New build, Dual Xeon or single Threadripper?

[Jpjapers]

At work we currently have some pretty old (6 year+) dual xeon machines with 128gb ECC Ram (only at 1700mhz) GTX 1080 and some raid SSDs.
We want to upgrade but dont have the budget to rebuild entirely or buy new dual xeon machines.
Im pretty impressed with the stats from the Threadripper benchmarks especially for the price.
So thinking that we could salvage the SSDs, GPU and possibly RAM to put into a new machine i feel like the threadripper build would be a great option.
Anyone got any thoughts on why we should reconsider Xeons? I Dont know enough about the xeon range to know if theres anything comparable really but i feel like the hardware would be a hell of alot cheaper for the threadripper build.

Thanks
Jack

[Juraj]

possibly RAM to put into a new machine

You won't be able to salvage memory. DDR3 & DDR4 alone are not compatible (Few select boards support ECC, but DDR4 ECC only, not your generation).

The price of memory is almost the biggest tipping point in deciding on the build right now.

[Jpjapers]

possibly RAM to put into a new machine

You won't be able to salvage memory. DDR3 & DDR4 alone are not compatible (Few select boards support ECC, but DDR4 ECC only, not your generation).

The price of memory is almost the biggest tipping point in deciding on the build right now.

The memory was only added in last year and its DDR3 according to my HP system management software so i guess that needs buying too. We could probably spend between 1500 and 2000 on each machine.

[Juraj]

128GB (8x16GB modules) of DDR4 starts at 1600 euros for mid-level speed (2400MHZ/CL15). Threadripper does sadly benefit for memory speed to certain extent because of its infinity bridge architecture.

I haven't seen how much the difference makes in Corona.

[Jpjapers]

128GB (8x16GB modules) of DDR4 starts at 1600 euros for mid-level speed (2400MHZ/CL15). Threadripper does sadly benefit for memory speed to certain extent because of its infinity bridge architecture.

I haven't seen how much the difference makes in Corona.

I dont think id need 128 to be honest. And we are talking GBP not dollars.
im certain 64gb would suffice.

[danio1011]

128GB (8x16GB modules) of DDR4 starts at 1600 euros for mid-level speed (2400MHZ/CL15). Threadripper does sadly benefit for memory speed to certain extent because of its infinity bridge architecture.

I haven't seen how much the difference makes in Corona.

On the topic of RAM and the 1950x - I just built a threadripper system.  When in single channel mode (1 DIMM) @ 2133mhz it came in at 3:45 sec at stock CPU speeds on the Corona Benchmark.  Almost dead last in threadripper systems listed :) 

In dual channel mode (2 DIMM) @ 3200mhz it came in at 1:14 at stock CPU speeds.  I got some bad ram so I'm waiting to see what Quad Channel lands me at, will know tomorrow, assuming that RAM is good...then time to overclock!

Daniel

EDIT:  Ram was a G.Skill 4x16gb set at CAS16.  New Ram coming will be TridentZ CAS14, 4x16.

[subpixelsk]

Hi Danio

do you see any difference between dual and quad channel performance?

[danio1011]

Yes but it just took off a fee seconds...I think I hit 1:03 or something.  So not as huge but still there.

[agentdark45]

Personally holding out for Threadripper v2 realeasing this year.

Hopefully they've resolved the RAM issues! No way in hell I'm shelling out for the high core count consumer Intel CPU's that use toothpaste for IHS compound.