Intel Core i7 1255U vs Intel Xeon 678X
CPU · Specs Compare
General Parameters
Release Date
Feb 2022
Feb 2026
Manufacturer
Intel
Intel
Type
Laptop
Server
Instruction Set
x86-64
—
Core Architecture
Alder Lake
Granite Rapids
Processor Number
i7-1255U
—
Integrated Graphics
Iris Xe Graphics (96EU)
N/A
Generation
—
Xeon 600 (Granite Rapids-WS)
Series
—
Intel Xeon 6 processors
Package
Manufacturing Process
10 nm
5 nm
Socket
BGA-1744
Intel Socket 4710
Power Consumption
12-15 W
300 W
Max Turbo Power Consumption
55 W
—
Peak Operating Temperature
100°C
98°C
Foundry
—
Intel
Die Size
—
2x598 mm²
I/O Process Size
—
10 nm
I/O Die Size
—
2x 241
Package
—
FC-LGA18N
CPU Performance
Performance Cores
2
48
Performance Core Threads
4
96
Performance Core Base Frequency
1.7 GHz
2.4 GHz
Performance Core Turbo Frequency
4.7 GHz
4.9 GHz
Efficiency Cores
8
—
Efficiency Core Threads
8
—
Efficiency Core Base Frequency
1.2 GHz
—
Efficiency Core Turbo Frequency
3.5 GHz
—
Total Core Count
10
48
Total Thread Count
12
96
Bus Frequency
100 MHz
100 MHz
Multiplier
17x
24.0
L1 Cache
80 K per core
112 KB per core
L2 Cache
1280 K per core
2 MB per core
L3 Cache
12 MB shared
192 MB shared
Unlocked Multiplier
No
Yes
SMP
—
1
Memory Parameters
Memory Types
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
DDR5-6400
Max Memory Size
64 GB
4 TB
Max Memory Channels
2
8
Max Memory Bandwidth
76.8 GB/s
409.6 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
—
GPU Base Frequency
300 MHz
—
GPU Max Dynamic Frequency
1250 MHz
—
Shader Units
768
—
Texture Units
48
—
Raster Operation Units
24
—
Execution Units
96
—
Power Consumption
15 W
—
Miscellaneous
PCIe Version
4.0
5
PCIe Lanes
20
128
Benchmark
Cinebench R23
1,701
—
Cinebench R23
8,233
—
Geekbench 6
2,248
2,986
Geekbench 5
1,628
—
Geekbench 6
7,162
34,711
Geekbench 5
7,372
—
Blender
125
—
Passmark CPU
3,308
—
Passmark CPU
13,792
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.