Core i7-7660U vs Core i7-8550U

Core i7-7660U
Core i7-8550U
2 Cores
4 Threads
2.5GHz Clock
4 Cores
8 Threads
1.8GHz Clock
Socket
BGA 1356
Socket
BGA 1356
iGPU
Iris Plus 640 1100MHz
iGPU
UHD 620 1150MHz
GB6S 1,300
35%
GB6S 1,200
32%
GB6M 2,500
10%
GB6M 3,800
16%
CB23S - N/A
0%
CB23S - N/A
0%
CB23M - N/A
0%
CB23M - N/A
0%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Skylake
Architecture
Skylake
Family
Core 7th Gen
Family
Core 8th Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Kaby Lake-U
-
Kaby Lake-2C-GT3
-
-
-
-
-
-
Codename
Kaby Lake-R
-
Kaby Lake-R-4C-GT2
-
-
-
-
-
-
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/3/2017
Release Date
8/21/2017
Foundry
Intel
Intel (PCH Die)
Intel (eDRAM Die)
-
Foundry
Intel
-
-
-
Node
14nm+
22nm (PCH Die)
22nm (eDRAM Die)
-
Node
14nm+
-
-
-
Die Size
148 mm²
50 mm² (PCH Die)
42 mm² (eDRAM Die)
-
Die Size
123 mm²
-
-
-
Transistor Count
2.5 Billion
-
-
-
Transistor Count
2.1 Billion
-
-
-
2 Cores
-
-
-
4 Cores
-
-
-
4 Threads
-
-
-
8 Threads
-
-
-
-
2.5GHz
4GHz Boost
-
-
1.8GHz
4GHz Boost
-
-
-
-
-
-
-
-
-
-
-
-
-
Overclocking
Locked
-
-
-
Overclocking
Locked
-
-
-
Type
OPI
Type
OPI
-
-
-
-
-
-
-
-
Transfer Rate
4GT/s
Transfer Rate
4GT/s
-
-
-
-
Lanes
4
Lanes
4
Bandwidth
2GB/s
Bandwidth
2GB/s
Bi-directional
4GB/s
Bi-directional
4GB/s
L0 Instruction
-
-
L0 Instruction
-
-
L0 Data
-
-
L0 Data
-
-
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
L1 Data
32KB/Core
8-way set associative
-
-
-
-
L1 Data
32KB/Core
8-way set associative
-
-
-
-
L2
256KB/Core
4-way set associative
-
-
-
-
-
-
-
-
-
-
L2
256KB/Core
4-way set associative
-
-
-
-
-
-
-
-
-
-
L3
-
4MB Shared
-
16-way set associative
-
-
-
-
-
L3
-
8MB Shared
-
16-way set associative
-
-
-
-
-
L4
64MB Shared
-
-
-
-
-
-
Channels
2
Channels
2
Max Memory
32GB
Max Memory
32GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
64Bit
Bus Width
128Bit
Bus Width/Channel
64Bit
Bus Width
128Bit
Clock
1067MHz
Transfer Rate
2133MT/s
Clock
1067MHz
Transfer Rate
2133MT/s
Bandwidth/Channel
17.1GB/s
Bandwidth
34.1GB/s
Bandwidth/Channel
17.1GB/s
Bandwidth
34.1GB/s
TDP
15W
10W cTDP Down
-
-
TDP
15W
10W cTDP Down
25W cTDP Up
-
Temp
100°C Max
-
Temp
100°C Max
-
Included Cooler
Not Included
Included Cooler
Not Included
PCIe 3.0 x12 Lanes
PCIe 3.0 x12 Lanes
Iris Plus 640 1100MHz
384 Shaders
1100MHz
UHD 620 1150MHz
192 Shaders
1150MHz
No NPU
-
No NPU
-
-
-
-
-
-
-
-
-
-
-
-
-
No Cellular
No Cellular
Change Results