CPU section CPU tools and references

Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz
FOLDING@HOME PPD PERFORMANCE

CPU profile

Performance snapshot

Current output, per-thread efficiency, ranks, sample depth, and data freshness.

CPU family Intel / 20 logical processors
New / volatile
Most recent sample Jul 16, 2025 Most recent update seen for this CPU profile.
PPD-PLP average
10,493
Per logical processor
Estimated total PPD
209,860
All logical processors enabled
Logical processors
20
Available to the CPU fold slot
Data samples
437
Recorded CPU work units
Overall rank
#178
795 CPUs tracked
Brand rank
#86
564 Intel CPUs
Planning guidance and number variabilityOpen guide
Reading the averages

Why your PPD may differ

PPD is a guide, not a fixed result. Daily output changes with the work-unit mix, including project, points, atom count, and deadline, as well as system conditions such as OS, drivers, clocks, thermals, and power limits.

CPU allocation planning

CPU allocation at a glance

Use the estimate range, full-chip result, and processor ceiling to orient your setup, then compare allocations in the table.

View allocation table
How to read this

The logical-processor table below provides the detailed split guidance.

  • Leave enough CPU headroom for any GPUs folding on the same machine.
  • Compare split strategies in the allocation table instead of treating the full-chip estimate as a universal recommendation.
Current estimate range
10,493 to 209,860 PPD
Best full-chip estimate
209,860 PPD
Allocation ceiling
20 logical processors available

CPU PPD ESTIMATES BY LOGICAL PROCESSORS USED BETA

The following data for the Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz is estimated using the average PPD for each logical CPU processor, multiplied by different counts of those logical processors.

PPD data for CPUs is presented this way because folders can optimize their setup by folding on any number of the available logical processors on a project work unit.

The suggested number of logical processors for best results depends on how many GPUs are also folding, so enough CPU bandwidth remains available for GPU folding.

The maximum number of logical processors available on a CPU should only be used on a system dedicated solely to CPU folding with very little other overhead.

CPU Folding
Usage Percentage
Logical Procs
Enabled
AVG PPD
Estimated
WUs Day
Average
WU Time
Average
CPU & GPU Folding
LC MAX Suggested
100.0%
20209,8606.23 hrs 53 mins
95.0%
19199,3675.94 hrs 5 mins1 GPUs
90.0%
18188,8745.64 hrs 18 mins2 GPUs
85.0%
17178,3815.34 hrs 34 mins3 GPUs
80.0%
16167,8885.04 hrs 51 mins4 GPUs
75.0%
15157,3954.65 hrs 10 mins5 GPUs
70.0%
14146,9024.35 hrs 32 mins6 GPUs
65.0%
13136,4094.05 hrs 58 mins7 GPUs
60.0%
12125,9163.76 hrs 28 mins8 GPUs
55.0%
11115,4233.47 hrs 3 mins
50.0%
10104,9303.17 hrs 45 mins
45.0%
994,4372.88 hrs 37 mins
40.0%
883,9442.59 hrs 41 mins
35.0%
773,4512.211 hrs 4 mins
30.0%
662,9581.912 hrs 55 mins
25.0%
552,4651.515 hrs 30 mins
20.0%
441,9721.219 hrs 23 mins
15.0%
331,4790.925 hrs 50 mins
10.0%
220,9860.638 hrs 45 mins
5.0%
110,4930.377 hrs 31 mins

ACTIVE CPU RESEARCH PROJECTS BETA

The following data is the average PPD values for Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz project work units based on multiple samples collected via the use of our Folding@Home dark mode web client.

PPD-PLP
Rank
Project
ID
Cause
Research
PPD-PLP
AVG PPD per 1 LP
ALL LP-PPD
Estimated @ 20 LP
PPD RANK %
Of Best PPD
112477cancer13,827276,540
100.0%
212486alzheimers12,680253,600
91.7%
318240Force-Field-Protein-Dynamics12,478249,560
90.2%
412485alzheimers11,721234,420
84.8%
512479cancer10,600212,000
76.7%
619227Halogenase-Prediction9,523190,460
68.9%
718820Protein-Vitrification-CryoEM9,379187,580
67.8%
819228Halogenase-Regioselectivity-Prediction9,364187,280
67.7%
912476cancer8,867177,340
64.1%
1018806cancer8,844176,880
64.0%
1119229Halogenase-Directed-Drug-Design8,808176,160
63.7%
1218803cancer4,67393,460
33.8%
1312468Cyclic-Tetrapeptide-Synthesis3,85277,040
27.9%
Track this hardware live

Profile your Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz in our V8 Web Client

Launch the LAR.SYSTEMS V8 Web Client to monitor live work-unit activity, compare your machine with community benchmarks, and contribute real samples that keep public rankings and hardware insights current for the Folding@Home community.

First and most recent work-unit sample contributors
Sample Folder Team Platform Seen
Most recent WU sample Longbowgun_ALL_1Q7R4N1xTMSQt4ZffqXJpfLCAzKXTVP2RU Curecoin Windows CPU 1 year ago
First seen Longbowgun_ALL_1Q7R4N1xTMSQt4ZffqXJpfLCAzKXTVP2RU Curecoin Windows CPU 1 year ago