Intel Core i9 12900KF vs AMD Ryzen 7 3800XT
We compared two desktop CPUs: Intel Core i9 12900KF with 16 cores 3.2GHz and AMD Ryzen 7 3800XT with 8 cores 3.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 12900KF Advantages
Released 1 years and 3 months late
Higher specification of memory (4800 vs 3200)
Larger memory bandwidth (76.8GB/s vs 47.68GB/s)
Newer PCIe version (5.0 vs 4.0)
AMD Ryzen 7 3800XT Advantages
Higher base frequency (3.9GHz vs 3.2GHz)
Larger L3 cache size (32MB vs 30MB)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (105W vs 125W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 12900KF
+50%
2028
AMD Ryzen 7 3800XT
1351
Cinebench R23 Multi Core
Intel Core i9 12900KF
+111%
27422
AMD Ryzen 7 3800XT
12952
Geekbench 6 Single Core
Intel Core i9 12900KF
+59%
2686
AMD Ryzen 7 3800XT
1679
Geekbench 6 Multi Core
Intel Core i9 12900KF
+154%
16130
AMD Ryzen 7 3800XT
6343
Cinebench 2024 Single Core
Intel Core i9 12900KF
+53%
124
AMD Ryzen 7 3800XT
81
Cinebench 2024 Multi Core
Intel Core i9 12900KF
+113%
1564
AMD Ryzen 7 3800XT
734
Blender
Intel Core i9 12900KF
+132%
425
AMD Ryzen 7 3800XT
183
Geekbench 5 Single Core
Intel Core i9 12900KF
+49%
1970
AMD Ryzen 7 3800XT
1319
Geekbench 5 Multi Core
Intel Core i9 12900KF
+87%
17469
AMD Ryzen 7 3800XT
9327
Passmark CPU Single Core
Intel Core i9 12900KF
+49%
4167
AMD Ryzen 7 3800XT
2793
Passmark CPU Multi Core
Intel Core i9 12900KF
+74%
41190
AMD Ryzen 7 3800XT
23540
General Parameters
Oct 2021
Release Date
Jul 2020
Intel
Manufacturer
AMD
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Alder Lake
Core Architecture
Zen 2
i9-12900KF
Processor Number
-
LGA-1700
Socket
AM4
No
Integrated Graphics
N/A
Package
-
Transistor Count
3.8 billions
10 nm
Manufacturing Process
7 nm
125 W
Power Consumption
105 W
241 W
Max Turbo Power Consumption
-
100°C
Peak Operating Temperature
95 °C
CPU Performance
8
Performance Cores
8
16
Performance Core Threads
16
3.2 GHz
Performance Core Base Frequency
3.9 GHz
5.1 GHz
Performance Core Turbo Frequency
4.7 GHz
8
Efficiency Cores
-
8
Efficiency Core Threads
-
2.4 GHz
Efficiency Core Base Frequency
-
3.9 GHz
Efficiency Core Turbo Frequency
-
16
Total Core Count
8
24
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
32x
Multiplier
39x
64 K per core
L1 Cache
64 K per core
14 MB shared
L2 Cache
512 K per core
30 MB shared
L3 Cache
32 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR5-4800, DDR4-3200
Memory Types
DDR4-3200
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
76.8 GB/s
Max Memory Bandwidth
47.68 GB/s
Yes
ECC Memory Support
No
