AMD Ryzen Threadripper 3990X vs AMD EPYC 7742
CPU · Specs Compare
General Parameters
Release Date
Jan 2020
Aug 2019
Manufacturer
AMD
AMD
Type
Desktop
Server
Instruction Set
x86-64
—
Core Architecture
Zen 2
Rome
Integrated Graphics
N/A
N/A
Generation
—
EPYC (Zen 2 (Rome))
Package
Transistor Count
19.2 billions
3.8 billions
Manufacturing Process
7 nm
7 nm
Socket
sTRX4
AMD Socket SP3
Power Consumption
280 W
225 W
Peak Operating Temperature
95 °C
—
Foundry
—
TSMC
Die Size
—
74 mm²
Package
—
FCLGA-4094
CPU Performance
Performance Cores
64
—
Performance Core Threads
128
—
Performance Core Base Frequency
2.9 GHz
2.25 GHz
Performance Core Turbo Frequency
4.3 GHz
3.4 GHz
Total Core Count
64
64
Total Thread Count
128
128
Bus Frequency
100 MHz
100 MHz
Multiplier
29x
22.5
L1 Cache
96 K per core
96 K per core
L2 Cache
512 K per core
512 K per core
L3 Cache
128 MB shared
256 MB shared
Unlocked Multiplier
Yes
No
SMP
—
2
Memory Parameters
Memory Types
DDR4-3200
DDR4-3200
Max Memory Size
256 GB
—
Max Memory Channels
4
8
Max Memory Bandwidth
95.37 GB/s
—
ECC Memory Support
Yes
Yes
Miscellaneous
PCIe Version
4.0
4
PCIe Lanes
64
—
Benchmark
Cinebench R23
1,262
—
Cinebench R23
75,671
—
Geekbench 6
1,138
404
Geekbench 5
1,265
—
Geekbench 6
11,211
170
Geekbench 5
27,453
—
Passmark CPU
2,564
—
Passmark CPU
80,316
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.