Core i7-6660U vs Core i7-6870HQ

Core i7-6660U
Core i7-6870HQ
2 Cores
4 Threads
2.4GHz Clock
4 Cores
8 Threads
2.7GHz Clock
Socket
BGA 1356
Socket
BGA 1440
iGPU
Iris 540 1050MHz
iGPU
Iris Pro 580 1000MHz
GB6S 1,070
28%
GB6S 1,190
32%
GB6M 2,175
9%
GB6M 3,970
17%
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 6th Gen
Family
Core 6th Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Skylake-U
-
Skylake-2C-GT3
-
-
-
-
-
-
Codename
Skylake-H
-
Skylake-4C-GT4
-
-
-
-
-
-
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/24/2016
Release Date
1/24/2016
Foundry
Intel
Intel (PCH Die)
Intel (eDRAM Die)
-
Foundry
Intel
Intel (eDRAM Die)
-
-
Node
14nm
22nm (PCH Die)
22nm (eDRAM Die)
-
Node
14nm
22nm (eDRAM Die)
-
-
Die Size
148 mm²
50 mm² (PCH Die)
42 mm² (eDRAM Die)
-
Die Size
184 mm²
77 mm² (eDRAM Die)
-
-
Transistor Count
2.5 Billion
-
-
-
Transistor Count
3.2 Billion
-
-
-
2 Cores
-
-
-
4 Cores
-
-
-
4 Threads
-
-
-
8 Threads
-
-
-
-
2.4GHz
3.4GHz Boost
-
-
2.7GHz
3.6GHz Boost
-
-
-
-
-
-
-
-
-
-
-
-
-
Overclocking
Locked
-
-
-
Overclocking
Locked
-
-
-
Type
OPI
Type
DMI
-
-
-
-
-
-
-
-
Transfer Rate
4GT/s
Transfer Rate
8GT/s
-
-
-
-
Lanes
4
Lanes
4
Bandwidth
2GB/s
Bandwidth
4GB/s
Bi-directional
4GB/s
Bi-directional
8GB/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
-
-
L4
128MB Shared
-
-
Channels
2
Channels
2
Max Memory
64GB
Max Memory
64GB
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
45W
35W cTDP Down
-
-
Temp
100°C Max
-
Temp
100°C Max
-
Included Cooler
Not Included
Included Cooler
Not Included
PCIe 3.0 x12 Lanes
PCIe 3.0 x16 Lanes
Iris 540 1050MHz
384 Shaders
1050MHz
Iris Pro 580 1000MHz
576 Shaders
1000MHz
No NPU
-
No NPU
-
-
-
-
-
-
-
-
-
-
-
-
-
No Cellular
No Cellular
Change Results