Xeon X5550 vs E5-2665

VS

Aggregate performance score

Xeon E5-2665
2012
8 cores / 16 threads, 115 Watt
5.21
+173%
Xeon X5550
2009
4 cores / 8 threads, 95 Watt
1.91

Xeon E5-2665 outperforms Xeon X5550 by a whopping 173% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2665 and Xeon X5550 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking11971976
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation7.900.32
Market segmentServerServer
Power efficiency4.281.90
Architecture codenameSandy Bridge-EP (2012)Gainestown (2009−2010)
Release date6 March 2012 (12 years ago)30 March 2009 (15 years ago)
Launch price (MSRP)$142$62

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5-2665 has 2369% better value for money than Xeon X5550.

Detailed specifications

Xeon E5-2665 and Xeon X5550 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)4 (Quad-Core)
Threads168
Base clock speed2.4 GHz2.66 GHz
Boost clock speed3.1 GHz3.06 GHz
Bus rate8 GT/sno data
L1 cache64 KB (per core)64 KB (per core)
L2 cache256 KB (per core)256 KB (per core)
L3 cache20480 KB (shared)8 MB (shared)
Chip lithography32 nm45 nm
Die size435 mm2263 mm2
Maximum core temperature82 °C75 °C
Number of transistors2,270 million731 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5-2665 and Xeon X5550 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 configuration22
SocketFCLGA2011FCLGA1366,PLGA1366
Power consumption (TDP)115 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2665 and Xeon X5550. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXno data
AES-NI+-
AVX+-
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.01.0
Hyper-Threading Technology++
Idle States++
Thermal Monitoring+-
Flex Memory Access-no data
Demand Based Switching++
PAEno data40 Bit

Security technologies

Xeon E5-2665 and Xeon X5550 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2665 and Xeon X5550 are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2665 and Xeon X5550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size384 GB144 GB
Max memory channels43
Maximum memory bandwidth51.2 GB/s32 GB/s
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 E5-2665 and Xeon X5550.

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 E5-2665 5.21
+173%
Xeon X5550 1.91

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 E5-2665 8273
+173%
Xeon X5550 3027

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Xeon E5-2665 493
+12%
Xeon X5550 440

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Xeon E5-2665 2971
+63.1%
Xeon X5550 1822

Gaming performance

Pros & cons summary


Performance score 5.21 1.91
Recency 6 March 2012 30 March 2009
Physical cores 8 4
Threads 16 8
Chip lithography 32 nm 45 nm
Power consumption (TDP) 115 Watt 95 Watt

Xeon E5-2665 has a 172.8% higher aggregate performance score, an age advantage of 2 years, 100% more physical cores and 100% more threads, and a 40.6% more advanced lithography process.

Xeon X5550, on the other hand, has 21.1% lower power consumption.

The Xeon E5-2665 is our recommended choice as it beats the Xeon X5550 in performance tests.


Should you still have questions on choice between Xeon E5-2665 and Xeon X5550, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2665
Xeon E5-2665
Intel Xeon X5550
Xeon X5550

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Community ratings

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Questions & comments

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