AMD Ryzen 7 7840U specifications and performance

AMD Ryzen 7 7840U is a 8 cores and 16 threads CPU processor produced by AMD. AMD Ryzen 7 7840U was released on 2023-05-03, the fabrication process is 4nm (nanometer), the CPU codename is Zen 4 (Phoenix), the instruction set architecture is x86-64, and the CPU's integrated graphics (iGPU) is Radeon 780M.

Basic Information

Vendor / Supplier AMD
Short name r7 7840u
Release date 2023-05-03
CPU code name Zen 4 (Phoenix)
Fabrication process 4nm (nanometer)
Instruction set architecture x86-64
Market Laptop
Integrated Graphics (iGPU) Radeon 780M

CPU core specifications

Total number of cores 8 cores
Total number of threads 16 threads
Number of performance cores 8 cores
Number of performance core threads 16 threads
Performance core base frequency / main frequency 3.3GHz
Performance core maximum turbo frequency 5.1GHz
Number of energy efficiency cores
Number of energy-efficient core threads
Energy efficiency core basic frequency / main frequency
Energy efficiency core maximum turbo frequency

CPU cache and frequency

Bus frequency 100MHz
L1 Cache 64 KB
L2 Cache 1 MB
L3 Cache 16 MB
Unlock multiplier No

Memory specifications

Maximum supported memory 256GB
Memory frequency support
  • - DDR5-5600MHz
  • - LPDDR5x-7500MHz
Maximum number of memory channels 2
Maximum memory bandwidth
ECC support No

Package specifications

CPU Socket FP8
Default thermal design power / TDP PL1 15W
Maximum Turbo Power Consumption / TDP PL2
Maximum temperature 100°C
PCIe interface PCIe 4.0
PCIe lane count 20

Integrated Graphics specifications

Integrated Graphics (iGPU) Radeon 780M
Base frequency 800MHz
Maximum acceleration frequency 2700MHz
Number of execution units 12
Stream Processors / Shading Units 768
Texture Units / TMUs 48
Raster Operations Units / ROPs 32
Total Graphics Power / TGP 15W
FP32 computing performance

Cinebench R23 performance test

Single core performance score
Multi-core performance score

PassMark performance test

Single core performance score
Multi-core performance score
Integer math 92 GOps/sec
Floating point math 53 GOps/sec
Find prime numbers 81 Million Primes/sec (Millions find prime numbers per second)
Random string sorting 33.1 Million Strings/sec (Millions random string sorting per second)
Data encryption 17.8 GBytes/sec (Gigabits per second)
Data compression 292.2 MBytes/sec (megabits per second)
Physics simulation 1256 Frames/sec (FPS)
Extended instruction test 20.7 Billion Matrices/sec (Billions matrix operations per second)

GeekBench v6 performance test

Single core performance
Multi-core performance
File compression 1140 MB/sec (megabits per second)
clang compilation 98.6 Klines/sec (thousands lines per second)
HTML5 browsing 226 pages/sec (pages per second)
PDF rendering 324.6 Mpixels/sec (megapixels per second)
Text processing 244.9 pages/sec (pages per second)
Background blur 34.9 images/sec (images per second)
Photo processing 87.5 images/sec (images per second)
Ray tracing 21.4 Mpixels/sec (megapixels per second)