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[Dual CPU] Intel Xeon E5645 @ 2.40GHz

Benchmarks for the [Dual CPU] 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.

[Dual CPU] 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: 33.54

Overall Rank:
549th fastest in multithreading out of all multi-CPU CPUs

Last Price Change: $274.00 USD Total for 2 CPUs (2023-06-02)

Average CPU Mark rating
Multithread Rating
9191
Single Thread Rating
1176

Samples: 123*
*Margin for error: Low



PerformanceTest V9
CPU Mark: 6,344
Thread: 1,115
#The number of cores/threads and TDP is per CPU. To determine the total, multiply by the total CPU count.

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

Integer Math41,798 MOps/Sec
Floating Point Math17,806 MOps/Sec
Find Prime Numbers42 Million Primes/Sec
Random String Sorting22,066 Thousand Strings/Sec
Data Encryption3,563 MBytes/Sec
Data Compression173,761 KBytes/Sec
Physics641 Frames/Sec
Extended Instructions4,817 Million Matrices/Sec
Single Thread1,176 MOps/Sec
From submitted results to PerformanceTest V10 as of 13th of November 2025.

CPU Mark Distribution for [Dual CPU] Intel Xeon E5645 @ 2.40GHz

Submitted Baseline Distribution Graph as of 13th of November 2025
From submitted results since PerformanceTest V10 as of 13th of November 2025.
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 13th of November 2025 - Higher results represent better performance
Processor Average CPU Mark
AMD Ryzen Threadripper PRO 3955WX
 40,004
ARM Neoverse-N1 128 Core 3000 MHz
 39,780
ARM Neoverse-N1 80 Core 3000 MHz
 35,253
AMD Ryzen 7 PRO 7745
 34,827
ARM Neoverse-N1 64 Core 0 MHz
 28,040
AMD Ryzen 5 PRO 7645
 27,565
Intel Xeon E5-2680 v4 @ 2.40GHz
 17,315
Intel Xeon E5-2697 v2 @ 2.70GHz
 14,276
Intel Xeon E5-1650 v3 @ 3.50GHz
 10,387
Intel Xeon E5-1650 v2 @ 3.50GHz
 9,294
[Dual CPU] Intel Xeon E5645 @ 2.40GHz
 9,191
CPU Value (CPU Mark / $Price )
As of 13th of November 2025 - Higher results represent better value
Processor CPU Mark / $Price
Intel Xeon E5-2680 v4 @ 2.40GHz
 81.69
Intel Xeon E5-2697 v2 @ 2.70GHz
 73.80
AMD Ryzen 5 PRO 7645
 61.71
AMD Ryzen 7 PRO 7745
 57.60
Intel Xeon E5-1650 v2 @ 3.50GHz
 40.42
AMD Ryzen Threadripper PRO 3955WX
 36.37
[Dual CPU] Intel Xeon E5645 @ 2.40GHz
 33.54
Intel Xeon E5-1650 v3 @ 3.50GHz
 7.29
ARM Neoverse-N1 80 Core 3000 MHz
 NA
ARM Neoverse-N1 128 Core 3000 MHz
 NA
ARM Neoverse-N1 64 Core 0 MHz
 NA
Single Thread Rating
As of 13th of November 2025 - 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
 2,681
Intel Xeon E5-1650 v3 @ 3.50GHz
 2,125
Intel Xeon E5-1650 v2 @ 3.50GHz
 2,039
Intel Xeon E5-2680 v4 @ 2.40GHz
 1,934
Intel Xeon E5-2697 v2 @ 2.70GHz
 1,786
ARM Neoverse-N1 128 Core 3000 MHz
 1,329
ARM Neoverse-N1 80 Core 3000 MHz
 1,328
[Dual CPU] Intel Xeon E5645 @ 2.40GHz
 1,176
ARM Neoverse-N1 64 Core 0 MHz
 1,093
Last 5 Baselines for [Dual CPU] Intel Xeon E5645 @ 2.40GHz
Most recent listed first
Baseline CPU Mark
BL3038706 - Nov 09 2025
9367
BL3038537 - Nov 09 2025
9344
BL3036405 - Nov 08 2025
9445
BL3035873 - Nov 07 2025
9122
BL3017093 - Oct 31 2025
6568
Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.
Popular comparisons for Intel Xeon E5645 @ 2.40GHz
As of 13th of November 2025 - Higher results represent better performance
Processor Average CPU Mark
Intel Xeon E5645 @ 2.40GHz
 9,191
Intel Xeon E5-1650 v2 @ 3.50GHz vs Intel Xeon E5645
 9,294 (+1.1%)
Intel Xeon E5-1660 @ 3.30GHz vs Intel Xeon E5645
 8,324 (-9.4%)
Intel Xeon E5-2687W @ 3.10GHz vs Intel Xeon E5645
 10,040 (+9.2%)
Intel Xeon E5-1650 @ 3.20GHz vs Intel Xeon E5645
 8,076 (-12.1%)
Intel Xeon W3690 @ 3.47GHz vs Intel Xeon E5645
 7,181 (-21.9%)
Intel Xeon X5690 @ 3.47GHz vs Intel Xeon E5645
 7,032 (-23.5%)
Intel Xeon W3670 @ 3.20GHz vs Intel Xeon E5645
 6,424 (-30.1%)
Intel Xeon E5-1660 v2 @ 3.70GHz vs Intel Xeon E5645
 10,332 (+12.4%)
Intel Xeon E5-2643 v3 @ 3.40GHz vs Intel Xeon E5645
 10,276 (+11.8%)
Intel Xeon E5-1630 v3 @ 3.70GHz vs Intel Xeon E5645
 7,419 (-19.3%)
Intel Xeon E5-1620 v4 @ 3.50GHz vs Intel Xeon E5645
 7,337 (-20.2%)
Intel Xeon E3-1241 v3 @ 3.50GHz vs Intel Xeon E5645
 7,161 (-22.1%)