AMD EPYC 7742 vs AMD Ryzen Threadripper 3990X

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD EPYC 7742 or AMD EPYC 7742 – 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 AMD EPYC 7742 features 64 processor cores and has the capability to manage 128 threads concurrently.
It was released in Q3/2019 and belongs to the 2 generation of the AMD EPYC series.
To use the AMD EPYC 7742, you'll need a motherboard with a SP3 socket.
The AMD Ryzen Threadripper 3990X features 64 processor cores and has the capability to manage 128 threads concurrently.
It was released in Q1/2020 and belongs to the 3 generation of the AMD Ryzen Threadripper series.
To use the AMD Ryzen Threadripper 3990X, you'll need a motherboard with a TRX4 (sTRX4) socket.
Desktop / Server Segment Desktop / Server
AMD EPYC 7742 Name AMD Ryzen Threadripper 3990X
AMD EPYC Family AMD Ryzen Threadripper
2 Generation 3
AMD EPYC 7002 Group AMD Ryzen Threadripper 3000
 
 

CPU Cores and Base Frequency

The AMD EPYC 7742 has 64 CPU cores and can calculate 128 threads in parallel.
The clock frequency of the AMD EPYC 7742 is 2.25 GHz
and turbo frequency for one core is 3.4 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The AMD Ryzen Threadripper 3990X has 64 CPU cores and can calculate 128 threads in parallel.
The clock frequency of the AMD Ryzen Threadripper 3990X is 2.9 GHz
and turbo frequency for one core is 4.3 GHz.
3.4 GHz Turbo Frequency (1 core) 4.3 GHz
No Overclocking Yes
normal Core architecture normal
2.25 GHz Frequency 2.9 GHz
128 Threads 128
Yes Hyperthreading Yes
64 CPU Cores 64
64x Cores 64x
 
 

Internal Graphics

The AMD EPYC 7742 does not have integrated graphics.
The AMD Ryzen Threadripper 3990X does not have integrated graphics.
-- GPU frequency --
-- Release date --
-- Direct X --
GPU name
-- Technology --
-- Max. displays --
-- Shaders --
0 bytes Max. GPU Memory 0 bytes
-- Execution units --
-- Generation --
-- GPU (Turbo) --
 
 

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

Memory & PCIe

The processor supports a maximum memory capacity of 2.0 TB distributed across 4 memory channels. It offers a peak memory bandwidth of 102.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
8 Memory channels 4
0 bytes Max. Memory 2.0 TB
pci PCIe pci
Yes AES-NI Yes
Yes ECC Yes
204.8 GB/s Bandwidth 102.4 GB/s
DDR4-3200 Memory type DDR4-3200
 
 

Thermal Management

The processor has a thermal design power (TDP) of 225 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 280 W watts.
-- Tjunction max 95 °C
225 W TDP (PL1 / PBP) 280 W
 
 

Technical details

The AMD EPYC 7742 is manufactured using a 7 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 256.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD Ryzen Threadripper 3990X is manufactured using a 7 nm process.
Q3/2019 Release date Q1/2020
-- Part Number --
0 bytes L2-Cache 32.0 MB
AMD-V, SVM Virtualization AMD-V, SVM
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4a, SSE4.1, SSE4.2, FMA3, AVX2
Chiplet Chip design Chiplet
Rome (Zen 2) Architecture Castle Peak (Zen 2)
7 nm Technology 7 nm
SP3 Socket TRX4 (sTRX4)
Windows 10, Linux Operating systems Windows 10, Linux, Windows 11
9000 $ Release price 3990 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
256.0 MB L3-Cache 256.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
81100
81100
AMD EPYC 7742
64C 128T @ 2.25 GHz
65631
65631

Geekbench 5, 64bit (Multi-Core)

AMD EPYC 7742
64C 128T @ 2.25 GHz
37515
37515
AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
34670
34670

Cinebench R20 (Multi-Core)

AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
24763
24763
AMD EPYC 7742
64C 128T @ 2.25 GHz
20644
20644

Geekbench 6 (Multi-Core)

AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
15832
15832
AMD EPYC 7742
64C 128T @ 2.25 GHz
13647
13647

Geekbench 6 (Single-Core)

AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
1639
1639
AMD EPYC 7742
64C 128T @ 2.25 GHz
1278
1278

Geekbench 5, 64bit (Single-Core)

AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
1219
1219
AMD EPYC 7742
64C 128T @ 2.25 GHz
1050
1050

Cinebench R20 (Single-Core)

AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
495
495
AMD EPYC 7742
64C 128T @ 2.25 GHz
398
398

Monero Hashrate kH/s

AMD EPYC 7742
64C 128T @ 2.25 GHz
92
92
AMD Ryzen Threadripper 3990X
64C 128T @ 2.9 GHz
59
59