Intel Core Ultra 7 255U vs Intel Core Ultra 7 155UL
Intel Core Ultra 7 255U
$490
Intel Core Ultra 7 155UL
$426
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12 Cores
12 Threads
2GHz Clock
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12 Cores
14 Threads
1.7GHz Clock
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Socket
BGA 2049
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Socket
LGA 1851
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iGPU
Graphics 4C 2100MHz
2.15 TFLOPS FP32
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iGPU
Graphics 4C 1950MHz
2 TFLOPS FP32
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GB6S N/A
0%
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GB6S 2,200
54%
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GB6M N/A
0%
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GB6M 9,000
34%
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CB23S N/A
0%
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CB23S N/A
0%
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CB23M N/A
0%
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CB23M N/A
0%
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Manufacturer
Intel
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Manufacturer
Intel
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Architecture
Arrow Lake
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Architecture
Meteor Lake
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Family
Core Ultra Series 2
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Family
Core Ultra Series 1
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Instruction Set (ISA)
x86-64
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Instruction Set (ISA)
x86-64
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Codename
-
-
Arrow Lake-U-2P-8E
P-Core
Lion Cove
M-Core
Skymont
E-Core
Crestmont
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Codename
Meteor Lake-U
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Meteor Lake-M-2P
P-Core
Redwood Cove
-
-
E-Core
Crestmont
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Market Segment
Laptop
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Market Segment
Laptop
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Release Date
1/6/2025
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Release Date
4/8/2024
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Foundry
Intel
TSMC (iGPU Die)
TSMC (SoC Die)
TSMC (IO Die)
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Foundry
Intel
TSMC (iGPU Die)
TSMC (SoC Die)
TSMC (IO Die)
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Node
Intel 3
N5 (iGPU Die)
N6 (SoC Die)
N6 (IO Die)
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Node
Intel 4
N5 (iGPU Die)
N6 (SoC Die)
N6 (IO Die)
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|
Die Size
Unknown
23 mm² (iGPU Die)
100 mm² (SoC Die)
10 mm² (IO Die)
|
Die Size
38 mm²
23 mm² (iGPU Die)
100 mm² (SoC Die)
28 mm² (IO Die)
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|
Transistor Count
Unknown
-
-
-
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Transistor Count
5.5 Billion
-
-
-
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12 Cores
2 P-Cores
8 M-Cores
2 E-Cores
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12 Cores
2 P-Cores
8 M-Cores
2 E-Cores
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|
12 Threads
2 P-Threads
8 M-Cores
2 E-Threads
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14 Threads
4 P-Threads
8 M-Cores
2 E-Threads
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|
P-Core
2GHz
5.2GHz Boost
-
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P-Core
1.7GHz
4.8GHz Boost
-
|
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M-Core
1.7GHz
-
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M-Core
1.2GHz
-
|
|
E-Core
700MHz
2.4GHz Boost
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E-Core
700MHz
2.1GHz Boost
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|
Overclocking
Locked
-
-
-
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Overclocking
Locked
-
-
-
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Integrated Chipset
-
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Integrated Chipset
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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L0 Instruction
-
-
|
L0 Instruction
-
-
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L0 Data
-
-
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L0 Data
-
-
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L1 Instruction
64KB/P-Core
8-way set associative
-
-
64KB/E-Core
8-way set associative
|
L1 Instruction
64KB/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
3072KB/Core
10-way set associative
-
-
-
-
-
-
-
-
8MB Shared (E-Core)
16-way set associative
|
L2
2048KB/Core
16-way set associative
-
-
-
-
-
-
-
-
4MB Shared (E-Core)
16-way set associative
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L3
-
24MB Shared
-
12-way set associative
-
-
-
-
-
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L3
-
12MB Shared
-
12-way set associative
-
-
-
-
-
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-
-
-
-
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-
-
-
-
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Channels
2
|
Channels
2
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Max Memory
128GB
128GB
|
Max Memory
96GB
|
|
ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
4200MHz
3200MHz
Transfer Rate
8400MT/s
6400MT/s
|
Clock
2800MHz
Transfer Rate
5600MT/s
|
|
Bandwidth/Channel
67.2GB/s
51.2GB/s
Bandwidth
134.4GB/s
102.4GB/s
|
Bandwidth/Channel
44.8GB/s
Bandwidth
89.6GB/s
|
|
TDP
15W
12W cTDP Down
-
57W Peak
|
TDP
15W
12W cTDP Down
28W cTDP Up
57W Peak
|
|
Temp
110°C Max
-
|
Temp
105°C Max
-
|
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Included Cooler
Not Included
|
Included Cooler
Not Included
|
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PCIe 4.0 x20 Lanes
|
PCIe 4.0 x20 Lanes
|
|
Graphics 4C 2100MHz
512 Shaders
2100MHz
2.15 TFLOPS FP32
|
Graphics 4C 1950MHz
512 Shaders
1950MHz
2 TFLOPS FP32
|
|
AI Boost 3
|
AI Boost 3
|
|
-
2 Cores
|
1.4MHz
2 Cores
|
|
13 TOPS INT8
|
11.5 TOPS INT8
|
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-
-
|
-
-
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No Cellular
|
No Cellular
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