Xeon E5-2643 v4 vs E-2126G

Primary details

Comparing Xeon E-2126G and Xeon E5-2643 v4 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1043	1006
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	20.70	1.33
Market segment	Server	Server
Series	Intel Xeon E	Intel Xeon E5
Power efficiency	7.79	4.93
Architecture codename	Coffee Lake-S WS (2018−2019)	Broadwell (2015−2019)
Release date	12 July 2018 (6 years ago)	20 June 2016 (8 years ago)
Launch price (MSRP)	$255	$1,552

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2126G has 1456% better value for money than Xeon E5-2643 v4.

Detailed specifications

Xeon E-2126G and Xeon E5-2643 v4 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 cores	6 (Hexa-Core)	6 (Hexa-Core)
Threads	6	12
Base clock speed	3.3 GHz	3.4 GHz
Boost clock speed	4.5 GHz	3.7 GHz
Bus type	DMI 3.0	QPI
Bus rate	4 × 8 GT/s	2 × 9.6 GT/s
Multiplier	no data	34
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	1.5 MB
L3 cache	12 MB (shared)	20 MB
Chip lithography	14 nm	14 nm
Die size	154 mm2	246.24 mm2
Maximum core temperature	100 °C	75 °C
Number of transistors	no data	3200 Million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Xeon E-2126G and Xeon E5-2643 v4 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 configuration	1 (Uniprocessor)	2 (Multiprocessor)
Socket	FCLGA1151	FCLGA2011
Power consumption (TDP)	80 Watt	135 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E-2126G and Xeon E5-2643 v4. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	-	+
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	-
Demand Based Switching	no data	+
PAE	no data	46 Bit

Security technologies

Xeon E-2126G and Xeon E5-2643 v4 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E-2126G and Xeon E5-2643 v4 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 E5-2643 v4. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400
Maximum memory size	128 GB	1.5 TB
Max memory channels	2	4
Maximum memory bandwidth	42.671 GB/s	76.8 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics P630	no data
Max video memory	128 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.15 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Xeon E-2126G and Xeon E5-2643 v4 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Xeon E-2126G and Xeon E5-2643 v4 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2160@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Xeon E-2126G and Xeon E5-2643 v4 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Xeon E-2126G and Xeon E5-2643 v4.

PCIe version	3.0	3.0
PCI Express lanes	16	40

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.

---

Pros & cons summary

---

Performance score	6.59	7.04
Recency	12 July 2018	20 June 2016
Threads	6	12
Power consumption (TDP)	80 Watt	135 Watt

---

Should you still have questions on choice between Xeon E-2126G and Xeon E5-2643 v4, 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.

---