Intel Core Ultra 7 255HX vs Intel Core Ultra 7 256V

Intel Core Ultra 7 255HX $507
Intel Core Ultra 7 256V
20 Cores
20 Threads
2.4GHz Clock
8 Cores
8 Threads
4.8GHz Clock
Socket
BGA 2114
Socket
BGA 2833
iGPU
Graphics 4C 1850MHz
1.89 TFLOPS FP32
iGPU
Arc 140V 1950MHz
3.99 TFLOPS FP32
  • 25% slower vs Core Ultra 7 256V
  • 33% faster vs Core Ultra 7 255HX
Core Ultra 7 255HX - 102.4GB/s
x1
Core Ultra 7 256V - 136.5GB/s
x1.33
  • 224% higher vs Core Ultra 7 256V
  • 69% lower vs Core Ultra 7 255HX
Core Ultra 7 255HX - 55W
x3.24
Core Ultra 7 256V - 17W
x1
  • 53% slower vs Core Ultra 7 256V
  • 2.11x faster vs Core Ultra 7 255HX
Core Ultra 7 255HX - 1.89 TFLOPS FP32
x1
Core Ultra 7 256V - 3.99 TFLOPS FP32
x2.11
  • 72% slower vs Core Ultra 7 256V
  • 3.62x faster vs Core Ultra 7 255HX
Core Ultra 7 255HX - 13 TOPS INT8
x1
Core Ultra 7 256V - 47 TOPS INT8
x3.62
GB6S N/A
0%
GB6S 2,720
67%
GB6M N/A
0%
GB6M 10,400
39%
Manufacturer
Intel
Manufacturer
Intel
Architecture
Arrow Lake
Architecture
Lunar Lake
Family
Core Ultra Series 2
Family
Core Ultra Series 2
Instruction Set (ISA)
x86-64
Instruction Set (ISA)
x86-64
Codename
Arrow Lake-S-8P-16E
P-Core
Lion Cove
E-Core
Skymont
Codename
Lunar Lake-MX
P-Core
Lion Cove
E-Core
Skymont
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/6/2025
Release Date
9/3/2024
Foundry
TSMC
TSMC (iGPU Die)
TSMC (SoC Die)
TSMC (IO Die)
Foundry
TSMC
TSMC (IO Die)
Intel (FIB Die)
-
Node
N3B
N5 (iGPU Die)
N6 (SoC Die)
N6 (IO Die)
Node
N3B
N6 (IO Die)
22nm (FIB Die)
-
Die Size
135 mm²
23 mm² (iGPU Die)
100 mm² (SoC Die)
28 mm² (IO Die)
Die Size
140 mm²
46 mm² (IO Die)
-
-
Transistor Count
Unknown
Transistor Count
Unknown
20 Cores
8 P-Cores
12 E-Cores
8 Cores
4 P-Cores
4 E-Cores
20 Threads
8 P-Threads
12 E-Threads
8 Threads
4 P-Threads
4 E-Threads
P-Core
2.4GHz
5.2GHz Boost
P-Core
4.8GHz
-
E-Core
1.8GHz
4.5GHz Boost
E-Core
3.7GHz
-
Overclocking
Unlocked
Overclocking
Locked
Type
DMI
Integrated Chipset
-
Transfer Rate
16GT/s
-
-
Lanes
8
-
-
Bandwidth
16GB/s
-
-
Bi-directional
32GB/s
-
-
L0 Instruction
-
-
L0 Instruction
64KB/Core
8-way set associative
L0 Data
-
-
L0 Data
48KB/Core
12-way set associative
L1 Instruction
64KB/P-Core
8-way set associative
64KB/E-Core
8-way set associative
L1 Instruction
-
-
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
192KB/P-Core
12-way set associative
32KB/E-Core
8-way set associative
L2
3072KB/Core
10-way set associative
12MB Shared (E-Core)
16-way set associative
L2
2560KB/Core
10-way set associative
4MB Shared (E-Core)
16-way set associative
L3
30MB Shared
12-way set associative
L3
12MB Shared
12-way set associative
Channels
2
Channels
2
Max Memory
192GB
Max Memory
16GB
ECC
Not Supported
ECC
Not Supported
Bus Width/Channel
64Bit
Bus Width
128Bit
Bus Width/Channel
64Bit
Bus Width
128Bit
Clock
3200MHz
Transfer Rate
6400MT/s
Clock
4267MHz
Transfer Rate
8533MT/s
Bandwidth/Channel
51.2GB/s
Bandwidth
102.4GB/s
Bandwidth/Channel
68.3GB/s
Bandwidth
136.5GB/s
TDP
55W
45W cTDP Down
160W Peak
TDP
17W
8W cTDP Down
37W Peak
Temp
105°C Max
Temp
100°C Max
PCIe 5.0 x20 Lanes
PCIe 4.0 x4 Lanes
PCIe 5.0 x4 Lanes
PCIe 4.0 x4 Lanes
Graphics 4C 1850MHz
512 Shaders
1850MHz
1.89 TFLOPS FP32
Arc 140V 1950MHz
1024 Shaders
1950MHz
3.99 TFLOPS FP32
AI Boost 3
AI Boost 4
2 Cores
6 Cores
13 TOPS INT8
47 TOPS INT8
No Cellular
No Cellular
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