AMD Ryzen 9 3900X vs Intel Core i7 6900K
We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and Intel Core i7 6900K with 8 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD Ryzen 9 3900X Advantages
Released 3 years and 2 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.8GHz vs 3.2GHz)
Larger L3 cache size (64MB vs 20MB)
More modern manufacturing process (7nm vs 14nm)
Lower TDP (105W vs 140W)
Intel Core i7 6900K Advantages
Larger memory bandwidth (76.8GB/s vs 47.68GB/s)
Score
Benchmark
Cinebench R23 Single Core
AMD Ryzen 9 3900X
+13%
1306
Intel Core i7 6900K
1151
Cinebench R23 Multi Core
AMD Ryzen 9 3900X
+62%
18454
Intel Core i7 6900K
11326
Geekbench 6 Single Core
AMD Ryzen 9 3900X
+43%
1842
Intel Core i7 6900K
1286
Geekbench 6 Multi Core
AMD Ryzen 9 3900X
+56%
11715
Intel Core i7 6900K
7470
Geekbench 5 Single Core
AMD Ryzen 9 3900X
+37%
1319
Intel Core i7 6900K
961
Geekbench 5 Multi Core
AMD Ryzen 9 3900X
+63%
11991
Intel Core i7 6900K
7327
Passmark CPU Single Core
AMD Ryzen 9 3900X
+16%
2683
Intel Core i7 6900K
2310
Passmark CPU Multi Core
AMD Ryzen 9 3900X
+128%
32531
Intel Core i7 6900K
14258
General Parameters
Jul 2019
Release Date
May 2016
AMD
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Zen 2
Core Architecture
Broadwell E
-
Processor Number
i7-6900K
AM4
Socket
LGA-2011-3
N/A
Integrated Graphics
N/A
Package
3.8 billions
Transistor Count
-
7 nm
Manufacturing Process
14 nm
105 W
Power Consumption
140 W
95 °C
Peak Operating Temperature
-
CPU Performance
12
Performance Cores
8
24
Performance Core Threads
16
3.8 GHz
Performance Core Base Frequency
3.2 GHz
4.6 GHz
Performance Core Turbo Frequency
3.7 GHz
12
Total Core Count
8
24
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
38x
Multiplier
32x
64 K per core
L1 Cache
64 K per core
512 K per core
L2 Cache
256 K per core
64 MB shared
L3 Cache
20 MB shared
Yes
Unlocked Multiplier
No
Memory Parameters
DDR4-3200
Memory Types
DDR4-2133
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
47.68 GB/s
Max Memory Bandwidth
76.8 GB/s
Yes
ECC Memory Support
No
