i5-655K vs Ryzen 9 7940HX

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Aggregate performance score

Ryzen 9 7940HX
2024
16 cores / 32 threads, 55 Watt
30.52
+2554%

Ryzen 9 7940HX outperforms Core i5-655K by a whopping 2554% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1652536
Place by popularitynot in top-100not in top-100
Market segmentLaptopDesktop processor
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)no data
Power efficiency23.450.67
DesignerAMDIntel
ManufacturerTSMCIntel
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Clarkdale (2010−2011)
Release date17 January 2024 (1 year ago)30 May 2010 (15 years ago)

Detailed specifications

Ryzen 9 7940HX and Core i5-655K 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 cores16 (Hexadeca-Core)2 (Dual-core)
Threads324
Base clock speed2.4 GHz3.2 GHz
Boost clock speed5.2 GHz3.46 GHz
Bus rateno data2.5 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache1 MB (per core)256 KB (per core)
L3 cache64 MB (shared)4 MB (shared)
Chip lithography5 nm32 nm
Die size2x 71 mm281 mm2
Maximum core temperature100 °C73 °C
Number of transistors13,140 million382 million
64 bit support++
Windows 11 compatibilityno data-
Unlocked multiplier++

Compatibility

Information on Ryzen 9 7940HX and Core i5-655K 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
SocketFL1FCLGA1156
Power consumption (TDP)55 Watt73 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7940HX and Core i5-655K. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, 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, SMEIntel® SSE4.2
AES-NI++
FMA+-
AVX+-
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data1.0
Hyper-Threading Technologyno data+
Idle Statesno data+
Demand Based Switchingno data-
PAEno data36 Bit
FDIno data+
Precision Boost 2+no data

Security technologies

Ryzen 9 7940HX and Core i5-655K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7940HX and Core i5-655K are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940HX and Core i5-655K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR3
Maximum memory sizeno data16.38 GB
Max memory channelsno data2
Maximum memory bandwidthno data21 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610M (400 - 2200 MHz)Intel HD Graphics for Previous Generation Intel Processors
Clear Video HDno data+

Graphics interfaces

Available interfaces and connections of Ryzen 9 7940HX and Core i5-655K integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7940HX and Core i5-655K.

PCIe version5.02.0
PCI Express lanes2816

Synthetic benchmarks

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.

Ryzen 9 7940HX 30.52
+2554%
i5-655K 1.15

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. Other than that, Passmark measures multi-core performance.

Ryzen 9 7940HX 53634
+2559%
Samples: 316
i5-655K 2017
Samples: 46

Gaming performance

Pros & cons summary


Performance score 30.52 1.15
Integrated graphics card 2.49 0.68
Recency 17 January 2024 30 May 2010
Physical cores 16 2
Threads 32 4
Chip lithography 5 nm 32 nm
Power consumption (TDP) 55 Watt 73 Watt

Ryzen 9 7940HX has a 2553.9% higher aggregate performance score, 266.2% faster integrated GPU, an age advantage of 13 years, 700% more physical cores and 700% more threads, a 540% more advanced lithography process, and 32.7% lower power consumption.

The AMD Ryzen 9 7940HX is our recommended choice as it beats the Intel Core i5-655K in performance tests.

Be aware that Ryzen 9 7940HX is a notebook processor while Core i5-655K is a desktop one.

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AMD Ryzen 9 7940HX
Ryzen 9 7940HX
Intel Core i5-655K
Core i5-655K

Other comparisons

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Community ratings

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4.1 220 votes

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3.6 36 votes

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