Pentium G645 vs Xeon E5-2680 v4

Primary details

Comparing Xeon E5-2680 v4 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	694	2531
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.94	0.06
Market segment	Server	Desktop processor
Series	Intel Xeon (Desktop)	no data
Power efficiency	8.79	1.31
Architecture codename	Broadwell-EP (2016)	Sandy Bridge (2011−2013)
Release date	20 June 2016 (8 years ago)	2 September 2012 (12 years ago)
Launch price (MSRP)	$1,745	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5-2680 v4 has 4800% better value for money than Pentium G645.

Detailed specifications

Xeon E5-2680 v4 and Pentium G645 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	14 (Tetradeca-Core)	2 (Dual-core)
Threads	28	2
Base clock speed	2.4 GHz	2.9 GHz
Boost clock speed	3.3 GHz	2.9 GHz
Bus type	QPI	no data
Bus rate	2 × 9.6 GT/s	5 GT/s
Multiplier	24	no data
L1 cache	448 KB	64 KB (per core)
L2 cache	3.5 MB	256 KB (per core)
L3 cache	35 MB	3 MB (shared)
Chip lithography	14 nm	32 nm
Die size	306.18 mm2	131 mm2
Maximum core temperature	86 °C	69 °C
Number of transistors	4700 Million	504 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-2680 v4 and Pentium G645 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	2 (Multiprocessor)	1
Socket	FCLGA2011	FCLGA1155
Power consumption (TDP)	120 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2680 v4 and Pentium G645. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E5-2680 v4 and Pentium G645 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2680 v4 and Pentium G645 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2680 v4 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400	DDR3
Maximum memory size	1.5 TB	32 GB
Max memory channels	4	2
Maximum memory bandwidth	76.8 GB/s	17 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® HD Graphics for 2nd Generation Intel® Processors
Graphics max frequency	no data	1.1 GHz

Graphics interfaces

Available interfaces and connections of Xeon E5-2680 v4 and Pentium G645 integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2680 v4 and Pentium G645.

PCIe version	3.0	2.0
PCI Express lanes	40	no 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.

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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	11.15	0.90
Recency	20 June 2016	2 September 2012
Physical cores	14	2
Threads	28	2
Chip lithography	14 nm	32 nm
Power consumption (TDP)	120 Watt	65 Watt

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Should you still have questions on choice between Xeon E5-2680 v4 and Pentium G645, ask them in Comments section, and we shall answer.

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