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CPU • AMD • LAPTOP
AMD Ryzen 7 7840U

AMD Ryzen 7 7840U

Codename: Zen 4 (Phoenix) Released: May 3, 2023
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Total Cores
8
Physical Cores
Total Threads
16
Concurrent Threads
Boost Clock
5100 MHz
Max Turbo Frequency

Technical Highlights

Vendor : AMD
Socket : FP8
Manufacturing Process : 4 nm
TDP (PL1) : 15-30 W

About this CPU

Zen 4 (Phoenix) laptop CPU with 8 cores and 16 threads, featuring Radeon 780M graphics and Ryzen AI for ultraportable laptops.

Last updated: April 10, 2026
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Overall Scores General Information Package and Thermals CPU Cores Memory Support Benchmarks Performance Charts FAQ

Overall Score Of AMD Ryzen 7 7840U

This summarizes how AMD Ryzen 7 7840U scores across single-core performance, multi-core performance, CPU architecture, memory architecture, and energy efficiency.

73
Overall
Single-Core Performance
73
Multi-Core Performance
64
CPU Architecture
59
Memory Architecture
65
Energy Efficiency
74

General Information of AMD Ryzen 7 7840U

CPU Name

AMD Ryzen 7 7840U

Vendor

AMD

Release Date

May 3, 2023

Type

Laptop

Instruction Set

x86-64

Codename

Zen 4 (Phoenix)

Package and Thermals of AMD Ryzen 7 7840U

Manufacturing Process

4 nm

50% of the current best Manufacturing Process score

Max Temp (TJMax)

Top tier

100 C

91% of the current best Max Temp (TJMax) score

Transistor Count

25 billion

TDP (PL1)

15-30 W

Socket

FP8

CPU Cores of AMD Ryzen 7 7840U

Performance Cores

P-Cores

8

33% of the current best P-Cores score

P-Threads

Good

16

50% of the current best P-Threads score

P-Core Base Frequency

Good

3300 MHz

70% of the current best P-Core Base Frequency score

P-Core Turbo Frequency

Excellent

5100 MHz

85% of the current best P-Core Turbo Frequency score

Total

Total Cores

8

25% of the current best Total Cores score

Total Threads

Good

16

50% of the current best Total Threads score

Multiplier

Locked

Bus Frequency

Top tier

100 MHz

100% of the current best Bus Frequency score

Unlocked Multiplier

No

L1 Cache

64 KB

33% of the current best L1 Cache score

L2 Cache

1 MB

2% of the current best L2 Cache score

L3 Cache

16 MB

8% of the current best L3 Cache score

NPU

Yes

NPU TOPS

10 TOPS

21% of the current best NPU TOPS score

Memory Support of AMD Ryzen 7 7840U

Memory Types

Top tier

DDR5-5600, LPDDR5x-7500

100% of the current best Memory Types score

Max Memory Size

Excellent

256 GB

50% of the current best Max Memory Size score

Memory Channels

2

3% of the current best Memory Channels score

ECC Support

No

Technologies

AVX-512, BMI1, BMI2, F16C, SHA, Precision Boost 2, SMT, AMD-V, EVP, NX-Bit, SMAP, SMEP

Benchmarks of AMD Ryzen 7 7840U

Geekbench V6

Benchmark results for this category.

Multi-Core:
10,726
33% of max score
Single-Core:
2,465
58% of max score
File Compression:
1,110
41% of max score
Clang Compression:
82
26% of max score
HTML5 Browser:
210
26% of max score
PDF Renderer:
298
39% of max score
Text Processing:
251
56% of max score
Background Blur:
48
41% of max score
Photo Processing:
91
38% of max score
Ray Tracing:
18
29% of max score

PassMark CPU

Benchmark results for this category.

Multi-Core:
24,415
34% of max score
Single-Core:
3,542 MOps/Sec
60% of max score
Good
Integer Math:
89,500 MOps/Sec
37% of max score
Floating Point:
51,000 MOps/Sec
22% of max score
Prime Numbers:
79 Million Primes/Sec
7% of max score
String Sorting:
33,500 Thousand Strings/Sec
27% of max score
Data Encryption:
17,400 MBytes/Sec
30% of max score
Data Compression:
283,000 KBytes/Sec
26% of max score
Physics:
1,247 Frames/Sec
14% of max score
Extended Instructions:
20,000 Million Matrices/Sec
27% of max score

Cinebench 2024

Benchmark results for this category.

Multi-Core:
728
23% of max score
Single-Core:
96
46% of max score

Blender

Benchmark results for this category.

Render Score:
200 (99th)
27% of max score

Performance Charts Of AMD Ryzen 7 7840U

These charts show how AMD Ryzen 7 7840U balances CPU benchmark performance and relative score versus current market leaders.

Performance Radar Chart

Category scores overview (0 to 100)
AMD Ryzen 7 7840U

Performance Benchmarks

Grey is the market top value. Colored bar is AMD Ryzen 7 7840U.
Market Top
AMD Ryzen 7 7840U

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Frequently Asked Questions about AMD Ryzen 7 7840U

The AMD Ryzen 7 7840U was officially released in May 3, 2023, targeting the Laptop market.

The AMD Ryzen 7 7840U is equipped with 8 cores and 16 threads, providing an excellent balance for both high-end gaming and standard productivity tasks.

The AMD Ryzen 7 7840U uses the FP8 socket. This is a critical specification for compatibility, as it dictates which motherboards can support this processor.

The AMD Ryzen 7 7840U operates at a base clock frequency of 3300 MHz for its performance cores. This is the speed the processor runs at under normal, non-intensive workloads.

The AMD Ryzen 7 7840U can reach a maximum turbo boost frequency of 5100 MHz on its performance cores. This allows the CPU to dynamically increase its speed to handle demanding tasks and gaming workloads.

The AMD Ryzen 7 7840U has a maximum junction temperature (TjMax) of 100 C. This is the maximum temperature possible before the processor initiates thermal throttling or shuts down to prevent permanent damage.

The AMD Ryzen 7 7840U achieves a multi-core score of 728 on Cinebench 2024, reflecting its capability in multi-threaded creative and rendering applications.

The AMD Ryzen 7 7840U scores 2,465 on the Geekbench v6 single-core test, indicating how snappy and responsive it will feel in everyday applications and most games.

With an overall performance rating of 73%, the AMD Ryzen 7 7840U is considered a high-performance processor in our comprehensive CPU database.

The AMD Ryzen 7 7840U features 16 MB of L3 cache. A larger cache helps the processor access frequently used data faster, which can significantly boost gaming performance.

The AMD Ryzen 7 7840U has a base power consumption (TDP) of 15-30 W. This value is important for choosing an adequate CPU cooler and determining your overall system power requirements.

The AMD Ryzen 7 7840U supports DDR5-5600, LPDDR5x-7500 memory, dictating the RAM speeds and capacities you can pair with this processor.

The AMD Ryzen 7 7840U includes an integrated GPU, meaning you don't strictly need a dedicated graphics card for basic display output.