Intel Atom C3858 vs Intel Core i9-11900T

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Atom C3858 or Intel Atom C3858 – 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 Atom C3858 features 12 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q3/2017 and belongs to the 5 generation of the Intel Atom series.
To use the Intel Atom C3858, you'll need a motherboard with a BGA 1310 socket.
The Intel Core i9-11900T features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q1/2021 and belongs to the 11 generation of the Intel Core i9 series.
To use the Intel Core i9-11900T, you'll need a motherboard with a LGA 1200 socket.
Intel Atom C3858 Name Intel Core i9-11900T
5 Generation 11
Desktop / Server Segment Desktop / Server
Intel Atom Family Intel Core i9
Intel Atom C3000 Group Intel Core i 11000
 
 

CPU Cores and Base Frequency

The Intel Atom C3858 has 12 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Atom C3858 is 2.0 GHz
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i9-11900T has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i9-11900T is 1.5 GHz
and turbo frequency for one core is 4.9 GHz.
None None 4.9 GHz
No Hyperthreading Yes
2.0 GHz Frequency 1.5 GHz
12 Threads 16
None None 3.6 GHz
12x Cores 8x
No Overclocking No
normal Core architecture normal
12 CPU Cores 8
 
 

Internal Graphics

The Intel Atom C3858 does not have integrated graphics.
The Intel Core i9-11900T has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-11900T 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.
-- Execution units 32
GPU name Intel UHD Graphics 750
-- Direct X 12
-- GPU frequency 0.35 GHz
0 bytes Max. GPU Memory 64.0 GB
-- GPU (Turbo) 1.3 GHz
-- Generation 12
-- Release date Q1/2021
-- Max. displays --
-- Technology 14 nm
-- Shaders 256
 
 

Artificial Intelligence and Machine Learning

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

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

Memory & PCIe

The processor supports a maximum memory capacity of 256.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 38.4 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 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
2 Memory channels 2
DDR4-2400 Memory type DDR4-3200
256.0 GB Max. Memory 128.0 GB
Yes ECC No
38.4 GB/s Bandwidth 51.2 GB/s
Yes AES-NI Yes
 
 

Thermal Management

The processor has a thermal design power (TDP) of 25 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 35 W watts.
25 W TDP (PL1 / PBP) 35 W
100 °C Tjunction max 100 °C
None TDP down 25 W
 
 

Technical details

The Intel Atom C3858 is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i9-11900T is manufactured using a 14 nm process.
In total, this processor boasts a generous 16.0 MB cache.
12.0 MB L2-Cache 4.0 MB
Windows 10, Linux Operating systems Windows 10, Linux, Windows 11
-- Part Number --
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
0 bytes L3-Cache 16.0 MB
Denverton Architecture Rocket Lake S
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
332 $ Release price 439 $
Technical data sheet Documents Technical data sheet
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
Monolithic Chip design Monolithic
Q3/2017 Release date Q1/2021
BGA 1310 Socket LGA 1200
14 nm Technology 14 nm