Pentium G645 vs Xeon E5-2689

VS

Aggregate performance score

Xeon E5-2689
2012
8 cores / 16 threads, 115 Watt
6.25
+594%
Pentium G645
2012
2 cores / 2 threads, 65 Watt
0.90

Xeon E5-2689 outperforms Pentium G645 by a whopping 594% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2689 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking10822549
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.06
Market segmentServerDesktop processor
SeriesXeonno data
Power efficiency5.141.31
Architecture codenameSandy Bridge-EP (2012)Sandy Bridge (2011−2013)
Release date6 March 2012 (12 years ago)2 September 2012 (12 years ago)
Launch price (MSRP)no data$80

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5-2689 and Pentium G645 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores8 (Octa-Core)2 (Dual-core)
Threads162
Base clock speed2.6 GHz2.9 GHz
Boost clock speed3.6 GHz2.9 GHz
Bus rateno data5 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache20 MB (shared)3 MB (shared)
Chip lithography32 nm32 nm
Die size435 mm2131 mm2
Maximum core temperatureno data69 °C
Number of transistors2,270 million504 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5-2689 and Pentium G645 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration21
Socket2011FCLGA1155
Power consumption (TDP)115 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2689 and Pentium G645. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoring-+
Flex Memory Accessno data+
FDIno data+
Fast Memory Accessno data+

Security technologies

Xeon E5-2689 and Pentium G645 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2689 and Pentium G645 are enumerated here.

VT-d+-
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2689 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data17 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AIntel HD Graphics for 2nd Generation Intel Processors
Graphics max frequencyno data1.1 GHz

Graphics interfaces

Available interfaces and connections of Xeon E5-2689 and Pentium G645 integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2689 and Pentium G645.

PCIe version3.02.0
PCI Express lanes40no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon E5-2689 6.25
+594%
Pentium G645 0.90

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Xeon E5-2689 9922
+594%
Pentium G645 1429

Gaming performance

Pros & cons summary


Performance score 6.25 0.90
Recency 6 March 2012 2 September 2012
Physical cores 8 2
Threads 16 2
Power consumption (TDP) 115 Watt 65 Watt

Xeon E5-2689 has a 594.4% higher aggregate performance score, and 300% more physical cores and 700% more threads.

Pentium G645, on the other hand, has an age advantage of 5 months, and 76.9% lower power consumption.

The Xeon E5-2689 is our recommended choice as it beats the Pentium G645 in performance tests.

Be aware that Xeon E5-2689 is a server/workstation processor while Pentium G645 is a desktop one.


Should you still have questions on choice between Xeon E5-2689 and Pentium G645, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2689
Xeon E5-2689
Intel Pentium G645
Pentium G645

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Community ratings

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Questions & comments

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