Ryzen 9 3900XT vs i7-3840QM

Primary details

Comparing Core i7-3840QM and Ryzen 9 3900XT processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1477	268
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	24.87
Market segment	Laptop	Desktop processor
Series	Intel Core i7	AMD Ryzen 9
Power efficiency	7.82	18.54
Architecture codename	Ivy Bridge (2012−2013)	Matisse 2 (2020)
Release date	3 September 2012 (12 years ago)	16 June 2020 (4 years ago)
Launch price (MSRP)	$568	$499

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-3840QM and Ryzen 9 3900XT 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)	12 (Dodeca-Core)
Threads	8	24
Base clock speed	2.8 GHz	3.8 GHz
Boost clock speed	3.8 GHz	4.7 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	768 KB
L2 cache	256K (per core)	6 MB
L3 cache	8 MB (shared)	64 MB
Chip lithography	22 nm	7 nm, 12 nm
Die size	160 mm2	74 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	1,400 million	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Core i7-3840QM and Ryzen 9 3900XT 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	AM4
Power consumption (TDP)	45 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3840QM and Ryzen 9 3900XT. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Precision Boost 2	no data	+

Security technologies

Core i7-3840QM and Ryzen 9 3900XT technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3840QM and Ryzen 9 3900XT are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3840QM and Ryzen 9 3900XT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-3200
Maximum memory size	32 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	51.196 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 4000	-
Quick Sync Video	+	-
Clear Video HD	+	-
Graphics max frequency	1.3 GHz	-
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Core i7-3840QM and Ryzen 9 3900XT integrated GPUs.

Number of displays supported	3	-
eDP	+	-
DisplayPort	+	-
HDMI	+	-
SDVO	+	-
CRT	+	-

Peripherals

Specifications and connection of peripherals supported by Core i7-3840QM and Ryzen 9 3900XT.

PCIe version	3.0	4.0
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	3.79	20.96
Recency	3 September 2012	16 June 2020
Physical cores	4	12
Threads	8	24
Chip lithography	22 nm	7 nm
Power consumption (TDP)	45 Watt	105 Watt

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Should you still have questions on choice between Core i7-3840QM and Ryzen 9 3900XT, ask them in Comments section, and we shall answer.

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