TEST
YOUR CPU
ADD TO PC
BUILD

Intel BX80677I77740X

Core i7-7740X

▲ 53244 ▼

4 Cores, 8 Threads @4.30 GHz, Kaby Lake.
Release date ≈ Q3 2017.

Average Bench: 87% (171st of 1459)

Based on 5,094 user benchmarks.  Device: BFEBFBFF000906E9 Model: Intel(R) Core(TM) i7-7740X CPU @ 4.30GHz
Poor: 74%Average: 87% Great: 96%
Gaming
Gaming 87%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 74%
Battleship

Popular builds with this CPU

Very good average bench

The Intel Core i7-7740X averaged just 12.9% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Intel Core i7-7740X near the top of the comparison list.

Strengths

Avg. Memory Latency 90.5Pts
Avg. Single Core Speed 133Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i7-7740X is 22.6%. This is a relatively narrow range which indicates that the Intel Core i7-7740X performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Speed 710Pts
Avg. Octa Core Speed 699Pts
ADVERTISEMENT

Average Bench

(Based on 5,094 samples)
Rank 17187%
Min Avg Max
79.7 Memory 90.5 96.7
106 1-Core 133 151
206 2-Core 252 293
88.8% 158 Pts
Min Avg Max
348 4-Core 451 532
495 8-Core 699 819
70.9% 575 Pts
Min Avg Max
536 64-Core 710 824
43.9% 710 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
LGA 2066 R4, 1 CPU, 4 cores, 8 threads
Base clock 4.3 GHz, turbo 4.45 GHz (avg)
89.1% Excellent
Memory 94.8
1-Core 136
2-Core 259
92% 163 Pts
4-Core 449
8-Core 724
72% 586 Pts
64-Core 734
45% 734 Pts
LGA 2066 R4, 1 CPU, 4 cores, 8 threads
Base clock 4.3 GHz, turbo 4.45 GHz (avg)
88.1% Excellent
Memory 92.3
1-Core 136
2-Core 252
90% 160 Pts
4-Core 452
8-Core 711
72% 582 Pts
64-Core 720
45% 720 Pts
LGA 2066 R4, 1 CPU, 4 cores, 8 threads
Base clock 4.3 GHz, turbo 4.75 GHz (avg)
87.3% Excellent
Memory 86.3
1-Core 146
2-Core 271
93% 168 Pts
4-Core 477
8-Core 674
72% 576 Pts
64-Core 708
44% 708 Pts
U3E1, 1 CPU, 4 cores, 8 threads
Base clock 4.3 GHz, turbo 4.45 GHz (avg)
84.5% Excellent
Memory 84.7
1-Core 135
2-Core 261
88% 160 Pts
4-Core 453
8-Core 710
72% 582 Pts
64-Core 676
42% 676 Pts
LGA 2066 R4, 1 CPU, 4 cores, 8 threads
Base clock 4.3 GHz, turbo 4.45 GHz (avg)
84.3% Excellent
Memory 91.2
1-Core 136
2-Core 257
90% 162 Pts
4-Core 417
8-Core 615
64% 516 Pts
64-Core 731
45% 731 Pts
LGA 2066 R4, 1 CPU, 4 cores, 8 threads
Base clock 4.3 GHz, turbo 4.75 GHz (avg)
83.2% Excellent
Memory 91.6
1-Core 127
2-Core 243
87% 154 Pts
4-Core 403
8-Core 659
65% 531 Pts
64-Core 687
42% 687 Pts
5,094 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 68,305,468 CPUs tested

 Prices

If you buy via one of these links, our site may earn a commission

EbayUS $13012 mins
AmazonUS $1343 mins
BHPhotoUS $3505 years
Send price feedback
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical Core i7-7740X Builds (Compare 1,700 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 110%
UFO
Desktop
Desktop 96%
Nuclear submarine
Workstation
Workstation 95%
Nuclear submarine

Motherboard: Asus TUF X299 MARK 2

CPU
Core i7-7740XIntel  $130Bench 87%, 5,094 samples153x
GPU
GTX 1080-TiNvidia  $499Bench 124%, 840,268 samples173x
GTX 1080Nvidia  $195Bench 102%, 1,082,454 samples154x
RTX 2080-TiNvidia  $365Bench 156%, 357,946 samples98x
SSD
970 Evo Plus NVMe PCIe M.2 1TBSamsung  $95Bench 310%, 455,997 samples80x
970 Evo Plus NVMe PCIe M.2 500GBSamsung  $69Bench 275%, 495,311 samples62x
970 Evo NVMe PCIe M.2 1TBSamsung  $147Bench 297%, 331,647 samples57x
RAM
DDR4 3000 2OZ 2x8GBAdataBench 87%, 25,457 samples35x
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $43Bench 82%, 606,405 samples31x
Vengeance LPX DDR4 3000 C15 4x8GBCorsairBench 87%, 76,101 samples29x
EDIT WITH CUSTOM PC BUILDER Value: 75% - Very good Total price: $724

Popular Core i7-7740X compatible motherboards:

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware
Processor Rankings (Price vs Performance) July 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

ADVERTISEMENT

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Specifications

Essentials

DescriptionIntel® Core™ i7-7740X X-series Processor (8M Cache, up to 4.50 GHz)
Code NameKaby Lake
Launch DateQ2'17
Processor Numberi7-7740X
# of Cores4
# of Threads8
Cache8 MB
Instruction Set64-bit
Instruction Set ExtensionsSSE4.1/4.2, AVX2
Embedded Options AvailableNo
Lithography14 nm
Recommended Price$339.00 - $350.00
Clock Speed4.30 GHz
Max Turbo Frequency4.50 GHz
Bus Speed8 GT/s DMI3
QPI Links0
Scalability1S Only
Max TDP112 W
Thermal Solution SpecificationPCG 2017X
Product BriefLink

Graphics

Processor GraphicsNone

Memory

Max Memory Size64 GB
Memory TypesDDR4-2666
Memory Channels2
ECC Memory SupportedNo

Expansion Options

PCI Express Revision3.0
PCI Express ConfigurationsUp to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes16

Data Protection

AES New InstructionsYes

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Turbo Boost Tech2.0
Hyper-Threading TechYes
Virtualization for Directed I/O (VT-d)Yes

Package

Max CPU Configuration1
Sockets SupportedFCLGA2066

 Comments

Added n/a ago.
USA-User
Avatar level
9,918

Liked (edit your comment) Add link

11 days ago.

ESP-User
Avatar level
3,765

Poor

6 months ago.

para ser de gama extrema le faltan núcleos y solo soporta 64 gigas de ram,alto precio para lo que es

ARG-User
Avatar level
3,258

Excellent

6 years ago.

Es el mejor procesador de cuatro núcleos que se haya fabricado hasta la fecha 2018/01/27

HRV-User
Avatar level
2,338

Good

6 years ago.

Probably one of the worst possible solutions for anyone building a PC. It's rather expensive, offers practically no performance over the i7 7700K while equally priced Ryzen 7 1700 beats it almost everywhere, including in some games.

ColdSpy
Avatar level
330

Poor

4 years ago.

Kaby Lake-X CPUs is probably one of the Intel's most embarrassing release ever for their HEDT platform. Requires X299 motherboard and only offered 16 PCIe lanes whilst being only little better than i7-7700K.

Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 7 years

Speed Comparisons

vs Intel Core i5-12600K
vs Intel Core i5-12400F
vs Intel Core i5-13600K
vs Intel Core i7-14700K
vs AMD Ryzen 5 5600X
vs Intel Core i3-13100F
vs Intel Core i5-12400
vs AMD Ryzen 5 3600
vs Intel Core i7-9700K

1459 Processors (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $175Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $145
Intel Core i5-12400F $110Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $85
Intel Core i5-13600K $235Nvidia RTX 4070 $499Crucial T700 M.2 4TB $342
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback