i9-12900H vs i7-3840QM

Aggregate performance score

Core i7-3840QM
2012
4 cores / 8 threads, 45 Watt
3.79
Core i9-12900H
2022
14 cores / 20 threads, 45 Watt
17.93
+373%

Core i9-12900H outperforms Core i7-3840QM by a whopping 373% based on our aggregate benchmark results.

Primary details

Comparing Core i7-3840QM and Core i9-12900H processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1477351
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Alder Lake-P
Power efficiency7.8237.01
Architecture codenameIvy Bridge (2012−2013)Alder Lake-H (2022)
Release date3 September 2012 (12 years ago)4 January 2022 (2 years ago)
Launch price (MSRP)$568no data

Detailed specifications

Core i7-3840QM and Core i9-12900H 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 cores4 (Quad-Core)14 (Tetradeca-Core)
Threads820
Base clock speed2.8 GHz2.5 GHz
Boost clock speed3.8 GHz5 GHz
Bus rate5 GT/sno data
L1 cache64K (per core)80K (per core)
L2 cache256K (per core)1.25 MB (per core)
L3 cache8 MB (shared)24 MB (shared)
Chip lithography22 nmIntel 7 nm
Die size160 mm2217 mm2
Maximum core temperature105 °C100 °C
Number of transistors1,400 millionno data
64 bit support++
Windows 11 compatibility-+

Compatibility

Information on Core i7-3840QM and Core i9-12900H 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 configuration11
SocketFCBGA1224,FCPGA988FCBGA1744
Power consumption (TDP)45 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3840QM and Core i9-12900H. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA-+
AVX++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology++
TSX-+
Idle States+no data
Thermal Monitoring++
Flex Memory Access++
SIPP-+
Demand Based Switching-no data
Turbo Boost Max 3.0no data+
FDI+no data
Fast Memory Access+no data
Deep Learning Boost-+

Security technologies

Core i7-3840QM and Core i9-12900H technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3840QM and Core i9-12900H 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 i9-12900H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4, DDR5
Maximum memory size32 GB64 GB
Max memory channels22
Maximum memory bandwidth25.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 4000Intel® Iris® Xe Graphics eligible
Quick Sync Video++
Clear Video HD+no data
Graphics max frequency1.3 GHz1.45 GHz
Execution Unitsno data96
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-3840QM and Core i9-12900H integrated GPUs.

Number of displays supported34
eDP+no data
DisplayPort+-
HDMI+-
SDVO+no data
CRT+no data

Graphics image quality

Maximum display resolutions supported by Core i7-3840QM and Core i9-12900H integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2304 @ 60Hz
Max resolution over eDPno data4096 x 2304 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i7-3840QM and Core i9-12900H integrated GPUs, sometimes API versions are included.

DirectXno data12.1
OpenGLno data4.6

Peripherals

Specifications and connection of peripherals supported by Core i7-3840QM and Core i9-12900H.

PCIe version3.04.0
PCI Express lanes1620

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.

i7-3840QM 3.79
i9-12900H 17.93
+373%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-3840QM 5905
i9-12900H 27944
+373%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-3840QM 5145
i9-12900H 8235
+60.1%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-3840QM 20135
i9-12900H 47767
+137%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-3840QM 6998
i9-12900H 13453
+92.2%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-3840QM 7.39
i9-12900H 4.03
+83.4%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-3840QM 7
i9-12900H 25
+258%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-3840QM 1.59
i9-12900H 2.99
+88.1%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-3840QM 3.6
i9-12900H 10.3
+186%

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-3840QM 38
i9-12900H 111
+192%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-3840QM 158
i9-12900H 263
+66.8%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-3840QM 4712
i9-12900H 7937
+68.4%

Gaming performance

Pros & cons summary


Performance score 3.79 17.93
Recency 3 September 2012 4 January 2022
Physical cores 4 14
Threads 8 20

i9-12900H has a 373.1% higher aggregate performance score, an age advantage of 9 years, and 250% more physical cores and 150% more threads.

The Core i9-12900H is our recommended choice as it beats the Core i7-3840QM in performance tests.


Should you still have questions on choice between Core i7-3840QM and Core i9-12900H, 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.


Intel Core i7-3840QM
Core i7-3840QM
Intel Core i9-12900H
Core i9-12900H

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.6 183 votes

Rate Core i7-3840QM on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4 608 votes

Rate Core i9-12900H on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-3840QM or Core i9-12900H, agree or disagree with our judgements, or report an error or mismatch.