AMD Ryzen 9 3900X vs Intel Core i7-6800K

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Ryzen 9 3900X or AMD Ryzen 9 3900X – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The AMD Ryzen 9 3900X features 12 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q3/2019 and belongs to the 3 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 3900X, you'll need a motherboard with a AM4 (PGA 1331) socket.
The Intel Core i7-6800K features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q2/2016 and belongs to the 6 generation of the Intel Core i7 Extreme Edition series.
To use the Intel Core i7-6800K, you'll need a motherboard with a LGA 2011-3 socket.
Desktop / Server Segment Desktop / Server
AMD Ryzen 9 3900X Name Intel Core i7-6800K
AMD Ryzen 9 Family Intel Core i7 Extreme Edition
3 Generation 6
AMD Ryzen 3000 Group Intel Core i 6000
 
 

CPU Cores and Base Frequency

The AMD Ryzen 9 3900X has 12 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the AMD Ryzen 9 3900X is 3.8 GHz
and turbo frequency for one core is 4.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i7-6800K has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i7-6800K is 3.4 GHz
and turbo frequency for one core is 3.6 GHz.
4.6 GHz Turbo Frequency (1 core) 3.6 GHz
Yes Overclocking Yes
normal Core architecture normal
3.8 GHz Frequency 3.4 GHz
24 Threads 12
Yes Hyperthreading Yes
12 CPU Cores 6
12x Cores 6x
 
 

Internal Graphics

The AMD Ryzen 9 3900X does not have integrated graphics.
The Intel Core i7-6800K does not have integrated graphics.
-- GPU frequency --
-- Release date --
-- Direct X --
GPU name
-- Technology --
-- Max. displays --
-- Shaders --
0 bytes Max. GPU Memory 0 bytes
-- Execution units --
-- Generation --
-- GPU (Turbo) --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
-- AVC --
-- VC-1 --
-- VP9 --
-- h265 / HEVC (10 bit) --
-- h264 --
-- VP8 --
-- h265 / HEVC (8 bit) --
-- JPEG --
-- AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 128.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 4
128.0 GB Max. Memory 128.0 GB
pci PCIe pci
Yes AES-NI Yes
Yes ECC No
51.2 GB/s Bandwidth 76.8 GB/s
DDR4-3200 Memory type DDR4-2400
 
 

Thermal Management

The processor has a thermal design power (TDP) of 105 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 140 W watts.
95 °C Tjunction max 100 °C
142 W TDP (PL2) None
105 W TDP (PL1 / PBP) 140 W
 
 

Technical details

The AMD Ryzen 9 3900X is manufactured using a 7 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 64.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-6800K is manufactured using a 14 nm process.
In total, this processor boasts a generous 15.0 MB cache.
Q3/2019 Release date Q2/2016
-- Part Number --
6.0 MB L2-Cache 0 bytes
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
Chiplet Chip design Monolithic
Matisse (Zen 2) Architecture Skylake S
7 nm Technology 14 nm
AM4 (PGA 1331) Socket LGA 2011-3
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
485 $ Release price 628 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
64.0 MB L3-Cache 15.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
32755
32755
Intel Core i7-6800K
6C 12T @ 3.4 GHz
10752
10752

Cinebench R23 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
18165
18165
Intel Core i7-6800K
6C 12T @ 3.4 GHz
6645
6645

V-Ray CPU-Render Benchmark

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
13271
13271
Intel Core i7-6800K
6C 12T @ 3.4 GHz
4855
4855

Geekbench 5, 64bit (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
12454
12454
Intel Core i7-6800K
6C 12T @ 3.4 GHz
6314
6314

Geekbench 6 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
10689
10689
Intel Core i7-6800K
6C 12T @ 3.4 GHz
5960
5960

CPU-Z Benchmark 17 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
8183
8183
Intel Core i7-6800K
6C 12T @ 3.4 GHz
3194
3194

Geekbench 6 (Single-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1714
1714
Intel Core i7-6800K
6C 12T @ 3.4 GHz
1267
1267

Cinebench R23 (Single-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1302
1302
Intel Core i7-6800K
6C 12T @ 3.4 GHz
949
949

Geekbench 5, 64bit (Single-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1300
1300
Intel Core i7-6800K
6C 12T @ 3.4 GHz
1080
1080

AMD Ryzen 9 3900X and Intel Core i7-6800K in leaderboards