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Differences
Top features of AMD Epyc 7281
-
Higher clock speed2.20 GHz
1.90 GHz
Around -16% better clock speed
Top features of AMD EPYC Embedded 3351
-
Performance per watt80 W
170 W
About 0.47 times less performance per watt
Specifications
Complete list of technical specificationsCPU generation and family
Let's find out which one of AMD Epyc 7281 and AMD EPYC Embedded 3351 is of a more recent generation, and what segment it belongs to.
| Specification | Value |
|---|---|
| Name |
AMD Epyc 7281
AMD EPYC Embedded 3351
|
| Segment |
Desktop / Server
Desktop / Server
|
| Family |
AMD Epyc
AMD EPYC
|
| Generation |
1
1
|
| CPU group |
AMD Epyc 7001
AMD EPYC Embedded 3000
|
CPU Cores and Base Frequency
In this block we are going to compare AMD Epyc 7281 vs AMD EPYC Embedded 3351 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.
| Specification | Value |
|---|---|
| Frequency |
2.20 GHz
1.90 GHz
|
| Overclocking |
No
Yes
|
| Core architecture |
normal
normal
|
Internal Graphics
Common specifications for integrated graphics cards in AMD Epyc 7281 and AMD EPYC Embedded 3351 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.
| Specification | Value |
|---|---|
| GPU name |
no iGPU
no iGPU
|
| GPU (Turbo) |
No turbo
No turbo
|
Hardware codec support
Let's compare the support of video codecs between AMD Epyc 7281 and AMD EPYC Embedded 3351. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.
| Specification | Value |
|---|---|
| h265 / HEVC (8 bit) |
No
No
|
| h265 / HEVC (10 bit) |
No
No
|
| h264 |
No
No
|
| VP9 |
No
No
|
| VP8 |
No
No
|
| AV1 |
No
No
|
| AVC |
No
No
|
| VC-1 |
No
No
|
| JPEG |
No
No
|
Memory & PCIe
To choose the best model between AMD Epyc 7281 and AMD EPYC Embedded 3351 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.
| Specification | Value |
|---|---|
| Memory type |
DDR4-2666
DDR4-2666
|
| Max. Memory |
1024 GB
|
| ECC |
Yes
Yes
|
| Memory channels |
8
4 (Quad Channel)
|
Thermal Management
Let's find out what TDP value would be better for AMD Epyc 7281 or AMD EPYC Embedded 3351? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.
| Specification | Value |
|---|---|
| TDP (PL1) |
170 W
80 W
|
| TDP down |
--
60 W
|
| Tjunction max. |
--
105 \xc2\xb0C
|
Technical details
Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Epyc 7281 and AMD EPYC Embedded 3351 CPUs along with a list of ISA extensions.
| Specification | Value |
|---|---|
| Instruction set (ISA) |
x86-64 (64 bit)
x86-64 (64 bit)
|
| Virtualization |
AMD-V, SVM
AMD-V, SVM
|
| ISA extensions |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
|
| L2-Cache |
--
6.00 MB
|
| L3-Cache |
32.00 MB
32.00 MB
|
| Architecture |
Naples (Zen)
Snowy Owl (Zen)
|
| Technology |
14 nm
14 nm
|
| Socket |
SP3
SP4
|
| Release date |
Q3/2017
Q1/2018
|
