Intel Core i9-11900KB vs AMD Ryzen 9 5950X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-11900KB or Intel Core i9-11900KB – 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 i9-11900KB 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 i9 series.
To use the Intel Core i9-11900KB, you'll need a motherboard with a BGA 1787 socket.
The AMD Ryzen 9 5950X features 16 processor cores and has the capability to manage 32 threads concurrently.
It was released in Q4/2020 and belongs to the 4 generation of the AMD Ryzen 9 series.
To use the AMD Ryzen 9 5950X, you'll need a motherboard with a AM4 (PGA 1331) socket.
Intel Core i 11000H Group AMD Ryzen 5000
11 Generation 4
Mobile Segment Desktop / Server
Intel Core i9-11900KB Name AMD Ryzen 9 5950X
Intel Core i9 Family AMD Ryzen 9
 
 

CPU Cores and Base Frequency

The Intel Core i9-11900KB has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i9-11900KB is 3.3 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 5950X has 16 CPU cores and can calculate 32 threads in parallel.
The clock frequency of the AMD Ryzen 9 5950X is 3.4 GHz
and turbo frequency for one core is 4.9 GHz.
16 Threads 32
8x Cores 16x
8 CPU Cores 16
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
5.3 GHz Turbo Frequency (1 core) 4.9 GHz
3.3 GHz Frequency 3.4 GHz
4.9 GHz Turbo Frequency (all cores) None
 
 

Internal Graphics

The Intel Core i9-11900KB has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-11900KB uses the Intel UHD Graphics 11th Gen (32 EU), 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 5950X does not have integrated graphics.
256 Shaders --
Q2/2021 Release date --
10 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
-- Max. displays --
32 Execution units --
0.35 GHz GPU frequency --
11 Generation --
1.45 GHz GPU (Turbo) --
Intel UHD Graphics 11th Gen (32 EU) 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 / Encode 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
55 W TDP down None
65 W TDP (PL1 / PBP) 105 W
100 °C Tjunction max 95 °C
 
 

Technical details

The Intel Core i9-11900KB 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 20.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD Ryzen 9 5950X is manufactured using a 7 nm process.
In total, this processor boasts a generous 64.0 MB cache.
Q2/2021 Release date Q4/2020
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
583 $ Release price 799 $
Tiger Lake H Architecture Vermeer (Zen 3)
20.0 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 --
BGA 1787 Socket AM4 (PGA 1331)
4.0 MB L2-Cache 8.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
45910
45910
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
23151
23151

Cinebench R23 (Multi-Core)

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
28577
28577
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
12264
12264

Geekbench 6 (Multi-Core)

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
13214
13214
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
10645
10645

Cinebench R20 (Multi-Core)

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
10428
10428
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
4712
4712

Cinebench R15 (Multi-Core)

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
4569
4569
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
2144
2144

Geekbench 6 (Single-Core)

Intel Core i9-11900KB
8C 16T @ 3.3 GHz
2231
2231
AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
2215
2215

Geekbench 5, 64bit (Single-Core)

Intel Core i9-11900KB
8C 16T @ 3.3 GHz
1878
1878
AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
1759
1759

Cinebench R23 (Single-Core)

Intel Core i9-11900KB
8C 16T @ 3.3 GHz
1663
1663
AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
1644
1644

Cinebench R20 (Single-Core)

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
647
647
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
640
640

Cinebench R15 (Single-Core)

AMD Ryzen 9 5950X
16C 32T @ 3.4 GHz
277
277
Intel Core i9-11900KB
8C 16T @ 3.3 GHz
256
256