Intel Core i7-11700B vs AMD Ryzen 9 3900X

Last updated:

CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-11700B or Intel Core i7-11700B – 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 Intel Core i7-11700B features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q2/2021 and belongs to the 11 generation of the Intel Core i7 series.
To use the Intel Core i7-11700B, you'll need a motherboard with a LGA 1200 socket.
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.
Intel Core i 11000H Group AMD Ryzen 3000
11 Generation 3
Mobile Segment Desktop / Server
Intel Core i7-11700B Name AMD Ryzen 9 3900X
Intel Core i7 Family AMD Ryzen 9
 
 

CPU Cores and Base Frequency

The Intel Core i7-11700B has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i7-11700B is 3.2 GHz
and turbo frequency for one core is 5.3 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
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.
16 Threads 24
8x Cores 12x
8 CPU Cores 12
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking Yes
5.3 GHz Turbo Frequency (1 core) 4.6 GHz
3.2 GHz Frequency 3.8 GHz
4.0 GHz Turbo Frequency (all cores) None
 
 

Internal Graphics

The Intel Core i7-11700B has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-11700B uses the Intel UHD Graphics 750, which has 256 texture shaders
and 32 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The AMD Ryzen 9 3900X does not have integrated graphics.
256 Shaders --
Q1/2021 Release date --
14 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
-- Max. displays --
32 Execution units --
0.35 GHz GPU frequency --
12 Generation --
1.3 GHz GPU (Turbo) --
Intel UHD Graphics 750 GPU name
 
 

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.
Decode VP8 --
Decode VC-1 --
Decode / Encode JPEG --
Decode AV1 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode AVC --
Decode / Encode h264 --
Decode / Encode VP9 --
Decode / Encode h265 / HEVC (10 bit) --
 
 

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.
pci PCIe pci
Yes AES-NI Yes
DDR4-3200 Memory type DDR4-3200
No ECC Yes
128.0 GB Max. Memory 128.0 GB
2 Memory channels 2
51.2 GB/s Bandwidth 51.2 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 65 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 105 W watts.
None TDP (PL2) 142 W
65 W TDP (PL1 / PBP) 105 W
100 °C Tjunction max 95 °C
 
 

Technical details

The Intel Core i7-11700B is manufactured using a 10 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 16.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD Ryzen 9 3900X is manufactured using a 7 nm process.
In total, this processor boasts a generous 64.0 MB cache.
Q2/2021 Release date Q3/2019
VT-x, VT-x EPT, VT-d Virtualization AMD-V, SVM
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4a, SSE4.1, SSE4.2, FMA3, AVX2
10 nm Technology 7 nm
Monolithic Chip design Chiplet
-- Release price 485 $
Tiger Lake H Architecture Matisse (Zen 2)
16.0 MB L3-Cache 64.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
LGA 1200 Socket AM4 (PGA 1331)
4.0 MB L2-Cache 6.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
32755
32755
Intel Core i7-11700B
8C 16T @ 3.2 GHz
22764
22764

Geekbench 5, 64bit (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
12454
12454
Intel Core i7-11700B
8C 16T @ 3.2 GHz
10074
10074

Geekbench 6 (Multi-Core)

AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
10689
10689
Intel Core i7-11700B
8C 16T @ 3.2 GHz
10050
10050

Geekbench 6 (Single-Core)

Intel Core i7-11700B
8C 16T @ 3.2 GHz
2265
2265
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1714
1714

Geekbench 5, 64bit (Single-Core)

Intel Core i7-11700B
8C 16T @ 3.2 GHz
1878
1878
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1300
1300

Cinebench R23 (Single-Core)

Intel Core i7-11700B
8C 16T @ 3.2 GHz
1663
1663
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
1302
1302

Cinebench R20 (Single-Core)

Intel Core i7-11700B
8C 16T @ 3.2 GHz
732
732
AMD Ryzen 9 3900X
12C 24T @ 3.8 GHz
502
502

Intel Core i7-11700B and AMD Ryzen 9 3900X in leaderboards