Pentium Silver J5005 vs i7-3940XM

Primary details

Comparing Core i7-3940XM and Pentium Silver J5005 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1496	1954
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	1.50
Market segment	Laptop	Desktop processor
Series	Intel Core i7	Intel Pentium Silver
Power efficiency	6.33	18.45
Architecture codename	Ivy Bridge (2012−2013)	Goldmont Plus (2017)
Release date	3 September 2012 (12 years ago)	11 December 2017 (7 years ago)
Launch price (MSRP)	$1,096	$161

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-3940XM and Pentium Silver J5005 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)	4 (Quad-Core)
Threads	8	4
Base clock speed	3 GHz	1.5 GHz
Boost clock speed	3.9 GHz	2.8 GHz
Bus rate	5 GT/s	no data
Multiplier	no data	15
L1 cache	64K (per core)	256 KB
L2 cache	256K (per core)	4 MB
L3 cache	8 MB (shared)	4 MB (shared)
Chip lithography	22 nm	14 nm
Die size	160 mm2	93 mm2
Maximum core temperature	105 °C	105 deg C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on Core i7-3940XM and Pentium Silver J5005 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 (Uniprocessor)
Socket	FCPGA988	FCBGA1090
Power consumption (TDP)	55 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3940XM and Pentium Silver J5005. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	-
My WiFi	+	no data
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Smart Response	no data	-
Demand Based Switching	-	no data
GPIO	no data	+
Turbo Boost Max 3.0	no data	-
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i7-3940XM and Pentium Silver J5005 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3940XM and Pentium Silver J5005 are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3940XM and Pentium Silver J5005. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	upto-2400
Maximum memory size	32 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	38.397 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 4000	Intel UHD Graphics 605
Max video memory	no data	8 GB
Quick Sync Video	+	+
Clear Video HD	+	no data
Graphics max frequency	1.35 GHz	800 MHz
Execution Units	no data	18
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-3940XM and Pentium Silver J5005 integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
MIPI-DSI	no data	+
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-3940XM and Pentium Silver J5005 integrated GPUs, including resolutions over different interfaces.

4K resolution support

no data

+

Graphics API support

APIs supported by Core i7-3940XM and Pentium Silver J5005 integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.4

Peripherals

Specifications and connection of peripherals supported by Core i7-3940XM and Pentium Silver J5005.

PCIe version	3.0	2.0
PCI Express lanes	16	6
USB revision	no data	2.0/3.0
Total number of SATA ports	no data	2
Max number of SATA 6 Gb/s Ports	no data	2
Number of USB ports	no data	8
Integrated LAN	no data	-
UART	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	3.68	1.95
Recency	3 September 2012	11 December 2017
Threads	8	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	55 Watt	10 Watt

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Should you still have questions on choice between Core i7-3940XM and Pentium Silver J5005, ask them in Comments section, and we shall answer.

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