Average Bench: 75.9% (290th of 1439)

Based on 8 user benchmarks.  Device: BFEBFBFF000206C1 Model: Intel(R) Xeon(R) CPU X5677 @ 3.47GHz
Poor: 71%Average: 75.9% Great: 83%
Gaming 76%
Desktop 79%
Workstation 59%

Good average bench

The Intel Xeon X5677 averaged 24.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Intel Xeon X5677 near the top of the comparison list.


Avg. Memory Latency 94.1Pts
Avg. Single Core Speed 89.6Pts

Very good consistency

The range of scores (95th - 5th percentile) for the Intel Xeon X5677 is just 12.3%. This is a relatively narrow range which indicates that the Intel Xeon X5677 performs reasonably consistently under varying real world conditions.


Avg. Multi Core Speed 455Pts
Avg. Octa Core Speed 440Pts

Average Bench

(Based on 8 samples)
Min Avg Max
91.8 Memory 94.1 97.4
81.8 1-Core 89.6 102
155 2-Core 176 207
71.6% 120 Pts
Min Avg Max
274 4-Core 317 380
373 8-Core 440 522
47.8% 379 Pts
Min Avg Max
421 64-Core 455 513
28.1% 455 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
LGA1366, 1 CPU, 4 cores, 8 threads
Base clock 4 GHz
Memory 97.4
1-Core 102
2-Core 207
79% 136 Pts
4-Core 380
8-Core 522
57% 451 Pts
64-Core 513
32% 513 Pts
CPU, 1 CPU, 4 cores, 8 threads
Base clock 3.45 GHz, turbo 3.55 GHz (avg)
Memory 95.6
1-Core 87.5
2-Core 175
72% 119 Pts
4-Core 356
8-Core 456
52% 406 Pts
64-Core 455
28% 455 Pts
CPU, 1 CPU, 4 cores, 8 threads
Base clock 3.45 GHz, turbo 3.55 GHz (avg)
Memory 94.7
1-Core 92.9
2-Core 174
72% 120 Pts
4-Core 284
8-Core 447
45% 366 Pts
64-Core 446
28% 446 Pts
CPU 1, 1 CPU, 4 cores, 8 threads
Base clock 3.45 GHz, turbo 3.6 GHz (avg)
Memory 92.8
1-Core 91.7
2-Core 174
71% 119 Pts
4-Core 274
8-Core 406
42% 340 Pts
64-Core 431
27% 431 Pts
CPU, 1 CPU, 4 cores, 8 threads
Base clock 3.45 GHz, turbo 3.55 GHz (avg)
Memory 86.1
1-Core 81.9
2-Core 178
68% 115 Pts
4-Core 243
8-Core 377
38% 310 Pts
64-Core 420
26% 420 Pts

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,373,156 CPUs tested

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Processor Rankings (Price vs Performance) March 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.



DescriptionIntel® Xeon® Processor X5677 (12M Cache, 3.46 GHz, 6.40 GT/s Intel® QPI)
Code NameWestmere EP
Launch DateQ1'10
Processor NumberX5677
# of Cores4
# of Threads8
Cache12 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.2
Embedded Options AvailableNo
Lithography32 nm
VID Voltage Range0.750V-1.350V
Recommended Price$1663.00
Clock Speed3.46 GHz
Max Turbo Frequency3.73 GHz
Bus Speed6.4 GT/s QPI
QPI Links2
Max TDP130 W


Max Memory Size288 GB
Memory TypesDDR3 800/1066/1333
Memory Channels3
Memory Bandwidth32 GB/s
Physical Address Extensions40-bit
ECC Memory SupportedYes

Data Protection

AES New InstructionsYes

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Thermal Monitoring TechnologiesNo
Turbo Boost Tech1.0
Hyper-Threading TechYes
Virtualization for Directed I/O (VT-d)Yes
VT-x with Extended Page Tables (EPT)Yes
Demand Based SwitchingYes


Package Size42.5mm X 45mm
Max CPU Configuration2
Sockets SupportedFCLGA1366

Platform Protection

Execute Disable BitYes
Trusted Execution TechYes


1439 Processors (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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