AMD EPYC Embedded 3251 | AMD Ryzen 7 7840HS | |
CPU comparisonAMD EPYC Embedded 3251 or AMD Ryzen 7 7840HS - 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 AMD EPYC Embedded 3251 has 8 cores with 16 threads and clocks with a maximum frequency of 3.10 GHz. Up to GB of memory is supported in 2 memory channels. The AMD EPYC Embedded 3251 was released in Q1/2018. The AMD Ryzen 7 7840HS has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 7 7840HS was released in Q1/2023. |
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AMD EPYC (129) | Family | AMD Ryzen 7 (67) |
AMD EPYC Embedded 3000 (7) | CPU group | AMD Ryzen 7040 (21) |
1 | Generation | 6 |
Snowy Owl (Zen) | Architecture | Phoenix (Zen 4) |
Desktop / Server | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | AMD Ryzen 7 8840HS |
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CPU Cores and Base FrequencyThe AMD EPYC Embedded 3251 has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD EPYC Embedded 3251 is 2.50 GHz (3.10 GHz) while the AMD Ryzen 7 7840HS has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 7 7840HS is at 3.80 GHz (5.10 GHz). |
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AMD EPYC Embedded 3251 | Characteristic | AMD Ryzen 7 7840HS |
8 | Cores | 8 |
16 | Threads | 16 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
2.50 GHz | Frequency | 3.80 GHz |
3.10 GHz | Turbo Frequency (1 Core) | 5.10 GHz |
-- | Turbo Frequency (All Cores) | 4.25 GHz |
Artificial Intelligence and Machine LearningProcessors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor. |
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AMD EPYC Embedded 3251 | Characteristic | AMD Ryzen 7 7840HS |
-- | AI hardware | AMD Ryzen AI |
-- | AI specifications | AMD dedicated AI XDNA Technology |
Internal GraphicsThe AMD EPYC Embedded 3251 or AMD Ryzen 7 7840HS 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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no iGPU | GPU | AMD Radeon 780M |
GPU frequency | 0.80 GHz | |
-- | GPU (Turbo) | 2.70 GHz |
-- | GPU Generation | 3 |
Technology | 4 nm | |
Max. displays | 4 | |
-- | Compute units | 12 |
-- | Shader | 768 |
No | Hardware Raytracing | Yes |
No | Frame Generation | AMD FSR |
-- | Max. GPU Memory | 32 GB |
-- | DirectX Version | 12 |
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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no iGPU | GPU | AMD Radeon 780M |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
No | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode |
No | Codec VP8 | Decode |
No | Codec AV1 | Decode / Encode |
No | Codec AVC | Decode |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD EPYC Embedded 3251 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 42.7 GB/s. The AMD Ryzen 7 7840HS supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 120.0 GB/s. |
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AMD EPYC Embedded 3251 | Characteristic | AMD Ryzen 7 7840HS |
DDR4-2666 | Memory | DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 |
Max. Memory | 256 GB | |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
42.7 GB/s | Max. Bandwidth | 120.0 GB/s |
Yes | ECC | Yes |
4.00 MB | L2 Cache | 8.00 MB |
16.00 MB | L3 Cache | 16.00 MB |
3.0 | PCIe version | 4.0 |
32 | PCIe lanes | 20 |
31.5 GB/s | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC Embedded 3251 is 55 W, while the AMD Ryzen 7 7840HS has a TDP of 54 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD EPYC Embedded 3251 | Characteristic | AMD Ryzen 7 7840HS |
55 W | TDP (PL1 / PBP) | 54 W |
-- | TDP (PL2) | -- |
-- | TDP up | 60 W |
-- | TDP down | 35 W |
105 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD EPYC Embedded 3251 is manufactured in 14 nm and has 20.00 MB cache. The AMD Ryzen 7 7840HS is manufactured in 4 nm and has a 24.00 MB cache. |
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AMD EPYC Embedded 3251 | Characteristic | AMD Ryzen 7 7840HS |
14 nm | Technology | 4 nm |
Chiplet | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
SP4r2 | Socket | FP8 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q1/2018 | Release date | Q1/2023 |
-- | Release price | -- |
show more data | show more data | |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
AMD EPYC Embedded 3251
8C 16T @ 3.10 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
AMD EPYC Embedded 3251
8C 16T @ 3.10 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
AMD EPYC Embedded 3251
8C 16T @ 3.10 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
AMD EPYC Embedded 3251
8C 16T @ 3.10 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
AMD EPYC Embedded 3251
8C 16T @ 3.10 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
AMD EPYC Embedded 3251
@ 0.00 GHz |
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AMD Ryzen 7 7840HS
AMD Radeon 780M @ 2.70 GHz |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz |
AMD EPYC Embedded 3251
2.50 GHz |
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AMD Ryzen 7 7840HS
15,930 CB R23 MC @ 55 W |
AMD EPYC Embedded 3251
8C 16T @ 2.50 GHz |
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AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz |
Devices using this processor |
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AMD EPYC Embedded 3251 | AMD Ryzen 7 7840HS |
Unknown | Lenovo IdeaPad Pro 5 14 Lenovo IdeaPad Pro 5 16 |