Xeon E5345 vs i5-9400

Primary details

Comparing Core i5-9400 and Xeon E5345 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1101	2355
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.25	0.04
Market segment	Desktop processor	Server
Series	Intel Core i5	no data
Power efficiency	8.59	1.40
Architecture codename	Coffee Lake (2017−2019)	Clovertown (2006−2007)
Release date	19 October 2018 (6 years ago)	14 November 2006 (18 years ago)
Launch price (MSRP)	$182	$851

Cost-effectiveness evaluation

Performance per price, higher is better.

i5-9400 has 20525% better value for money than Xeon E5345.

Detailed specifications

Core i5-9400 and Xeon E5345 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)	4 (Quad-Core)
Threads	6	4
Base clock speed	2.9 GHz	2.33 GHz
Boost clock speed	4.1 GHz	0.33 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	29	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	4 MB (per die)
L3 cache	9 MB (shared)	8 MB L2 Cache
Chip lithography	14 nm	65 nm
Die size	149 mm2	2x 143 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	66 °C
Number of transistors	no data	582 million
64 bit support	+	+
Windows 11 compatibility	+	no data
VID voltage range	no data	1V-1.5V

Compatibility

Information on Core i5-9400 and Xeon E5345 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
Socket	FCLGA1151	LGA771,PLGA771
Power consumption (TDP)	65 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-9400 and Xeon E5345. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	no data	+
PAE	no data	32 Bit
FSB parity	no data	+

Security technologies

Core i5-9400 and Xeon E5345 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-9400 and Xeon E5345 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-9400 and Xeon E5345. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR2, DDR3 Depends on motherboard
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	42.671 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 630	N/A
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-9400 and Xeon E5345 integrated GPUs.

Number of displays supported

3

no data

Graphics image quality

Maximum display resolutions supported by Core i5-9400 and Xeon E5345 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096 x 2304@24Hz	no data
Max resolution over eDP	4096 x 2304@60Hz	no data
Max resolution over DisplayPort	4096 x 2304@60Hz	no data

Graphics API support

APIs supported by Core i5-9400 and Xeon E5345 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-9400 and Xeon E5345.

PCIe version	3.0	no data
PCI Express lanes	16	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	5.90	1.18
Recency	19 October 2018	14 November 2006
Physical cores	6	4
Threads	6	4
Chip lithography	14 nm	65 nm
Power consumption (TDP)	65 Watt	80 Watt

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Should you still have questions on choice between Core i5-9400 and Xeon E5345, ask them in Comments section, and we shall answer.

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