Intel Atom Z3775 | AMD EPYC 7551P | |
CPU comparisonIntel Atom Z3775 or AMD EPYC 7551P - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Atom Z3775 has 4 cores with 4 threads and clocks with a maximum frequency of 2.39 GHz. Up to 4 GB of memory is supported in 2 memory channels. The Intel Atom Z3775 was released in Q1/2014. The AMD EPYC 7551P has 32 cores with 64 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7551P was released in Q3/2017. |
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Intel Atom (108) | Family | AMD EPYC (129) |
Intel Atom Z3700 (16) | CPU group | AMD EPYC 7001 (12) |
4 | Generation | 1 |
Bay Trail | Architecture | Naples (Zen) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Atom Z3775 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Atom Z3775 is 1.46 GHz (2.39 GHz) while the AMD EPYC 7551P has 32 CPU cores and 64 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7551P is at 2.00 GHz (3.00 GHz). |
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Intel Atom Z3775 | Characteristic | AMD EPYC 7551P |
4 | Cores | 32 |
4 | Threads | 64 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
1.46 GHz | Frequency | 2.00 GHz |
2.39 GHz | Turbo Frequency (1 Core) | 3.00 GHz |
-- | Turbo Frequency (All Cores) | 2.55 GHz |
Internal GraphicsThe Intel Atom Z3775 or AMD EPYC 7551P has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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Intel HD Graphics (Bay Trail GT1) | GPU | no iGPU |
0.31 GHz | GPU frequency | -- |
0.78 GHz | GPU (Turbo) | -- |
7 | GPU Generation | -- |
22 nm | Technology | |
2 | Max. displays | |
4 | Compute units | -- |
32 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | -- |
11.2 | DirectX Version | -- |
Hardware codec supportA 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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Intel HD Graphics (Bay Trail GT1) | GPU | no iGPU |
No | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | No |
No | Codec VP9 | No |
No | Codec VP8 | No |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode | Codec JPEG | No |
Memory & PCIeThe Intel Atom Z3775 can use up to 4 GB of memory in 2 memory channels. The maximum memory bandwidth is 17.1 GB/s. The AMD EPYC 7551P supports up to GB of memory in 8 memory channels and achieves a memory bandwidth of up to 170.6 GB/s. |
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Intel Atom Z3775 | Characteristic | AMD EPYC 7551P |
LPDDR3-1066 | Memory | DDR4-2666 |
4 GB | Max. Memory | |
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
17.1 GB/s | Max. Bandwidth | 170.6 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 64.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 128 |
-- | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Atom Z3775 is 3.5 W, while the AMD EPYC 7551P has a TDP of 180 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Atom Z3775 | Characteristic | AMD EPYC 7551P |
3.5 W | TDP (PL1 / PBP) | 180 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
90 °C | Tjunction max. | -- |
Technical detailsThe Intel Atom Z3775 is manufactured in 22 nm and has 2.00 MB cache. The AMD EPYC 7551P is manufactured in 14 nm and has a 64.00 MB cache. |
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Intel Atom Z3775 | Characteristic | AMD EPYC 7551P |
22 nm | Technology | 14 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
BGA 1380 | Socket | SP3 |
VT-x, VT-x EPT | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Operating systems | Windows 10, Linux | |
Q1/2014 | Release date | Q3/2017 |
-- | Release price | 2750 $ |
show more data | show more data | |
Intel Atom Z3775
4C 4T @ 2.39 GHz |
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AMD EPYC 7551P
32C 64T @ 3.00 GHz |
Intel Atom Z3775
4C 4T @ 1.46 GHz |
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AMD EPYC 7551P
32C 64T @ 2.55 GHz |
Intel Atom Z3775
4C 4T @ 1.46 GHz |
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AMD EPYC 7551P
32C 64T @ 2.55 GHz |
Intel Atom Z3775
4C 4T @ 2.39 GHz |
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AMD EPYC 7551P
32C 64T @ 3.00 GHz |
Intel Atom Z3775
4C 4T @ 1.46 GHz |
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AMD EPYC 7551P
32C 64T @ 2.55 GHz |
Intel Atom Z3775
Intel HD Graphics (Bay Trail GT1) @ 0.78 GHz |
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AMD EPYC 7551P
@ 0.00 GHz |
Intel Atom Z3775
4C 4T @ 2.39 GHz |
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AMD EPYC 7551P
32C 64T @ 3.00 GHz |
Intel Atom Z3775
4C 4T @ 1.46 GHz |
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AMD EPYC 7551P
32C 64T @ 2.55 GHz |
Devices using this processor |
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Intel Atom Z3775 | AMD EPYC 7551P |
Unknown | Unknown |