Intel Core Ultra 7 255H vs Intel Core i5-11400H

Intel Core Ultra 7 255H $514
Intel Core i5-11400H
16 Cores
16 Threads
2GHz Clock
6 Cores
12 Threads
2.7GHz Clock
Socket
BGA 2049
Socket
BGA 1787
iGPU
Arc 140T 2250MHz
4.61 TFLOPS FP32
iGPU
UHD 16EU 1450MHz Gen 12
370 GFLOPS FP32
CB23S N/A
0%
CB23S 1,415
54%
CB23M N/A
0%
CB23M 9,235
21%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Arrow Lake
Architecture
Tiger Lake
Family
Core Ultra Series 2
Family
Core 11th Gen
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
-
-
Arrow Lake-H-6P-8E
P-Core
Lion Cove
M-Core
Skymont
E-Core
Crestmont
Codename
Tiger Lake-H
-
Tiger Lake-8C
-
Willow Cove
-
-
-
-
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/6/2025
Release Date
5/11/2021
Foundry
TSMC
TSMC (iGPU Die)
TSMC (SoC Die)
TSMC (IO Die)
Foundry
Intel
-
-
-
Node
N3B
N5 (iGPU Die)
N6 (SoC Die)
N6 (IO Die)
Node
10nm SuperFin
-
-
-
Die Size
Unknown
44 mm² (iGPU Die)
100 mm² (SoC Die)
28 mm² (IO Die)
Die Size
190 mm²
-
-
-
Transistor Count
Unknown
-
-
-
Transistor Count
12.4 Billion
-
-
-
16 Cores
6 P-Cores
8 M-Cores
2 E-Cores
6 Cores
-
-
-
16 Threads
6 P-Threads
8 M-Cores
2 E-Threads
12 Threads
-
-
-
P-Core
2GHz
5.1GHz Boost
-
-
2.7GHz
4.5GHz Boost
-
M-Core
1.5GHz
-
-
-
-
E-Core
700MHz
2.5GHz Boost
-
-
-
Overclocking
Locked
-
-
-
Overclocking
Locked
-
-
-
Integrated Chipset
-
Type
DMI
-
-
-
-
-
-
-
-
-
-
Transfer Rate
8GT/s
-
-
-
-
-
-
Lanes
8
-
-
Bandwidth
8GB/s
-
-
Bi-directional
16GB/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
48KB/Core
12-way set associative
-
-
-
-
L2
3072KB/Core
10-way set associative
-
-
-
-
-
-
-
-
8MB Shared (E-Core)
16-way set associative
L2
1280KB/Core
20-way set associative
-
-
-
-
-
-
-
-
-
-
L3
-
18MB Shared
-
12-way set associative
-
-
-
-
-
L3
-
12MB Shared
-
12-way set associative
-
-
-
-
-
-
-
-
-
-
-
-
-
Channels
2
Channels
2
Max Memory
128GB
Max Memory
128GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
64Bit
Bus Width
128Bit
Bus Width/Channel
64Bit
Bus Width
128Bit
Clock
4200MHz
Transfer Rate
8400MT/s
Clock
1600MHz
Transfer Rate
3200MT/s
Bandwidth/Channel
67.2GB/s
Bandwidth
134.4GB/s
Bandwidth/Channel
25.6GB/s
Bandwidth
51.2GB/s
TDP
28W
20W cTDP Down
-
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 4.0 x20 Lanes
Arc 140T 2250MHz
1024 Shaders
2250MHz
4.61 TFLOPS FP32
UHD 16EU 1450MHz Gen 12
128 Shaders
1450MHz
370 GFLOPS FP32
AI Boost 3
GNA 2.0
-
2 Cores
-
-
13 TOPS INT8
-
-
-
-
-
No Cellular
No Cellular
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