AMD Ryzen 7 7840U vs Ryzen 7 7840HS

We compared two 8-core laptop CPUs: the 3.3 GHz AMD Ryzen 7 7840U against the 3.8 GHz Ryzen 7 7840HS. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Generic CPU rating

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench R23

Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
17084
Cinebench R23 Scores (147th and 89th place)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
12085
File compression 1140 MB/sec 1120 MB/sec
Clang compilation 98.6 Klines/sec 102.5 Klines/sec
HTML 5 Browser 226 pages/sec 217.2 pages/sec
PDF Renderer 324.6 Mpixels/sec 350 Mpixels/sec
Text processing 244.9 pages/sec 251.8 pages/sec
Background blur 34.9 images/sec 59.4 images/sec
Photo processing 87.5 images/sec 87.6 images/sec
Ray tracing 21.4 Mpixels/sec 22.5 Mpixels/sec
Sources: GeekBench [1], [2]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
28948
Integer math 92.3 GOps/sec 100.5 GOps/sec
Floating point math 52.7 GOps/sec 60.9 GOps/sec
Find prime numbers 81M Primes/sec 88M Primes/sec
Random string sorting 33.1M Strings/sec 39.3M Strings/sec
Data encryption 17.8 GBytes/sec 21 GBytes/sec
Data compression 292.4 MBytes/sec 352.6 MBytes/sec
Physics 1258 Frames/sec 1392 Frames/sec
Extended instructions 20.7B Matrices/sec 26.3B Matrices/sec
Sources: PassMark [3], [4]
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Specifications

Full technical specification of AMD Ryzen 7 7840U and Ryzen 7 7840HS

General

Vendor Amd Amd
Released May 3, 2023 January 4, 2023
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Zen 4 (Phoenix) Zen 4 (Phoenix)
Integrated GPU Radeon 780M Radeon 780M
Laptop processors ranking (40th and 28th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 16 16
Base Frequency (P) 3.3 GHz 3.8 GHz
Turbo Boost Frequency (P) 5.1 GHz 5.1 GHz
Total
Total Cores 8 8
Total Threads 16 16
Bus Frequency 100 MHz 100 MHz
Multiplier 33x 38x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 1MB (per core)
L3 Cache 16MB (shared) 16MB (shared)
Unlocked Multiplier No No

Package

Transistors 25 billions 25 billions
Fabrication process 4 nm 4 nm
TDP (PL1) 15-30 W (configurable) 35-54 W (configurable)
Socket FP8 FP8
Peak temperature 100°C 100°C

iGPU

Integrated Graphics Radeon 780M Radeon 780M
GPU Base Clock 800 MHz 800 MHz
GPU Boost Clock 2700 MHz 2700 MHz
Shading Units 768 768
TMUs 48 48
ROPs 32 32
Execution Units 12 12
TGP 15 W 15 W
iGPU FLOPS
4.15 TFLOPS
4.15 TFLOPS

Memory Support

Memory types - DDR5-5600
- LPDDR5x-7500
- DDR5-5600
- LPDDR5x-7500
Memory Size 256 GB 256 GB
Max. Memory Channels 2 2
ECC Support No Yes

Misc

Official site AMD Ryzen 7 7840U official page AMD Ryzen 7 7840HS official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20
Further details
Notes on Ryzen 7 7840HS:
    - DDR5 memory is supported only on the FP7r2 socket, while FP7 and FP8 sockets support LPDDR5/x.
    - ECC support is available exclusively on the FP7r2 socket.

Cast your vote

Choose between two processors
206 (58.7%)
145 (41.3%)
Total votes: 351

Comments

So which CPU will you choose: AMD Ryzen 7 7840HS or Ryzen 7 7840U?
Avatar
Marko August 27, 2023 at 04:11 PM
It is a better single core, slightly worse multicore for almost half the power consumption. What's even the point of the HS version? Combine the 30W U version with a 100W 4060/4070 and you have a gloriously efficient and cool laptop.
+58 Reply
Avatar
Polo December 3, 2023 at 04:23 AM
You don't need a dedicated GPU when you get a Ryzen 7840 – that's the entire concept. If you opt for a GPU that exhausts your battery life, you might as well go with Intel.
+22 Reply
Avatar
Lello January 16, 2024 at 10:57 PM
Polo, I have a 7940HS laptop, I used to have an i7-12700h, and both have dedicated GPUs yet my current laptop with the 7940hs gets at least 2-3x the battery life. My Intel laptop had a 140w 3070ti and my AMD laptop has a 140w 4070. The difference in battery life is very very very apparent and I have very little loss of performance when unplugged.
+7 Reply
Avatar
Jules January 27, 2024 at 03:17 PM
Polo, Intel has finally caught up with AMD in terms of integrated graphics through their "Ultra" lineup.
0 Reply
Avatar
waps March 21, 2024 at 03:57 AM
Jules, Doesn't seem so. You can view benchmarks now.
0 Reply