i7-2840QM vs i7-8650U

Primary details

Comparing Core i7-8650U and Core i7-2840QM processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1444	1779
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	Intel Core i7
Power efficiency	24.67	5.06
Architecture codename	Kaby Lake Refresh (2017−2019)	Sandy Bridge (2011−2013)
Release date	21 August 2017 (7 years ago)	4 September 2011 (13 years ago)
Launch price (MSRP)	$409	no data

Detailed specifications

Core i7-8650U and Core i7-2840QM 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	1.9 GHz	no data
Boost clock speed	4.2 GHz	2.4 GHz
Bus type	OPI	DMI 2.0
Bus rate	4 GT/s	4 × 5 GT/s
Multiplier	19	24
L1 cache	64K (per core)	256 KB
L2 cache	256K (per core)	1 MB
L3 cache	8 MB (shared)	8 MB
Chip lithography	14 nm	32 nm
Die size	123 mm2	216 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	1160 Million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Core i7-8650U and Core i7-2840QM 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)	1 (Uniprocessor)
Socket	FCBGA1356,FC-BGA1356	Socket G2
Power consumption (TDP)	15 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-8650U and Core i7-2840QM. 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	+	+
FMA	-	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
SIPP	+	-
Smart Response	+	no data

Security technologies

Core i7-8650U and Core i7-2840QM technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-8650U and Core i7-2840QM are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-8650U and Core i7-2840QM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	no data
Maximum memory size	32 GB	32 GB
Max memory channels	2	no data
Maximum memory bandwidth	38.397 GB/s	25.598 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics 620	Intel HD Graphics 3000
Max video memory	32 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.15 GHz	no data

Graphics interfaces

Available interfaces and connections of Core i7-8650U and Core i7-2840QM integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
DVI	+	no data

Graphics image quality

Maximum display resolutions supported by Core i7-8650U and Core i7-2840QM 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 i7-8650U and Core i7-2840QM integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-8650U and Core i7-2840QM.

PCIe version	3.0	no data
PCI Express lanes	12	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	3.93	2.42
Integrated graphics card	2.67	0.66
Recency	21 August 2017	4 September 2011
Chip lithography	14 nm	32 nm
Power consumption (TDP)	15 Watt	45 Watt

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Should you still have questions on choice between Core i7-8650U and Core i7-2840QM, ask them in Comments section, and we shall answer.

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