CPU comparison with benchmarks
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CPU lineage |
Qualcomm Snapdragon 821 or Qualcomm Snapdragon 821 – 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 Embedded 3451 features 16 processor cores and has the capability to manage 32 threads concurrently. It was released in Q1/2018 and belongs to the 1 generation of the AMD EPYC series. To use the AMD EPYC Embedded 3451, you'll need a motherboard with a SP4 socket.
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Group |
AMD EPYC Embedded 3000 |
| -- |
Generation |
1 |
| -- |
Segment |
Desktop / Server |
| Qualcomm Snapdragon 821 |
Name |
AMD EPYC Embedded 3451 |
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Family |
AMD EPYC |
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CPU Cores and Base Frequency |
The AMD EPYC Embedded 3451 has 16 CPU cores and can calculate 32 threads in parallel.
The clock frequency of the AMD EPYC Embedded 3451 is 2.14 GHz
and turbo frequency for one core is 3.0 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
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| No |
Hyperthreading |
Yes |
| None |
None |
16x |
| No |
Overclocking |
Yes |
| -- |
Threads |
32 |
| None |
None |
3.0 GHz |
| -- |
CPU Cores |
16 |
| -- |
Core architecture |
normal |
| None |
None |
2.14 GHz |
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Internal Graphics |
The Qualcomm Snapdragon 821 does not have integrated graphics.
The AMD EPYC Embedded 3451 does not have integrated graphics.
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| -- |
Shaders |
-- |
| -- |
Release date |
-- |
| -- |
Technology |
-- |
| -- |
Direct X |
-- |
| 0 bytes |
Max. GPU Memory |
0 bytes |
| -- |
Max. displays |
-- |
| -- |
Execution units |
-- |
| -- |
GPU frequency |
-- |
| -- |
Generation |
-- |
| -- |
GPU (Turbo) |
-- |
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GPU name |
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Artificial Intelligence and Machine Learning |
| -- |
AI specifications |
-- |
| -- |
AI hardware |
-- |
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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.
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| -- |
VP8 |
-- |
| -- |
VC-1 |
-- |
| -- |
JPEG |
-- |
| -- |
AV1 |
-- |
| -- |
h265 / HEVC (8 bit) |
-- |
| -- |
AVC |
-- |
| -- |
h264 |
-- |
| -- |
VP9 |
-- |
| -- |
h265 / HEVC (10 bit) |
-- |
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Memory & PCIe |
The processor supports a maximum memory capacity of 1.0 TB distributed across 4 memory channels. It offers a peak memory bandwidth of 85.3 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
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| pci |
PCIe |
pci |
| No |
AES-NI |
Yes |
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Memory type |
DDR4-2666 |
| No |
ECC |
Yes |
| 0 bytes |
Max. Memory |
1.0 TB |
| -- |
Memory channels |
4 |
| -- |
Bandwidth |
85.3 GB/s |
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Thermal Management |
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 100 W watts.
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| None |
TDP down |
80 W |
| None |
TDP (PL1 / PBP) |
100 W |
| -- |
Tjunction max |
105 °C |
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Technical details |
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD EPYC Embedded 3451 is manufactured using a 14 nm process.
In total, this processor boasts a generous 32.0 MB cache.
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| -- |
Release date |
Q1/2018 |
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Virtualization |
AMD-V, SVM |
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ISA extensions |
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 |
| -- |
Technology |
14 nm |
| -- |
Chip design |
Chiplet |
| -- |
Release price |
-- |
| -- |
Architecture |
Snowy Owl (Zen) |
| 0 bytes |
L3-Cache |
32.0 MB |
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Operating systems |
Windows 10, Linux |
| Technical data sheet |
Documents |
Technical data sheet |
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Instruction set (ISA) |
x86-64 (64 bit) |
| -- |
Part Number |
-- |
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Socket |
SP4 |
| 0 bytes |
L2-Cache |
8.0 MB |
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Estimated results for PassMark CPU Mark
Geekbench 5, 64bit (Multi-Core)
Geekbench 6 (Multi-Core)
iGPU - FP32 Performance (Single-precision GFLOPS)
Geekbench 6 (Single-Core)
Geekbench 5, 64bit (Single-Core)
