Intel Atom E3845 vs AMD Ryzen 7 7840H

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CPU comparison with benchmarks


Intel Atom E3845 CPU1 vs CPU2 AMD Ryzen 7 7840H
Intel Atom E3845 AMD Ryzen 7 7840H

CPU comparison

Intel Atom E3845 or AMD Ryzen 7 7840H - 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 E3845 has 4 cores with 4 threads and clocks with a maximum frequency of 1.91 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Intel Atom E3845 was released in Q4/2013.

The AMD Ryzen 7 7840H 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 7840H was released in Q1/2023.
Intel Atom (108) Family AMD Ryzen 7 (68)
Intel Atom E3800 (6) CPU group AMD Ryzen 7040 (21)
4 Generation 6
Bay Trail Architecture Phoenix (Zen 4)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom E3845 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Atom E3845 is 1.91 GHz while the AMD Ryzen 7 7840H has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 7 7840H is at 3.80 GHz (5.10 GHz).
Intel Atom E3845 Characteristic AMD Ryzen 7 7840H
4 Cores 8
4 Threads 16
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.91 GHz Frequency 3.80 GHz
-- Turbo Frequency (1 Core) 5.10 GHz
-- Turbo Frequency (All Cores) 4.25 GHz

Artificial Intelligence and Machine Learning

Processors 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.
Intel Atom E3845 Characteristic AMD Ryzen 7 7840H
-- AI hardware AMD Ryzen AI
-- AI specifications AMD dedicated AI XDNA Technology

Internal Graphics

The Intel Atom E3845 or AMD Ryzen 7 7840H 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.
Intel HD Graphics (Bay Trail GT1) GPU AMD Radeon 780M
0.54 GHz GPU frequency 0.80 GHz
0.79 GHz GPU (Turbo) 2.70 GHz
7 GPU Generation 3
22 nm Technology 4 nm
2 Max. displays 4
4 Compute units 12
32 Shader 768
No Hardware Raytracing Yes
No Frame Generation AMD FSR
2 GB Max. GPU Memory 32 GB
11.2 DirectX Version 12

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.
Intel HD Graphics (Bay Trail GT1) GPU AMD Radeon 780M
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode
No Codec AV1 Decode / Encode
Decode / Encode Codec AVC Decode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Atom E3845 can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The AMD Ryzen 7 7840H supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 120.0 GB/s.
Intel Atom E3845 Characteristic AMD Ryzen 7 7840H
DDR3L-1333 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
8 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 120.0 GB/s
No ECC Yes
-- L2 Cache 8.00 MB
2.00 MB L3 Cache 16.00 MB
-- PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Atom E3845 is 10 W, while the AMD Ryzen 7 7840H has a TDP of 54 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Atom E3845 Characteristic AMD Ryzen 7 7840H
10 W TDP (PL1 / PBP) 54 W
-- TDP (PL2) --
-- TDP up 60 W
-- TDP down 35 W
-- Tjunction max. 100 °C

Technical details

The Intel Atom E3845 is manufactured in 22 nm and has 2.00 MB cache. The AMD Ryzen 7 7840H is manufactured in 4 nm and has a 24.00 MB cache.
Intel Atom E3845 Characteristic AMD Ryzen 7 7840H
22 nm Technology 4 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
BGA 1170 Socket FP8
VT-x, VT-x EPT Virtualization AMD-V, SVM
Yes AES-NI Yes
Operating systems Windows 10, Windows 11, Linux
Q4/2013 Release date Q1/2023
-- Release price --
show more data show more data


Rate these processors

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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Atom E3845 (9%)
AMD Ryzen 7 7840H (100%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Atom E3845 (5%)
AMD Ryzen 7 7840H (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
198 (11%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 5.10 GHz
1857 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
696 (6%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 4.25 GHz
11334 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
151 (6%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 5.10 GHz
2456 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
455 (4%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 4.25 GHz
12135 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Atom E3845 Intel Atom E3845
Intel HD Graphics (Bay Trail GT1) @ 0.79 GHz
51 (1%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
AMD Radeon 780M @ 2.70 GHz
4201 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
1058 (4%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 4.25 GHz
28412 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
0 (0%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 5.10 GHz
1757 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
0 (0%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 4.25 GHz
15930 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
0 (0%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 4.25 GHz
624 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
0 (0%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 3.80 GHz
6744 (100%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

Processors 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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
Intel Atom E3845 Intel Atom E3845
4C 4T @ 1.91 GHz
0 (0%)
AMD Ryzen 7 7840H AMD Ryzen 7 7840H
8C 16T @ 3.80 GHz
10 (100%)

Devices using this processor
Intel Atom E3845 AMD Ryzen 7 7840H
Unknown Unknown

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