I used this[2] site to keep an eye open for stock, as you can see it's pretty much empty now but I just checked every day and finally found one.

[1] https://www.reichelt.de/ [2] https://www.gputracker.eu/en/search/category/1/graphics-card...

Thanks for the insights...frustrating times to be searching for one.