Opteron 6220 vs Xeon E5645

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Aggregate performance score

Xeon E5645
2010
6 cores / 12 threads, 80 Watt
3.09
+4.4%
Opteron 6220
2011
8 cores / 8 threads, 115 Watt
2.96

Xeon E5645 outperforms Opteron 6220 by a minimal 4% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking17731796
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.320.68
Market segmentServerServer
Power efficiency3.732.48
DesignerIntelAMD
ManufacturerIntelGlobalFoundries
Architecture codenameWestmere-EP (2010−2011)Interlagos (2011−2012)
Release date16 March 2010 (15 years ago)14 November 2011 (13 years ago)
Launch price (MSRP)$294$523

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5645 has 94% better value for money than Opteron 6220.

Performance to price scatter graph

Detailed specifications

Xeon E5645 and Opteron 6220 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 cores6 (Hexa-Core)8 (Octa-Core)
Threads128
Base clock speed2.4 GHz3 GHz
Boost clock speed2.67 GHz3.6 GHz
L1 cache64 KB (per core)768 KB
L2 cache256 KB (per core)2 MB (per module)
L3 cache12 MB (shared)8 MB (per die)
Chip lithography32 nm32 nm
Die size239 mm22x 315 mm2
Maximum core temperature76 °Cno data
Maximum case temperature (TCase)no data69 °C
Number of transistors1,170 million2,400 million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Xeon E5645 and Opteron 6220 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 configuration24
SocketFCLGA1366,LGA1366G34
Power consumption (TDP)80 Watt115 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5645 and Opteron 6220. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2no data
AES-NI++
FMA-+
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology1.0no data
Hyper-Threading Technology+no data
Idle States+no data
Demand Based Switching+no data
PAE40 Bitno data

Security technologies

Xeon E5645 and Opteron 6220 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5645 and Opteron 6220 are enumerated here.

AMD-V-+
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5645 and Opteron 6220. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size288 GBno data
Max memory channels3no data
Maximum memory bandwidth32 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Xeon E5645 and Opteron 6220.

PCIe version2.02.0

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.

Xeon E5645 3.09
+4.4%
Opteron 6220 2.96

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. Other than that, Passmark measures multi-core performance.

Xeon E5645 4972
+4.6%
Opteron 6220 4753

Gaming performance

Pros & cons summary


Performance score 3.09 2.96
Recency 16 March 2010 14 November 2011
Physical cores 6 8
Threads 12 8
Power consumption (TDP) 80 Watt 115 Watt

Xeon E5645 has a 4.4% higher aggregate performance score, 50% more threads, and 43.8% lower power consumption.

Opteron 6220, on the other hand, has an age advantage of 1 year, and 33.3% more physical cores.

Given the minimal performance differences, no clear winner can be declared between Intel Xeon E5645 and AMD Opteron 6220.

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Intel Xeon E5645
Xeon E5645
AMD Opteron 6220
Opteron 6220

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Community ratings

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