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Intel Core i7-7740X vs Intel Core i7-7800X vs Intel Core i9-9900K vs Intel Core 2 Q9550

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Brand
Intel
Brand
Intel
Brand
Intel
Brand
Intel
Model
BX80677I77740X
Model
BX80673I77800X
Model
BX80684I99900K
Model
BX80569Q9550
Release Date
📅 June 2017
Release Date
📅 June 2017
Release Date
📅 October 2018
Release Date
📅 June 2016
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★☆☆
(9 reviews)
User reviews
★★★★☆
(16 reviews)
User reviews
★★★★★
(123 reviews)
User reviews
★★★★★
(125 reviews)
CPU Single-Core Performance (Charts)
n/a
CPU Single-Core Performance (Charts)
194th / 529
CPU Single-Core Performance (Charts)
95th / 529
CPU Single-Core Performance (Charts)
n/a
Single-Core Effective Value
-
Single-Core Effective Value
196th / 238
Single-Core Effective Value
197th / 238
Single-Core Effective Value
-
Workstation Performance (Charts)
n/a
Workstation Performance (Charts)
148th / 240
Workstation Performance (Charts)
99th / 240
Workstation Performance (Charts)
n/a
Workstation Effective Value
-
Workstation Effective Value
163rd / 234
Workstation Effective Value
142nd / 234
Workstation Effective Value
-
TDP
🔌 112 Watts
TDP
🔌 140 Watts
TDP
🔌 95 Watts
TDP
🔌 65 Watts
Price history
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Price history
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Price history
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Price history
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Supported PC parts
Supported PC parts
Supported PC parts
Supported PC parts
Series
Core i7 X-Series
Series
Core i7 X-Series
Series
Core i9 9th Gen
Series
Core 2 Quad
Core Name
Kaby Lake X
Core Name
Skylake X
Core Name
Coffee Lake
Core Name
Yorkfield
Socket
LGA2066
Socket
LGA2066
Socket
LGA1151
Socket
LGA775
Integrated Graphics
None
Integrated Graphics
None
Integrated Graphics
Intel UHD Graphics 630
Integrated Graphics
None
CPU Cores
4
CPU Cores
6
CPU Cores
8
CPU Cores
4
CPU Threads
8
CPU Threads
12
CPU Threads
16
CPU Threads
4
CPU Clock Rate
4300 MHz
CPU Clock Rate
3500 MHz
CPU Clock Rate
3600 MHz
CPU Clock Rate
2830 MHz
CPU Turbo Clock Rate
4500 MHz
CPU Turbo Clock Rate
4000 MHz
CPU Turbo Clock Rate
5000 MHz
CPU Turbo Clock Rate
-
CPU Cooler included
No
CPU Cooler included
No
CPU Cooler included
No
CPU Cooler included
Yes
Manufacturing Process
14 nm
Manufacturing Process
14 nm
Manufacturing Process
14 nm
Manufacturing Process
45 nm
Maximum Supported Memory
64 GB
Maximum Supported Memory
128 GB
Maximum Supported Memory
128 GB
Maximum Supported Memory
-
Cache L3
8 MB
Cache L3
8.25 MB
Cache L3
16 MB
Cache L3
-
-

What are the differences between Intel Core i7-7740X and Intel Core i7-7800X and Intel Core i9-9900K and Intel Core 2 Q9550? Analyze head-to-head all specifications and features to find out the better cpu.
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