AMD Ryzen 9 7845HX vs Qualcomm Snapdragon 820

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CPU comparison with benchmarks


AMD Ryzen 9 7845HX CPU1 vs CPU2 Qualcomm Snapdragon 820
AMD Ryzen 9 7845HX Qualcomm Snapdragon 820

CPU comparison

AMD Ryzen 9 7845HX or Qualcomm Snapdragon 820 - 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 Ryzen 9 7845HX has 12 cores with 24 threads and clocks with a maximum frequency of 5.20 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7845HX was released in Q1/2023.

The Qualcomm Snapdragon 820 has 4 cores with 4 threads and clocks with a maximum frequency of 2.15 GHz. The CPU supports up to 12 GB of memory in 4 memory channels. The Qualcomm Snapdragon 820 was released in Q4/2015.
AMD Ryzen 9 (40) Family Qualcomm Snapdragon (104)
AMD Ryzen 7045 (6) CPU group Qualcomm Snapdragon 820 (3)
6 Generation 3
Dragon Range (Zen 4) Architecture Kryo
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 9 7845HX is a 12 core processor with a clock frequency of 3.00 GHz (5.20 GHz). The Qualcomm Snapdragon 820 has 4 CPU cores with a clock frequency of 2.15 GHz.
AMD Ryzen 9 7845HX Characteristic Qualcomm Snapdragon 820
12 Cores 4
24 Threads 4
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading No
Yes Overclocking ? No
3.00 GHz (5.20 GHz)
12x Zen 4		 A-Core 2.15 GHz
2x Kryo
-- B-Core 1.60 GHz
2x Kryo

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
AMD Ryzen 9 7845HX Characteristic Qualcomm Snapdragon 820
-- AI hardware Qualcomm AI engine
-- AI specifications Hexagon 680
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
AMD Radeon 610M GPU Qualcomm Adreno 530
0.40 GHz GPU frequency 0.62 GHz
2.20 GHz GPU (Turbo) 0.62 GHz
9 GPU Generation 5
6 nm Technology 14 nm
3 Max. displays 0
2 Compute units --
128 Shader 256
Yes Hardware Raytracing No
No Frame Generation No
8 GB Max. GPU Memory --
12 DirectX Version 11,1

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.
AMD Radeon 610M GPU Qualcomm Adreno 530
Decode / Encode Codec h265 / HEVC (8 bit) Decode
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode
Decode / Encode Codec VP9 Decode
Decode / Encode Codec VP8 Decode
Decode Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode

Memory & PCIe

The AMD Ryzen 9 7845HX supports a maximum of 128 GB of memory in 2 memory channels. The Qualcomm Snapdragon 820 can connect up to 12 GB of memory in 4 memory channels.
AMD Ryzen 9 7845HX Characteristic Qualcomm Snapdragon 820
DDR5-5200 Memory LPDDR4-3733
128 GB Max. Memory 12 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
83.2 GB/s Max. Bandwidth 14.9 GB/s
Yes ECC No
12.00 MB L2 Cache --
64.00 MB L3 Cache --
5.0 PCIe version --
28 PCIe lanes --
110.3 GB/s PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 9 7845HX has a TDP of 55 W, that of the Qualcomm Snapdragon 820 is --.
AMD Ryzen 9 7845HX Characteristic Qualcomm Snapdragon 820
55 W TDP (PL1 / PBP) --
-- TDP (PL2) --
75 W TDP up --
45 W TDP down --
100 °C Tjunction max. --

Technical details

The AMD Ryzen 9 7845HX has a 76.00 MB cache, while the Qualcomm Snapdragon 820 cache has a total of 0.00 MB.
AMD Ryzen 9 7845HX Characteristic Qualcomm Snapdragon 820
5 nm Technology 14 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions --
FL1 Socket --
AMD-V, SVM Virtualization None
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Android
Q1/2023 Release date Q4/2015
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 9 7845HX to help other visitors make their purchasing decisions. The average rating is 4.8 stars (15 ratings). Rate now:
Here you can rate the Qualcomm Snapdragon 820 to help other visitors make their purchasing decisions. The average rating is 4.3 stars (3 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD Ryzen 9 7845HX (100%)
Qualcomm Snapdragon 820 (16%)
⌀ Multi core performance in 3 CPU benchmarks
AMD Ryzen 9 7845HX (100%)
Qualcomm Snapdragon 820 (4%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz
2052 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
344 (17%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz
16789 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
903 (5%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz
2645 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
367 (14%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz
13667 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
746 (5%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
AMD Radeon 610M @ 2.20 GHz
443 (93%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
Qualcomm Adreno 530 @ 0.62 GHz
476 (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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz
46864 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
1362 (3%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz
1859 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
0 (0%)

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.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz
26654 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
0 (0%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
AMD Ryzen 9 7845HX AMD Ryzen 9 7845HX
26,654 CB R23 MC @ 102 W
261 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
2.15 GHz
0 (0%)

Devices using this processor
AMD Ryzen 9 7845HX Qualcomm Snapdragon 820
Unknown Unknown

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