Core i7-1355U vs Core i7-1255U

Core i7-1355U
Core i7-1255U
10 Cores
12 Threads
1.7GHz Clock
10 Cores
12 Threads
1.7GHz Clock
Socket
BGA 1744
Socket
BGA 1744
iGPU
Iris Xe 96EU 1300MHz
iGPU
Iris Xe 96EU 1250MHz
GB6S 2,250
60%
GB6S 1,955
52%
GB6M 6,800
28%
GB6M 5,900
25%
CB23S 1,800
77%
CB23S 1,655
71%
CB23M 9,275
22%
CB23M 8,285
20%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Raptor Lake
Architecture
Alder Lake
Family
Core 13th Gen
Family
Core 12th Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Raptor Lake-U
-
Raptor Lake-2P-8E
P-Core
Golden Cove
-
-
E-Core
Gracemont
Codename
Alder Lake-U
-
Alder Lake-2P-8E
P-Core
Golden Cove
-
-
E-Core
Gracemont
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/1/2023
Release Date
2/23/2022
Foundry
Intel
Intel (PCH Die)
-
-
Foundry
Intel
Intel (PCH Die)
-
-
Node
Intel 7
14nm (PCH Die)
-
-
Node
Intel 7
14nm (PCH Die)
-
-
Die Size
161 mm²
54 mm² (PCH Die)
-
-
Die Size
161 mm²
54 mm² (PCH Die)
-
-
Transistor Count
11.9 Billion
-
-
-
Transistor Count
11.9 Billion
-
-
-
10 Cores
2 P-Cores
-
8 E-Cores
10 Cores
2 P-Cores
-
8 E-Cores
12 Threads
4 P-Threads
-
8 E-Threads
12 Threads
4 P-Threads
-
8 E-Threads
P-Core
1.7GHz
5GHz Boost
-
P-Core
1.7GHz
4.7GHz Boost
-
-
-
-
-
-
-
E-Core
1.2GHz
3.7GHz Boost
E-Core
1.2GHz
3.5GHz Boost
Overclocking
Locked
-
-
-
Overclocking
Locked
-
-
-
Type
OPI
Type
OPI
-
-
-
-
-
-
-
-
Transfer Rate
4GT/s
Transfer Rate
4GT/s
-
-
-
-
Lanes
8
Lanes
8
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/P-Core
8-way set associative
-
-
64KB/E-Core
8-way set associative
L1 Instruction
32KB/P-Core
8-way set associative
-
-
64KB/E-Core
8-way set associative
L1 Data
48KB/P-Core
12-way set associative
-
-
32KB/E-Core
8-way set associative
L1 Data
48KB/P-Core
12-way set associative
-
-
32KB/E-Core
8-way set associative
L2
1280KB/Core
10-way set associative
-
-
-
-
-
-
-
-
2MB Shared (E-Core)
16-way set associative
L2
1280KB/Core
10-way set associative
-
-
-
-
-
-
-
-
2MB Shared (E-Core)
16-way set associative
L3
-
12MB Shared
-
12-way set associative
-
-
-
-
-
L3
-
12MB Shared
-
12-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
2400MHz
Transfer Rate
6400MT/s
Clock
2400MHz
Transfer Rate
4800MT/s
Bandwidth/Channel
51.2GB/s
Bandwidth
102.4GB/s
Bandwidth/Channel
38.4GB/s
Bandwidth
76.8GB/s
TDP
15W
-
-
55W Peak
TDP
15W
-
-
55W Peak
Temp
100°C Max
-
Temp
100°C Max
-
Included Cooler
Not Included
Included Cooler
Not Included
PCIe 4.0 x16 Lanes
PCIe 3.0 x4 Lanes
PCIe 4.0 x12 Lanes
Iris Xe 96EU 1300MHz
768 Shaders
1300MHz
Iris Xe 96EU 1250MHz
768 Shaders
1250MHz
GNA 3.0
GNA 3.0
-
-
-
-
-
-
-
-
-
-
-
-
No Cellular
No Cellular
Change Results