Intel Core i7 1255U vs AMD Ryzen 9 3900XT
CPU · Specs Compare
General Parameters
Release Date
Feb 2022
Jul 2020
Manufacturer
Intel
AMD
Type
Laptop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Alder Lake
Zen 2 (Matisse)
Processor Number
i7-1255U
—
Integrated Graphics
Iris Xe Graphics (96EU)
No
Package
Manufacturing Process
10 nm
7 nm
Socket
BGA-1744
AM4
Power Consumption
12-15 W
105 W
Max Turbo Power Consumption
55 W
—
Peak Operating Temperature
100°C
95°C
Transistor Count
—
3.8 billions
CPU Performance
Performance Cores
2
12
Performance Core Threads
4
24
Performance Core Base Frequency
1.7 GHz
3.8 GHz
Performance Core Turbo Frequency
4.7 GHz
4.7 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
12
Total Thread Count
12
24
Bus Frequency
100 MHz
100 MHz
Multiplier
17x
38x
L1 Cache
80 K per core
64 K per core
L2 Cache
1280 K per core
512 K per core
L3 Cache
12 MB shared
64 MB shared
Unlocked Multiplier
No
Yes
Memory Parameters
Memory Types
DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267
DDR4-3200
Max Memory Size
64 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
76.8 GB/s
47.68 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
4.0
PCIe Lanes
20
24
Benchmark
Cinebench R23
1,701
1,350
Cinebench R23
8,233
18,437
Geekbench 6
2,248
1,763
Geekbench 5
1,628
1,311
Geekbench 6
7,162
11,025
Geekbench 5
7,372
12,279
Blender
125
261
Passmark CPU
3,308
2,769
Passmark CPU
13,792
32,856
▲ Specs Compare
Data sourced from official specifications and benchmark tests.