CPUs

Intel Atom C3858 vs AMD Ryzen Threadripper PRO 9945WX Full Specs

12 Cores
12 Threads
2GHz
12 Cores
24 Threads
4.7GHz
TDP
25W
TDP
350W
Bandwidth
38.4GB/s
·
Bandwidth
576GB/s
DDR5
iGPU
0
iGPU
0
Socket
Socket

Atom C3858Atom C3858284
x1
Ryzen Threadripper PRO 9945WXRyzen Threadripper PRO 9945WX-
-

12 Cores
12 Cores
12 Threads
24 Threads

Base Clock
2GHz
Base Clock
4.7GHz
Boost Clock
-
Boost Clock
5.4GHz
Overclocking
Locked
Overclocking
Unlocked

L1i
32KB
L1i
32KB
L1d
24KB
L1d
48KB
L2
12MB shared
L2
1MB
L3
-
L3
64MB

Type
·
Type
DDR5
Max Memory
256GB
Max Memory
6.14TB
ECC
Yes
ECC
Yes
Channels
2
Channels
12
Bus Width
128-bit
Bus Width
768-bit
Speed
2400MT/s
Speed
6000MT/s
Bandwidth
38.4GB/s
Bandwidth
576GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
38.4GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
576GB/s

TDP
25W
TDP
350W
Max Operating Temp
-
Max Operating Temp
95°C Max
T-Case
83°C Max
T-Case
-
Included Cooler
-
Included Cooler
0

Bus Type
-
Bus Type
PCIe
Bus Config
-
Bus Config
8 lanes
Bus Speed
-
Bus Speed
32GT/s
Bus Bandwidth
-
Bus Bandwidth
32GB/s

PCIe
PCIe 3.0 x16
15.8GB/sBandwidth
PCIe
PCIe 5.0 x128
504.1GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Atom 2016 branding
Branding
Threadripper PRO 2017 branding
Codename
Denverton
-
-
Codename
Shimada Peak
EldoraDie
Shimada Peak 2CCDVariant
Market Segment
Server
Market Segment
Server
Release Date
Aug 1, 2017
Release Date
May 20, 2025

Foundry
Intel
Foundry
TSMC
Other Foundries
-
Other Foundries
TSMCIO
Fabrication Node
14nm
-
Fabrication Node
N4X
N6IO
Die Size
-
Die Size
141mm²
388mm²IO
Transistor Count
-
Transistor Count
16.6 Billion
11 BillionIO
Transistor Density
-
Transistor Density
118 MTr/mm²
28 MTr/mm²IO

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