i7-3770K vs i7-7740X

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Aggregate performance score

Core i7-7740X
2017
4 cores / 8 threads, 112 Watt
6.06
+48.5%
Core i7-3770K
2012
4 cores / 8 threads, 77 Watt
4.08

Core i7-7740X outperforms Core i7-3770K by a considerable 49% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7740X and Core i7-3770K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking11011411
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.320.71
Market segmentDesktop processorDesktop processor
SeriesCore i7 (Desktop)Intel Core i7 (Desktop)
Power efficiency5.125.01
Architecture codenameKaby Lake-X (2017)Ivy Bridge (2012−2013)
Release date26 June 2017 (7 years ago)29 April 2012 (12 years ago)
Launch price (MSRP)$339$294

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-7740X has 227% better value for money than i7-3770K.

Detailed specifications

Core i7-7740X and Core i7-3770K 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)4 (Quad-Core)
Threads88
Base clock speed4.3 GHz3.5 GHz
Boost clock speed4.5 GHz3.9 GHz
Bus typeDMI 3.0DMI
Bus rate4 × 8 GT/s5 GT/s
Multiplierno data35
L1 cache64K (per core)64 KB (per core)
L2 cache256K (per core)256K (per core)
L3 cache8 MB (shared)8 MB (shared)
Chip lithography14 nm22 nm
Die sizeno data160 mm2
Maximum core temperature100 °C67 °C
Maximum case temperature (TCase)72 °C67 °C
Number of transistorsno data1,400 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier++

Compatibility

Information on Core i7-7740X and Core i7-3770K 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 configuration1 (Uniprocessor)1
SocketFCLGA2066FCLGA1155
Power consumption (TDP)112 Watt77 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7740X and Core i7-3770K. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX+-
Idle Statesno data+
Thermal Monitoring-+
FDIno data+

Security technologies

Core i7-7740X and Core i7-3770K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+
Secure Keyno data+
Identity Protection-+
Anti-Theftno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7740X and Core i7-3770K are enumerated here.

AMD-V+-
VT-d+-
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7740X and Core i7-3770K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR3
Maximum memory size64 GB32 GB
Max memory channels22
Maximum memory bandwidth42.671 GB/s25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardHD 630Intel HD Graphics 4000
Quick Sync Video-+
Clear Video HDno data+
Graphics max frequencyno data1.15 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i7-7740X and Core i7-3770K integrated GPUs.

Number of displays supportedno data3

Peripherals

Specifications and connection of peripherals supported by Core i7-7740X and Core i7-3770K.

PCIe version3.03.0
PCI Express lanes1616

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.

i7-7740X 6.06
+48.5%
i7-3770K 4.08

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.

i7-7740X 9621
+48.6%
i7-3770K 6473

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.

i7-7740X 1655
+132%
i7-3770K 712

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.

i7-7740X 5341
+114%
i7-3770K 2499

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.

i7-7740X 7397
+33.6%
i7-3770K 5536

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.

i7-7740X 29538
+33.1%
i7-3770K 22190

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.

i7-7740X 10252
+41.8%
i7-3770K 7229

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.

i7-7740X 5.44
+17.5%
i7-3770K 6.39

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.

i7-7740X 11
+41%
i7-3770K 8

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.

i7-7740X 2.21
+33.9%
i7-3770K 1.65

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.

i7-7740X 5.6
+43.6%
i7-3770K 3.9

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.

i7-7740X 6417
+73.5%
i7-3770K 3698

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.  

i7-7740X 62
+42.2%
i7-3770K 43

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.  

i7-7740X 234
+35.6%
i7-3770K 172

Geekbench 3 32-bit multi-core

i7-7740X 18222
+42%
i7-3770K 12835

Geekbench 3 32-bit single-core

i7-7740X 4541
+36.7%
i7-3770K 3322

Geekbench 2

i7-7740X 15416
+24%
i7-3770K 12435

Gaming performance

Pros & cons summary


Performance score 6.06 4.08
Recency 26 June 2017 29 April 2012
Chip lithography 14 nm 22 nm
Power consumption (TDP) 112 Watt 77 Watt

i7-7740X has a 48.5% higher aggregate performance score, an age advantage of 5 years, and a 57.1% more advanced lithography process.

i7-3770K, on the other hand, has 45.5% lower power consumption.

The Core i7-7740X is our recommended choice as it beats the Core i7-3770K in performance tests.


Should you still have questions on choice between Core i7-7740X and Core i7-3770K, ask them in Comments section, and we shall answer.

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Intel Core i7-7740X
Core i7-7740X
Intel Core i7-3770K
Core i7-3770K

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Community ratings

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Questions & comments

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