Celeron N2840 vs Xeon E3-1275 v2

Primary details

Comparing Xeon E3-1275 v2 and Celeron N2840 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1394	3040
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.88	no data
Market segment	Server	Laptop
Series	no data	Intel Celeron
Power efficiency	5.12	5.00
Architecture codename	Ivy Bridge (2012−2013)	Bay Trail-M (2013−2014)
Release date	14 May 2012 (12 years ago)	22 May 2014 (10 years ago)
Launch price (MSRP)	$808	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E3-1275 v2 and Celeron N2840 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	4 (Quad-Core)	2 (Dual-core)
Threads	8	2
Base clock speed	3.5 GHz	2.16 GHz
Boost clock speed	3.9 GHz	2.58 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	56K (per core)
L2 cache	256 KB (per core)	512K (per core)
L3 cache	8 MB (shared)	0 KB
Chip lithography	22 nm	22 nm
Die size	160 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E3-1275 v2 and Celeron N2840 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	1
Socket	FCLGA1155	FCBGA1170
Power consumption (TDP)	77 Watt	7.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1275 v2 and Celeron N2840. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	+	no data
Smart Connect	no data	+
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Xeon E3-1275 v2 and Celeron N2840 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	+
Secure Key	no data	+
Identity Protection	+	-
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1275 v2 and Celeron N2840 are enumerated here.

VT-d	+	-
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1275 v2 and Celeron N2840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32.77 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	21.32 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD P4000	Intel HD Graphics for Intel Atom Processor Z3700 Series
Quick Sync Video	+	+
Clear Video HD	+	-
Graphics max frequency	1.25 GHz	792 MHz
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Xeon E3-1275 v2 and Celeron N2840 integrated GPUs.

Number of displays supported

3

2

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1275 v2 and Celeron N2840.

PCIe version	3.0	2.0
PCI Express lanes	no data	4
USB revision	no data	3.0 and 2.0
Total number of SATA ports	no data	2
Number of USB ports	no data	5

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

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Pros & cons summary

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Performance score	4.17	0.37
Recency	14 May 2012	22 May 2014
Physical cores	4	2
Threads	8	2
Power consumption (TDP)	77 Watt	7 Watt

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Should you still have questions on choice between Xeon E3-1275 v2 and Celeron N2840, ask them in Comments section, and we shall answer.

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