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Intel Xeon E5645 @ 2.40GHz

Benchmarks for the Intel Xeon E5645 can be found below. Release dates, price and performance comparisons are also listed when available. This is made using thousands of PerformanceTest benchmark results and is updated daily.

  • The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark.
  • The 2nd graph shows the value for money, in terms of the CPUMark per dollar.
  • The pricing history data shows the price for a single Processor. For multiple Processors, multiply the price shown by the number of CPUs.

Intel Xeon E5645 @ 2.40GHz

Description:

Class: Server

Socket: LGA1366

Clockspeed: 2.4 GHz

Turbo Speed: 2.7 GHz

Cores: 6 Threads: 12

Typical TDP: 80 W

Cache per CPU Package:
L1 Instruction Cache: 6 x 32 KB
L1 Data Cache: 6 x 32 KB
L2 Cache: 6 x 256 KB
L3 Cache: 12 MB

Other names: Intel(R) Xeon(R) CPU E5645 @ 2.40GHz, Intel(R) Xeon(R) CPU E5645 @ 2.40GHz, Intel Xeon CPU E5645 @ 2.40GHz

CPU First Seen on Charts: Q2 2011

CPUmark/$Price: 35.92

Overall Rank:
2398th fastest in multithreading out of 5790 CPUs
3475th fastest in single threading out of 5790 CPUs
929th fastest in out of 1229 Server CPUs

Last Price Change: $137.00 USD (2023-06-02)

Average CPU Mark rating
Multithread Rating
4921
Single Thread Rating
1131

Samples: 112*
*Margin for error: Low



PerformanceTest V9
CPU Mark: 6,344
Thread: 1,115

CPU Test Suite Average Results for Intel Xeon E5645 @ 2.40GHz

Integer Math20,006 MOps/Sec
Floating Point Math8,637 MOps/Sec
Find Prime Numbers26 Million Primes/Sec
Random String Sorting10,754 Thousand Strings/Sec
Data Encryption1,788 MBytes/Sec
Data Compression83,327 KBytes/Sec
Physics417 Frames/Sec
Extended Instructions2,404 Million Matrices/Sec
Single Thread1,131 MOps/Sec
From submitted results to PerformanceTest V10 as of 17th of February 2026.

CPU Mark Distribution for Intel Xeon E5645 @ 2.40GHz

Submitted Baseline Distribution Graph as of 10th of February 2026
From submitted results since PerformanceTest V10 as of 10th of February 2026.
For distribution graph only: Results are trimmed to exclude outliers by disregarding the bottom 1% and top 1% of submissions.

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Pricing History


CPU Mark Relative to Top 10 Common Server CPUs
As of 17th of February 2026 - Higher results represent better performance
Processor Average CPU Mark
AMD Ryzen Threadripper PRO 3955WX
 39,928
ARM Neoverse-N1 128 Core 3000 MHz
 39,780
AMD Ryzen 7 PRO 7745
 34,826
ARM Neoverse-N1 80 Core 3000 MHz
 34,788
AMD Ryzen 5 PRO 7645
 27,565
Intel Xeon E5-2680 v4 @ 2.40GHz
 17,233
Intel Xeon E5-2697 v2 @ 2.70GHz
 14,252
Hygon C86-3G (OPN:3350)
 11,656
Intel Xeon E5-1650 v4 @ 3.60GHz
 11,328
Intel Xeon E5-1650 v3 @ 3.50GHz
 10,378
Intel Xeon E5645 @ 2.40GHz
 4,921
CPU Value (CPU Mark / $Price )
As of 17th of February 2026 - Higher results represent better value
Processor CPU Mark / $Price
Intel Xeon E5-2680 v4 @ 2.40GHz
 81.31
Intel Xeon E5-2697 v2 @ 2.70GHz
 73.68
AMD Ryzen 5 PRO 7645
 61.71
AMD Ryzen 7 PRO 7745
 57.60
AMD Ryzen Threadripper PRO 3955WX
 39.93
Intel Xeon E5645 @ 2.40GHz
 35.92
Intel Xeon E5-1650 v4 @ 3.60GHz
 26.35
Intel Xeon E5-1650 v3 @ 3.50GHz
 7.28
ARM Neoverse-N1 80 Core 3000 MHz
 NA
ARM Neoverse-N1 128 Core 3000 MHz
 NA
Hygon C86-3G (OPN:3350)
 NA
Single Thread Rating
As of 17th of February 2026 - Higher results represent better performance
Processor Average Thread Rating
AMD Ryzen 7 PRO 7745
 4,117
AMD Ryzen 5 PRO 7645
 3,954
AMD Ryzen Threadripper PRO 3955WX
 2,680
Intel Xeon E5-1650 v4 @ 3.60GHz
 2,369
Intel Xeon E5-1650 v3 @ 3.50GHz
 2,122
Intel Xeon E5-2680 v4 @ 2.40GHz
 1,931
Intel Xeon E5-2697 v2 @ 2.70GHz
 1,780
Hygon C86-3G (OPN:3350)
 1,715
ARM Neoverse-N1 128 Core 3000 MHz
 1,329
ARM Neoverse-N1 80 Core 3000 MHz
 1,328
Intel Xeon E5645 @ 2.40GHz
 1,131
Last 5 Baselines for Intel Xeon E5645 @ 2.40GHz
Most recent listed first
Baseline CPU Mark
BL3238122 - Jan 24 2026
4017
BL3077983 - Nov 23 2025
4975
BL2975398 - Oct 14 2025
5043
BL2943582 - Sep 30 2025 [Excluded]
2750
BL2937480 - Sep 27 2025 [Excluded]
3425
Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.
Popular comparisons for Intel Xeon E5645 @ 2.40GHz
As of 17th of February 2026 - Higher results represent better performance
Processor Average CPU Mark
Intel Xeon E5645 @ 2.40GHz
 4,921
Intel Xeon E5649 @ 2.53GHz vs Intel Xeon E5645
 5,646 (+14.7%)
Intel Xeon E3-1275 @ 3.40GHz vs Intel Xeon E5645
 5,491 (+11.6%)
Intel Xeon W3690 @ 3.47GHz vs Intel Xeon E5645
 7,325 (+48.8%)
AMD Opteron 6174 vs Intel Xeon E5645
 3,697 (-24.9%)
Intel Xeon E5-2650L @ 1.80GHz vs Intel Xeon E5645
 6,055 (+23.0%)
Intel Xeon X5677 @ 3.47GHz vs Intel Xeon E5645
 5,064 (+2.9%)
Intel Xeon E5630 @ 2.53GHz vs Intel Xeon E5645
 3,796 (-22.9%)
Intel Xeon L5638 @ 2.00GHz vs Intel Xeon E5645
 3,707 (-24.7%)
Intel Xeon E5-1650 @ 3.20GHz vs Intel Xeon E5645
 8,046 (+63.5%)
Intel Xeon W3680 @ 3.33GHz vs Intel Xeon E5645
 7,042 (+43.1%)
Intel Xeon X5680 @ 3.33GHz vs Intel Xeon E5645
 6,927 (+40.7%)
Intel Xeon E5-2640 @ 2.50GHz vs Intel Xeon E5645
 6,285 (+27.7%)