i5-1155G7 vs i7-3840QM

Primary details

Comparing Core i7-3840QM and Core i5-1155G7 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1488	1064
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	Tiger Lake
Power efficiency	7.78	21.28
Architecture codename	Ivy Bridge (2012−2013)	Tiger Lake-UP3 (2020−2021)
Release date	3 September 2012 (12 years ago)	31 May 2021 (3 years ago)
Launch price (MSRP)	$568	no data

Detailed specifications

Core i7-3840QM and Core i5-1155G7 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	8
Base clock speed	2.8 GHz	2.5 GHz
Boost clock speed	3.8 GHz	4.5 GHz
Bus rate	5 GT/s	4 GT/s
L1 cache	64K (per core)	96K (per core)
L2 cache	256K (per core)	1.25 MB (per core)
L3 cache	8 MB (shared)	8 MB (shared)
Chip lithography	22 nm	10 nm SuperFin
Die size	160 mm2	no data
Maximum core temperature	105 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i7-3840QM and Core i5-1155G7 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	FCBGA1224,FCPGA988	FCBGA1449
Power consumption (TDP)	45 Watt	28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3840QM and Core i5-1155G7. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
FMA	-	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
My WiFi	+	no data
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
FDI	+	no data
Fast Memory Access	+	no data
Deep Learning Boost	-	+

Security technologies

Core i7-3840QM and Core i5-1155G7 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3840QM and Core i5-1155G7 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3840QM and Core i5-1155G7. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	32 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 4000	Intel® Iris® Xe Graphics eligible
Quick Sync Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.3 GHz	1.35 GHz
Execution Units	no data	80
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-3840QM and Core i5-1155G7 integrated GPUs.

Number of displays supported	3	4
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-3840QM and Core i5-1155G7 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096x2304@60Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	7680x4320@60Hz

Graphics API support

APIs supported by Core i7-3840QM and Core i5-1155G7 integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Core i7-3840QM and Core i5-1155G7.

PCIe version	3.0	4.0
PCI Express lanes	16	16

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	3.72	6.33
Recency	3 September 2012	31 May 2021
Chip lithography	22 nm	10 nm
Power consumption (TDP)	45 Watt	28 Watt

---

Should you still have questions on choice between Core i7-3840QM and Core i5-1155G7, 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.

---