59points

AMD Epyc 7401

90points

AMD Epyc 7742

AMD Epyc 7401
AMD Epyc 7742
Comparison winner
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amd-epyc-7742 2
amd-epyc-7742 3
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30 facts in comparison

AMD Epyc 7401 vs AMD Epyc 7742

AMD Epyc 7401
AMD Epyc 7742

Why is AMD Epyc 7401 better than AMD Epyc 7742?

  • 70W lower TDP
    ?

    155Wvs225W
  • 116.3GB/s more memory bandwidth
    ?

    307GB/svs190.7GB/s

Why is AMD Epyc 7742 better than AMD Epyc 7401?

  • 3x faster CPU speed
    ?

    64 x 2.25GHzvs24 x 2GHz
  • 80 more CPU threads
    ?

    128vs48
  • 534MHz higher ram speed
    ?

    3200MHzvs2666MHz
  • 20MB bigger L2 cache
    ?

    32MBvs12MB
  • 2.84x higher PassMark result
    ?

    66679vs23518
  • 192MB bigger L3 cache
    ?

    256MBvs64MB
  • 0.4GHz higher turbo clock speed
    ?

    3.4GHzvs3GHz
  • 2560KB bigger L1 cache
    ?

    4096KBvs1536KB

Price comparison

AMD Epyc 7401

Buy used:

$875.00

ProductStorePrice
AMD Epyc 7401 AmazonAMD PS7401BEVHCAF EPYC 7401 24-Core 2 GH...AMD PS7401BEVHCAF EPYC 7401 24-Core 2 GHz Processor
Amazon logo
$839.75
AMD Epyc 7401 AmazonAMD 100-100000048WOF EPYC 7402P - Socket...AMD 100-100000048WOF EPYC 7402P - Socket SP3-24 Cores - 2.8 GHz Processor
Amazon logo
$2,230.00
AMD Epyc 7401 AmazonAMD PS735PBEAFWOF EPYC x86 CPU Model 735...AMD PS735PBEAFWOF EPYC x86 CPU Model 7351P (16c/32t 2.4GHz) 16 DDR4 DIMM Slots with up to 2TB RAM and 128 Lanes of PCIe 3
Amazon logo
$1,645.30
AMD Epyc 7401 AmazonAMD PS7601BDAFWOF EPYC x86 CPU Processor...AMD PS7601BDAFWOF EPYC x86 CPU Processor Model 7601 (32c/64t 2.2GHz) 16 DDR4 DIMM Slots with up to 2TB RAM and 128 Lanes of PCIe 3
Amazon logo
$5,538.00
AMD Epyc 7401 AmazonAMD EPYC 7351 PS7351BEVGPAF 2.4GHZ 16C P...AMD EPYC 7351 PS7351BEVGPAF 2.4GHZ 16C PROC
Amazon logo
$500.00
AMD Epyc 7401 AmazonAMD PS7351BEAFWOF EPYC x86 CPU Processor...AMD PS7351BEAFWOF EPYC x86 CPU Processor Model 7351 (16c/32t 2.4GHz) 16 DDR4 DIMM Slots with up to 2TB RAM and 128 Lanes of PCIe 3
Amazon logo
$1,783.00
AMD Epyc 7401 AmazonAMD PS755PBDVIHAF EPYC 7551P 32-Core 2 G...AMD PS755PBDVIHAF EPYC 7551P 32-Core 2 GHz Processor
Amazon logo
$1,166.79
AMD Epyc 7401 AmazonAMD PS7501BEVIHAF EPYC 7501 32 Core 2.00...AMD PS7501BEVIHAF EPYC 7501 32 Core 2.00 GHz Processor OEM
Amazon logo
$3,130.57
AMD Epyc 7401 walmartAMD EPYC 7272 Processor
walmart logo
$630.00

AMD Epyc 7742

ProductStorePrice
AMD Epyc 7742 AmazonAMD EPYC (2nd Gen) 7742 Tetrahexaconta-c...AMD EPYC (2nd Gen) 7742 Tetrahexaconta-core (64 Core) 2.25 GHz Processor - Retail Pack - 256 MB Cache - 3.40 GHz Overclocking Speed - 7 nm - Socket SP3 - 225 W - 128 Threads
Amazon logo
$6,850.00

General info

1.Supports 64-bit
AMD Epyc 7401
AMD Epyc 7742
A 32-bit operating system can only support up to 4GB of RAM. 64-bit allows more than 4GB, giving increased performance. It also allows you to run 64-bit apps.
2.semiconductor size

14nm

14nm

Small semiconductors provide better performance and reduced power consumption. Chipsets with a higher number of transistors, semiconductor components of electronic devices, offer more computational power. A small form factor allows more transistors to fit on a chip, therefore increasing its performance.
3.Thermal Design Power (TDP)

155W

225W

The thermal design power (TDP) is the maximum amount of power the cooling system needs to dissipate. A lower TDP typically means that it consumes less power.
4.PCI Express (PCIe) version

3

4

Peripheral Component Interconnect Express (PCIe) is a high-speed interface standard for connecting components, such as graphics cards and SSDs, to a motherboard. Newer versions can support more bandwidth and deliver better performance.
5.Has integrated graphics
AMD Epyc 7401
AMD Epyc 7742
With integrated graphics you don’t need to buy a separate graphics card.

Performance

1.CPU speed

24 x 2GHz

64 x 2.25GHz

The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.
2.CPU threads

48

128

More threads result in faster performance and better multitasking.
3.L2 cache

12MB

32MB

A larger L2 cache results in faster CPU and system-wide performance.
4.L3 cache

64MB

256MB

A larger L3 cache results in faster CPU and system-wide performance.
5.turbo clock speed

3GHz

3.4GHz

When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
6.L1 cache

1536KB

4096KB

A larger L1 cache results in faster CPU and system-wide performance.

Memory

1.RAM speed

2666MHz

3200MHz

It can support faster memory, which will give quicker system performance.
2.maximum memory bandwidth

307GB/s

190.7GB/s

This is the maximum rate that data can be read from or stored into memory.
3.memory channels

8

8

More memory channels increases the speed of data transfer between the memory and the CPU.
4.maximum memory size

2000GB

4000GB

The maximum amount of memory (RAM) supported.
5.Supports ECC memory
AMD Epyc 7401
AMD Epyc 7742
Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.

Features

1.Has AES
AMD Epyc 7401
AMD Epyc 7742
AES is used to speed up encryption and decryption.
2.Supports hardware-assisted virtualization
AMD Epyc 7401
AMD Epyc 7742
It is easier to obtain better performance when using virtualization if it is hardware-assisted.
3.SSE version

4.2

4.2

SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.
4.Has AVX
AMD Epyc 7401
AMD Epyc 7742
AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.
5.Has MMX
AMD Epyc 7401
AMD Epyc 7742
MMX is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
6.Has F16C
AMD Epyc 7401
AMD Epyc 7742
F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

Benchmarks

1.PassMark result

23518

66679

This benchmark measures the performance of the CPU using multiple threads.
2.PassMark result (single)

1600

2127

This benchmark measures the performance of the CPU using a single thread.

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