A8-3820 vs Xeon E3-1280

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Aggregate performance score

Xeon E3-1280
2011
4 cores / 8 threads, 95 Watt
3.54
+158%
A8-3820
2011
4 cores / 4 threads, 65 Watt
1.37

Xeon E3-1280 outperforms A8-3820 by a whopping 158% based on our aggregate benchmark results.

Primary details

Comparing Xeon E3-1280 and A8-3820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking15312240
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.13no data
Market segmentServerDesktop processor
Power efficiency3.521.99
Architecture codenameSandy Bridge (2011−2013)Llano (2011−2012)
Release date3 April 2011 (13 years ago)20 December 2011 (13 years ago)
Launch price (MSRP)$450no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E3-1280 and A8-3820 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 cores4 (Quad-Core)4 (Quad-Core)
Threads84
Base clock speed3.5 GHz2.5 GHz
Boost clock speed3.9 GHz2.8 GHz
L1 cache64 KB (per core)128 KB (per core)
L2 cache256 KB (per core)1 MB (per core)
L3 cache8 MB (shared)0 KB
Chip lithography32 nm32 nm
Die size216 mm2228 mm2
Maximum core temperature74 °Cno data
Number of transistors1,160 million1,178 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E3-1280 and A8-3820 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 configuration11
SocketLGA1155FM1
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1280 and A8-3820. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVXno data
AES-NI+-
AVX+-
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
Demand Based Switching+no data
FDI-no data
Fast Memory Access+no data

Security technologies

Xeon E3-1280 and A8-3820 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Identity Protection+-

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1280 and A8-3820 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 E3-1280 and A8-3820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size32 GBno data
Max memory channels2no data
Maximum memory bandwidth21 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon HD 6550D

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1280 and A8-3820.

PCIe version2.0no data
PCI Express lanes20no 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 E3-1280 3.54
+158%
A8-3820 1.37

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 E3-1280 5623
+158%
A8-3820 2180

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 E3-1280 654
+115%
A8-3820 304

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 E3-1280 2194
+136%
A8-3820 929

Gaming performance

Pros & cons summary


Performance score 3.54 1.37
Recency 3 April 2011 20 December 2011
Threads 8 4
Power consumption (TDP) 95 Watt 65 Watt

Xeon E3-1280 has a 158.4% higher aggregate performance score, and 100% more threads.

A8-3820, on the other hand, has an age advantage of 8 months, and 46.2% lower power consumption.

The Xeon E3-1280 is our recommended choice as it beats the A8-3820 in performance tests.

Be aware that Xeon E3-1280 is a server/workstation processor while A8-3820 is a desktop one.


Should you still have questions on choice between Xeon E3-1280 and A8-3820, ask them in Comments section, and we shall answer.

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Intel Xeon E3-1280
Xeon E3-1280
AMD A8-3820
A8-3820

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

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