Core i5-8400H vs Core i5-8257U
Core i5-8400H
Core i5-8257U
|
4 Cores
8 Threads
2.5GHz Clock
|
4 Cores
8 Threads
1.4GHz Clock
|
|
Socket
BGA 1440
|
Socket
BGA 1528
|
|
iGPU
UHD 630 1050MHz
|
iGPU
Iris Plus 645 1050MHz
|
|
GB6S 1,315
35%
|
GB6S 1,225
32%
|
|
GB6M 3,715
15%
|
GB6M 4,005
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 8th Gen
|
Family
Core 8th Gen
|
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
|
Codename
Coffee Lake-H
-
Coffee Lake-4C-GT2
-
-
-
-
-
-
|
Codename
Coffee Lake-U
-
Coffee Lake-4C-GT3
-
-
-
-
-
-
|
|
Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
4/5/2018
|
Release Date
4/5/2018
|
|
Foundry
Intel
-
-
-
|
Foundry
Intel
Intel (PCH Die)
Intel (eDRAM Die)
-
|
|
Node
14nm++
-
-
-
|
Node
14nm++
14nm (PCH Die)
14nm (eDRAM Die)
-
|
|
Die Size
126 mm²
-
-
-
|
Die Size
148 mm²
37 mm² (PCH Die)
63 mm² (eDRAM Die)
-
|
|
Transistor Count
2.1 Billion
-
-
-
|
Transistor Count
2.5 Billion
-
-
-
|
|
4 Cores
-
-
-
|
4 Cores
-
-
-
|
|
8 Threads
-
-
-
|
8 Threads
-
-
-
|
|
-
2.5GHz
4.2GHz Boost
-
|
-
1.4GHz
3.9GHz Boost
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
Overclocking
Locked
-
-
-
|
Overclocking
Locked
-
-
-
|
|
Type
DMI
|
Type
DMI
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Transfer Rate
8GT/s
|
Transfer Rate
8GT/s
|
|
-
-
|
-
-
|
|
Lanes
4
|
Lanes
4
|
|
Bandwidth
4GB/s
|
Bandwidth
4GB/s
|
|
Bi-directional
8GB/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
-
8MB Shared
-
16-way set associative
-
-
-
-
-
|
L3
-
6MB Shared
-
16-way set associative
-
-
-
-
-
|
|
-
-
-
-
|
L4
128MB Shared
-
-
|
|
Channels
2
|
Channels
2
|
|
Max Memory
64GB
16GB
|
Max Memory
64GB
16GB
|
|
ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
1333MHz
1066MHz
Transfer Rate
2666MT/s
2133MT/s
|
Clock
1333MHz
1066MHz
Transfer Rate
2666MT/s
2133MT/s
|
|
Bandwidth/Channel
21.3GB/s
17.1GB/s
Bandwidth
42.7GB/s
34.1GB/s
|
Bandwidth/Channel
21.3GB/s
17.1GB/s
Bandwidth
42.7GB/s
34.1GB/s
|
|
TDP
45W
35W cTDP Down
-
-
|
TDP
15W
-
-
-
|
|
Temp
100°C Max
-
|
Temp
100°C Max
-
|
|
Included Cooler
Not Included
|
Included Cooler
Not Included
|
|
PCIe 3.0 x16 Lanes
|
PCIe 3.0 x16 Lanes
|
|
UHD 630 1050MHz
192 Shaders
1050MHz
|
Iris Plus 645 1050MHz
384 Shaders
1050MHz
|
|
No NPU
-
|
No NPU
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
No Cellular
|
No Cellular
|
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