Core i7-1255U vs Ryzen 7 7840H
Core i7-1255U
Ryzen 7 7840H
|
10 Cores
12 Threads
1.7GHz Clock
|
8 Cores
16 Threads
3.8GHz Clock
|
|
Socket
BGA 1744
|
Socket
FP8
|
|
iGPU
Iris Xe 96EU 1250MHz
|
iGPU
Radeon 780M 2700MHz
|
|
GB6S 1,955
52%
|
GB6S 2,380
63%
|
|
GB6M 5,900
25%
|
GB6M 11,100
46%
|
|
CB23S 1,655
71%
|
CB23S - N/A
0%
|
|
CB23M 8,285
20%
|
CB23M - N/A
0%
|
|
Manufacturer
Intel
|
Manufacturer
AMD
|
|
Architecture
Alder Lake
|
Architecture
Zen 4
|
|
Family
Core 12th Gen
|
Family
Ryzen 7000
|
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
|
Codename
Alder Lake-U
-
Alder Lake-2P-8E
P-Core
Golden Cove
-
-
E-Core
Gracemont
|
Codename
Phoenix
-
-
-
-
-
-
-
-
|
|
Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
2/23/2022
|
Release Date
1/3/2023
|
|
Foundry
Intel
Intel (PCH Die)
-
-
|
Foundry
TSMC
-
-
-
|
|
Node
Intel 7
14nm (PCH Die)
-
-
|
Node
N4
-
-
-
|
|
Die Size
161 mm²
54 mm² (PCH Die)
-
-
|
Die Size
178 mm²
-
-
-
|
|
Transistor Count
11.9 Billion
-
-
-
|
Transistor Count
25 Billion
-
-
-
|
|
10 Cores
2 P-Cores
-
8 E-Cores
|
8 Cores
-
-
-
|
|
12 Threads
4 P-Threads
-
8 E-Threads
|
16 Threads
-
-
-
|
|
P-Core
1.7GHz
4.7GHz Boost
-
|
-
3.8GHz
5.1GHz Boost
-
|
|
-
-
-
|
-
-
-
|
|
E-Core
1.2GHz
3.5GHz Boost
|
-
-
-
|
|
Overclocking
Locked
-
-
-
|
Overclocking
Locked
-
-
-
|
|
Type
OPI
|
Type
PCIe
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Transfer Rate
4GT/s
|
Transfer Rate
16GT/s
|
|
-
-
|
-
-
|
|
Lanes
8
|
Lanes
4
|
|
Bandwidth
4GB/s
|
Bandwidth
8GB/s
|
|
Bi-directional
8GB/s
|
Bi-directional
16GB/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/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
1280KB/Core
10-way set associative
-
-
-
-
-
-
-
-
2MB Shared (E-Core)
16-way set associative
|
L2
1024KB/Core
8-way set associative
-
-
-
-
-
-
-
-
-
-
|
|
L3
-
12MB Shared
-
12-way set associative
-
-
-
-
-
|
L3
-
16MB Shared
-
16-way set associative
-
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
|
Channels
2
|
Channels
2
|
|
Max Memory
64GB
64GB
64GB
32GB
|
Max Memory
256GB
64GB
|
|
ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
2400MHz
1600MHz
2600MHz
2133MHz
Transfer Rate
4800MT/s
3200MT/s
5200MT/s
4266MT/s
|
Clock
3750MHz
2800MHz
Transfer Rate
7500MT/s
5600MT/s
|
|
Bandwidth/Channel
38.4GB/s
25.6GB/s
41.6GB/s
34.1GB/s
Bandwidth
76.8GB/s
51.2GB/s
83.2GB/s
68.3GB/s
|
Bandwidth/Channel
60.0GB/s
44.8GB/s
Bandwidth
120.0GB/s
89.6GB/s
|
|
TDP
15W
-
-
55W Peak
|
TDP
45W
35W cTDP Down
54W cTDP Up
-
|
|
Temp
100°C Max
-
|
Temp
100°C Max
-
|
|
Included Cooler
Not Included
|
Included Cooler
Not Included
|
|
PCIe 4.0 x12 Lanes
|
PCIe 4.0 x20 Lanes
|
|
Iris Xe 96EU 1250MHz
768 Shaders
1250MHz
|
Radeon 780M 2700MHz
768 Shaders
2700MHz
|
|
GNA 3.0
|
Ryzen AI
|
|
-
-
|
-
-
|
|
-
-
|
10 TOPS
-
|
|
-
-
|
-
-
|
|
No Cellular
|
No Cellular
|
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