Intel Core Ultra 7 155H vs Intel Core i7-7820HK

Intel Core Ultra 7 155H $503
Intel Core i7-7820HK $378
16 Cores
22 Threads
1.4GHz Clock
4 Cores
8 Threads
2.9GHz Clock
Socket
BGA 2049
Socket
BGA 1440
iGPU
Arc 8C 2250MHz
4.61 TFLOPS FP32
iGPU
HD 630 1100MHz
420 GFLOPS FP32
CB23S 1,750
67%
CB23S N/A
0%
CB23M 14,775
34%
CB23M N/A
0%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Meteor Lake
Architecture
Skylake
Family
Core Ultra Series 1
Family
Core 7th Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Meteor Lake-H
-
Meteor Lake-P-6P
P-Core
Redwood Cove
-
-
E-Core
Crestmont
Codename
Kaby Lake-H
-
Kaby Lake-4C-GT2
-
-
-
-
-
-
Market Segment
Laptop
Market Segment
Laptop
Release Date
12/14/2023
Release Date
1/3/2017
Foundry
Intel
TSMC (iGPU Die)
TSMC (SoC Die)
TSMC (IO Die)
Foundry
Intel
-
-
-
Node
Intel 4
N5 (iGPU Die)
N6 (SoC Die)
N6 (IO Die)
Node
14nm+
-
-
-
Die Size
68 mm²
44 mm² (iGPU Die)
100 mm² (SoC Die)
28 mm² (IO Die)
Die Size
125 mm²
-
-
-
Transistor Count
10 Billion
-
-
-
Transistor Count
2.1 Billion
-
-
-
16 Cores
6 P-Cores
8 M-Cores
2 E-Cores
4 Cores
-
-
-
22 Threads
12 P-Threads
8 M-Cores
2 E-Threads
8 Threads
-
-
-
P-Core
1.4GHz
4.8GHz Boost
-
-
2.9GHz
3.9GHz Boost
-
M-Core
900MHz
-
-
-
-
E-Core
700MHz
2.5GHz Boost
-
-
-
Overclocking
Locked
-
-
-
Overclocking
Unlocked
-
-
-
Integrated Chipset
-
Type
DMI
-
-
-
-
-
-
-
-
-
-
Transfer Rate
8GT/s
-
-
-
-
-
-
Lanes
4
-
-
Bandwidth
4GB/s
-
-
Bi-directional
8GB/s
L0 Instruction
-
-
L0 Instruction
-
-
L0 Data
-
-
L0 Data
-
-
L1 Instruction
64KB/P-Core
8-way set associative
-
-
64KB/E-Core
8-way set associative
L1 Instruction
32KB/Core
8-way set associative
-
-
-
-
L1 Data
48KB/P-Core
12-way set associative
-
-
32KB/E-Core
8-way set associative
L1 Data
32KB/Core
8-way set associative
-
-
-
-
L2
2048KB/Core
16-way set associative
-
-
-
-
-
-
-
-
4MB Shared (E-Core)
16-way set associative
L2
256KB/Core
4-way set associative
-
-
-
-
-
-
-
-
-
-
L3
-
24MB Shared
-
12-way set associative
-
-
-
-
-
L3
-
8MB Shared
-
16-way set associative
-
-
-
-
-
-
-
-
-
-
-
-
-
Channels
2
Channels
2
Max Memory
96GB
Max Memory
64GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
64Bit
Bus Width
128Bit
Bus Width/Channel
64Bit
Bus Width
128Bit
Clock
3733MHz
Transfer Rate
7466MT/s
Clock
1200MHz
Transfer Rate
2400MT/s
Bandwidth/Channel
59.7GB/s
Bandwidth
119.5GB/s
Bandwidth/Channel
19.2GB/s
Bandwidth
38.4GB/s
TDP
28W
20W cTDP Down
65W cTDP Up
115W Peak
TDP
45W
35W cTDP Down
-
-
Temp
110°C Max
-
Temp
100°C Max
-
Included Cooler
Not Included
Included Cooler
Not Included
PCIe 5.0 x8 Lanes
PCIe 4.0 x20 Lanes
PCIe 3.0 x16 Lanes
Arc 8C 2250MHz
1024 Shaders
2250MHz
4.61 TFLOPS FP32
HD 630 1100MHz
192 Shaders
1100MHz
420 GFLOPS FP32
AI Boost 3
No NPU
-
1.4MHz
2 Cores
-
-
11.5 TOPS INT8
-
-
-
-
-
No Cellular
No Cellular
Change Comparison