AMD Ryzen 9 3900XT vs Intel Core i9 12900K
CPU · Specs Compare
General Parameters
Release Date
Jul 2020
Oct 2021
Manufacturer
AMD
Intel
Type
Desktop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 2 (Matisse)
Alder Lake
Integrated Graphics
No
UHD Graphics 770
Processor Number
—
i9-12900K
Package
Transistor Count
3.8 billions
—
Manufacturing Process
7 nm
10 nm
Socket
AM4
LGA-1700
Power Consumption
105 W
125 W
Peak Operating Temperature
95°C
100°C
CPU Performance
Performance Cores
12
8
Performance Core Threads
24
16
Performance Core Base Frequency
3.8 GHz
3,2 GHz
Performance Core Turbo Frequency
4.7 GHz
5.1 GHz
Total Core Count
12
16
Total Thread Count
24
24
Bus Frequency
100 MHz
100 MHz
Multiplier
38x
32x
L1 Cache
64 K per core
64 K per core
L2 Cache
512 K per core
14 MB shared
L3 Cache
64 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
Efficiency Cores
—
8
Efficiency Core Threads
—
8
Efficiency Core Base Frequency
—
2.4 GHz
Efficiency Core Turbo Frequency
—
3.9 GHz
Memory Parameters
Memory Types
DDR4-3200
DDR5-4800, DDR4-3200
Max Memory Size
128 GB
128 GB
Max Memory Channels
2
2
Max Memory Bandwidth
47.68 GB/s
76.8 GB/s
ECC Memory Support
Yes
Yes
Miscellaneous
PCIe Version
4.0
5.0
PCIe Lanes
24
20
Graphics Card Parameters
Integrated Graphics
—
true
GPU Base Frequency
—
300 MHz
GPU Max Dynamic Frequency
—
1550 MHz
Shader Units
—
256
Texture Units
—
16
Raster Operation Units
—
8
Execution Units
—
32
Power Consumption
—
15 W
Benchmark
Cinebench R23
1,350
2,028
Cinebench R23
18,437
27,422
Geekbench 6
1,763
2,631
Geekbench 5
1,311
—
Geekbench 6
11,025
17,004
Geekbench 5
12,279
—
Blender
261
422
Passmark CPU
2,769
—
Passmark CPU
32,856
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.