Xeon E-2456 vs i7-3820

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Aggregate performance score

Core i7-3820
2012
4 cores / 8 threads, 130 Watt
3.77
Xeon E-2456
2023
6 cores / 12 threads, 80 Watt
15.51
+311%

Xeon E-2456 outperforms Core i7-3820 by a whopping 311% based on our aggregate benchmark results.

Primary details

Comparing Core i7-3820 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1482465
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.3292.68
Market segmentDesktop processorServer
Power efficiency2.6417.68
Architecture codenameSandy Bridge-E (2011−2013)Raptor Lake-S (2023−2024)
Release dateFebruary 2012 (12 years ago)14 December 2023 (less than a year ago)
Launch price (MSRP)$400$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2456 has 3895% better value for money than i7-3820.

Detailed specifications

Core i7-3820 and Xeon E-2456 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)6 (Hexa-Core)
Threads812
Base clock speed3.6 GHz3.3 GHz
Boost clock speed3.8 GHz5.1 GHz
Bus rate5 GT/s16 GT/s
L1 cache64 KB (per core)80 KB (per core)
L2 cache256 KB (per core)1.25 MB (per core)
L3 cache10240 KB (shared)18 MB (shared)
Chip lithography32 nmIntel 7 nm
Die size294 mm2163 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)67 °Cno data
Number of transistors1270 millionno data
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Core i7-3820 and Xeon E-2456 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
SocketFCLGA2011FCLGA1700
Power consumption (TDP)130 Watt80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3820 and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2, Intel® AVXIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Smart Response+no data
Demand Based Switching-no data
Turbo Boost Max 3.0no data-

Security technologies

Core i7-3820 and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB++
Secure Keyno data+
Identity Protection+-
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3820 and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3820 and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5-4800
Maximum memory size64.23 GB128 GB
Max memory channels42
Maximum memory bandwidth51.2 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 Core i7-3820 and Xeon E-2456.

PCIe version2.05
PCI Express lanes4016

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.

i7-3820 3.77
Xeon E-2456 15.51
+311%

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.

i7-3820 5767
Xeon E-2456 23743
+312%

Gaming performance

Pros & cons summary


Performance score 3.77 15.51
Physical cores 4 6
Threads 8 12
Power consumption (TDP) 130 Watt 80 Watt

Xeon E-2456 has a 311.4% higher aggregate performance score, 50% more physical cores and 50% more threads, and 62.5% lower power consumption.

The Xeon E-2456 is our recommended choice as it beats the Core i7-3820 in performance tests.

Note that Core i7-3820 is a desktop processor while Xeon E-2456 is a server/workstation one.


Should you still have questions on choice between Core i7-3820 and Xeon E-2456, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-3820
Core i7-3820
Intel Xeon E-2456
Xeon E-2456

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


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Questions & comments

Here you can ask a question about Core i7-3820 or Xeon E-2456, agree or disagree with our judgements, or report an error or mismatch.