Ryzen 9 7945HX vs i7-3840QM

VS

Aggregate performance score

Core i7-3840QM
2012
4 cores / 8 threads, 45 Watt
3.72
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
34.41
+825%

Ryzen 9 7945HX outperforms Core i7-3840QM by a whopping 825% based on our aggregate benchmark results.

Primary details

Comparing Core i7-3840QM and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1479110
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7no data
Power efficiency7.8259.21
Architecture codenameIvy Bridge (2012−2013)Dragon Range-HX (Zen 4) (2023−2024)
Release date3 September 2012 (12 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$568no data

Detailed specifications

Core i7-3840QM and Ryzen 9 7945HX 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)16 (Hexadeca-Core)
Threads832
Base clock speed2.8 GHz2.5 GHz
Boost clock speed3.8 GHz5.4 GHz
Bus rate5 GT/sno data
L1 cache64K (per core)64K (per core)
L2 cache256K (per core)1 MB (per core)
L3 cache8 MB (shared)64 MB (shared)
Chip lithography22 nmCCD = 5 nm, I/O = 6 nm
Die size160 mm22x 71 mm2
Maximum core temperature105 °C100 °C
Number of transistors1,400 million13,140 million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier-+

Compatibility

Information on Core i7-3840QM and Ryzen 9 7945HX 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,FCPGA988FL1
Power consumption (TDP)45 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3840QM and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI++
FMA-+
AVX++
Enhanced SpeedStep (EIST)+no data
My WiFi+no data
Turbo Boost Technology2.0no 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 2no data+

Security technologies

Core i7-3840QM and Ryzen 9 7945HX 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 7945HX 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 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5
Maximum memory size32 GBno data
Max memory channels2no data
Maximum memory bandwidth25.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 4000AMD Radeon 610M
Quick Sync Video+-
Clear Video HD+no data
Graphics max frequency1.3 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-3840QM and Ryzen 9 7945HX integrated GPUs.

Number of displays supported3no data
eDP+no data
DisplayPort+-
HDMI+-
SDVO+no data
CRT+no data

Peripherals

Specifications and connection of peripherals supported by Core i7-3840QM and Ryzen 9 7945HX.

PCIe version3.05.0
PCI Express lanes1628

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 3.72
Ryzen 9 7945HX 34.41
+825%

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
Ryzen 9 7945HX 54653
+826%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-3840QM 621
Ryzen 9 7945HX 2735
+340%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-3840QM 2063
Ryzen 9 7945HX 15897
+671%

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
Ryzen 9 7945HX 8462
+64.5%

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
Ryzen 9 7945HX 71611
+256%

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
Ryzen 9 7945HX 19820
+183%

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
Ryzen 9 7945HX 1.99
+271%

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
Ryzen 9 7945HX 62
+769%

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
Ryzen 9 7945HX 3.65
+130%

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
Ryzen 9 7945HX 27.7
+669%

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
Ryzen 9 7945HX 236
+517%

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
Ryzen 9 7945HX 369
+134%

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
Ryzen 9 7945HX 14532
+208%

Gaming performance

Pros & cons summary


Performance score 3.72 34.41
Integrated graphics card 1.18 2.85
Recency 3 September 2012 4 January 2023
Physical cores 4 16
Threads 8 32
Power consumption (TDP) 45 Watt 55 Watt

i7-3840QM has 22.2% lower power consumption.

Ryzen 9 7945HX, on the other hand, has a 825% higher aggregate performance score, 141.5% faster integrated GPU, an age advantage of 10 years, and 300% more physical cores and 300% more threads.

The Ryzen 9 7945HX 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 Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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Intel Core i7-3840QM
Core i7-3840QM
AMD Ryzen 9 7945HX
Ryzen 9 7945HX

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