difficult hardware decision

A forum for discussing FAH-related hardware choices and info on actual products (not speculation).

Moderator: Site Moderators

Forum rules
Please read the forum rules before posting.
Post Reply
PrimordialSoup
Posts: 4
Joined: Sat Apr 18, 2015 1:56 pm

difficult hardware decision

Post by PrimordialSoup »

Hi,

I am having trouble deciding between 2 cpu for a folding rig. I am looking to populate a 2s board with either the e5-2660 v3 or e5-2670 v3. Where I live the price difference is negligible, electricity is cheap so it all comes down to workload performance on the cpu(more cores & lower clock or less cores & higher clock). The 2660 is a 10c/20t @ 2.6ghz and the 2670 is 12c/24t @ 2.3ghz. I want to run the a5 core and leave 4 available threads for other computing tasks.

Thanks in advance.
jrweiss
Posts: 704
Joined: Tue Dec 04, 2007 6:56 am
Hardware configuration: Ryzen 7 5700G, 22.40.46 VGA driver; 32GB G-Skill Trident DDR4-3200; Samsung 860EVO 1TB Boot SSD; VelociRaptor 1TB; MSI GTX 1050ti, 551.23 studio driver; BeQuiet FM 550 PSU; Lian Li PC-9F; Win11Pro-64, F@H 8.3.5.

[Suspended] Ryzen 7 3700X, MSI X570MPG, 32GB G-Skill Trident Z DDR4-3600; Corsair MP600 M.2 PCIe Gen4 Boot, Samsung 840EVO-250 SSDs; VelociRaptor 1TB, Raptor 150; MSI GTX 1050ti, 526.98 driver; Kingwin Stryker 500 PSU; Lian Li PC-K7B. Win10Pro-64, F@H 8.3.5.
Location: @Home
Contact:

Re: difficult hardware decision

Post by jrweiss »

I think that at this level of discussion, the F@H work done can be compared relatively simply by cores x clock or threads x clock. I think that in this range the scaling will be approximately linear within our ability to predict.

So after saving 2 cores or 4 threads for other work, you have 8x2.6=20.8 for the 2660 or 10x2.3=23.0 for the 2670. Therefore I think the 2670 will be more productive for FAH, but the 2660 will be more productive for your remaining work.
Ryzen 7 5700G, 22.40.46 VGA driver; MSI GTX 1050ti, 551.23 studio driver
Ryzen 7 3700X; MSI GTX 1050ti, 551.23 studio driver [Suspended]
7im
Posts: 10179
Joined: Thu Nov 29, 2007 4:30 pm
Hardware configuration: Intel i7-4770K @ 4.5 GHz, 16 GB DDR3-2133 Corsair Vengence (black/red), EVGA GTX 760 @ 1200 MHz, on an Asus Maximus VI Hero MB (black/red), in a blacked out Antec P280 Tower, with a Xigmatek Night Hawk (black) HSF, Seasonic 760w Platinum (black case, sleeves, wires), 4 SilenX 120mm Case fans with silicon fan gaskets and silicon mounts (all black), a 512GB Samsung SSD (black), and a 2TB Black Western Digital HD (silver/black).
Location: Arizona
Contact:

Re: difficult hardware decision

Post by 7im »

Agreed. FPU count x clock speed, when comparing similar hardware.

And unless the PC is used for something really CPU intensive, I rarely find the need to reserve any threads, and use them all on FAH. YMMV.
How to provide enough information to get helpful support
Tell me and I forget. Teach me and I remember. Involve me and I learn.
Leonardo
Posts: 260
Joined: Tue Dec 04, 2007 5:09 am
Hardware configuration: GPU slots on home-built, purpose-built PCs.
Location: Eagle River, Alaska

Re: difficult hardware decision

Post by Leonardo »

Why don't you build a GPU rig? Currently, GPUs are typically much more productive.
Image
DarthBaggins
Posts: 13
Joined: Mon Jun 08, 2015 1:49 pm
Hardware configuration: i7 5930k @ 4.5 - 1.220
GSkill RipJaw 4 16GB DDR4 2400
Asus Rampage V Extreme
Asus Strix GTX970 (1545)
Samsung 840 Pro 128GB (x2)
Corsair Foce GS 128GB
Seagate Barracuda 2TB 7200 RPM
Corsair RM850
CaseLabs M8 w/ Pedestal
Location: PeachTree Corners, GA

Re: difficult hardware decision

Post by DarthBaggins »

So far the 980's/970's/960's are great point producers from my experience especially with BigAdv out of the picture
Image
5930k @ 4.5 - GSkill Ripjaw 4 16GB DDR4 2400 - Strix GTX970 @ 1555
2 x Samsung 840 Pro 128GB - 1 x Corsair Force GS 128GB - 2 x Seagate Barracuda 2TB
Asus Rampage V Extreme - Corsair RM850 - CaseLabs M8 w/ Pedestal (custom loop)
Post Reply