Xeon E-2456 vs E-2126G

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Aggregate performance score

Xeon E-2126G
2018
6 cores / 6 threads, 80 Watt
6.59
Xeon E-2456
2023
6 cores / 12 threads, 80 Watt
13.78
+109%

Xeon E-2456 outperforms Xeon E-2126G by a whopping 109% based on our aggregate benchmark results.

Primary details

Comparing Xeon E-2126G and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1043539
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation20.6884.01
Market segmentServerServer
SeriesIntel Xeon Eno data
Power efficiency7.7916.29
Architecture codenameCoffee Lake-S WS (2018−2019)Raptor Lake-S (2023−2024)
Release date12 July 2018 (6 years ago)14 December 2023 (1 year ago)
Launch price (MSRP)$255$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2456 has 306% better value for money than Xeon E-2126G.

Detailed specifications

Xeon E-2126G 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 cores6 (Hexa-Core)6 (Hexa-Core)
Threads612
Base clock speed3.3 GHz3.3 GHz
Boost clock speed4.5 GHz5.1 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s16 GT/s
L1 cache64 KB (per core)80 KB (per core)
L2 cache256 KB (per core)1.25 MB (per core)
L3 cache12 MB (shared)18 MB (shared)
Chip lithography14 nmIntel 7 nm
Die size154 mm2163 mm2
Maximum core temperature100 °C100 °C
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Xeon E-2126G 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 configuration1 (Uniprocessor)1
SocketFCLGA1151FCLGA1700
Power consumption (TDP)80 Watt80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2126G and Xeon E-2456. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02
Hyper-Threading Technology-+
TSX+-
Idle States++
Thermal Monitoring++
Turbo Boost Max 3.0no data-

Security technologies

Xeon E-2126G and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key++
MPX+-
SGXYes with Intel® MEno data
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2126G and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E-2126G and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5-4800
Maximum memory size128 GB128 GB
Max memory channels22
Maximum memory bandwidth42.671 GB/sno data
ECC memory support++

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics P630N/A
Max video memory128 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.15 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Xeon E-2126G and Xeon E-2456 integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Xeon E-2126G and Xeon E-2456 integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2160@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Xeon E-2126G and Xeon E-2456 integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Xeon E-2126G and Xeon E-2456.

PCIe version3.05
PCI Express lanes1616

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 E-2126G 6.59
Xeon E-2456 13.78
+109%

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 E-2126G 10474
Xeon E-2456 21882
+109%

Gaming performance

Pros & cons summary


Performance score 6.59 13.78
Recency 12 July 2018 14 December 2023
Threads 6 12

Xeon E-2456 has a 109.1% higher aggregate performance score, an age advantage of 5 years, and 100% more threads.

The Xeon E-2456 is our recommended choice as it beats the Xeon E-2126G in performance tests.


Should you still have questions on choice between Xeon E-2126G and Xeon E-2456, ask them in Comments section, and we shall answer.

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Intel Xeon E-2126G
Xeon E-2126G
Intel Xeon E-2456
Xeon E-2456

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Community ratings

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Questions & comments

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