AMD Ryzen 7 7840U
- Cores: 8
- L3 cache: 16MB (shared)
- TDP: 15-30 W
- Transistor size: 4 nm
Ryzen 7 7840U - laptop processor produced by Amd for socket FP8 that has 8 cores and 16 threads. The base clock frequency of the CPU is 3300 MHz, but due to Turbo Core technology, it can perform up to 5100 MHz. The size of the L3 cache is 16 MB. Please note that this chip has integrated graphics Radeon 780M.
Review
Compare AMD Ryzen 7 7840U with other CPUs
Test in Benchmarks
Performance test of AMD Ryzen 7 7840U in benchmarksCinebench
GeekBench v6
| File compression | 1110 MB/sec |
| Clang compilation | 82.2 Klines/sec |
| HTML 5 Browser | 210.4 pages/sec |
| PDF Renderer | 298.4 Mpixels/sec |
| Text processing | 250.6 pages/sec |
| Background blur | 47.5 images/sec |
| Photo processing | 90.5 images/sec |
| Ray tracing | 17.5 Mpixels/sec |
PassMark
| Integer math | 89.3 GOps/sec |
| Floating point math | 50.9 GOps/sec |
| Find prime numbers | 79M Primes/sec |
| Random string sorting | 33.5M Strings/sec |
| Data encryption | 17.4 GBytes/sec |
| Data compression | 282.7 MBytes/sec |
| Physics | 1245 Frames/sec |
| Extended instructions | 20B Matrices/sec |
Blender
Performance Per Watt
| Cinebench 2024 / Watt | 24.3 PPW |
| Geekbench 6 Multi / Watt | 357.5 PPW |
| Passmark CPU Mark / Watt | 812.8 PPW |
| Blender / Watt | 6.65 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
| Date | Benchmark | Result |
|---|---|---|
| ๐ 2025-08-03 (Aaron) | Cinebench 2024 | 93 / 764 |
| ๐ 2025-03-15 (JP) | Cinebench 2024 | 96 / 728 |
Specifications
Ryzen 7 7840U technical specificationsGeneral
| Vendor | Amd |
| Released | May 3, 2023 |
| Type | Laptop |
| Instruction Set | x86-64 |
| Codename | Zen 4 (Phoenix) |
| Integrated GPU | Radeon 780M |
| Intel Equivalent | - Intel Core i7 1370P |
| Successor | - AMD Ryzen 7 250 |
AMD Ryzen CPU ranking - 82nd place
CPU
| P-Cores | 8 |
| P-Threads | 16 |
| Base Frequency (P) | 3.3 GHz |
| Turbo Boost Frequency (P) | 5.1 GHz |
| Total Cores | 8 |
| Total Threads | 16 |
| Bus Frequency | 100 MHz |
| Multiplier | 33x |
| L1 Cache | 64K (per core) |
| L2 Cache | 1MB (per core) |
| L3 Cache | 16MB (shared) |
| Unlocked Multiplier | No |
Package
| Transistors | 25 billions |
| Fabrication Process | 4 nm |
| TDP (PL1) | 15-30 W (configurable) |
| Socket | FP8 |
| Peak Temperature | 100ยฐC |
Laptop processors ranking - 130th place
iGPU
| Integrated Graphics | Radeon 780M |
| GPU Base Clock | 800 MHz |
| GPU Boost Clock | 2700 MHz |
| Shading Units | 768 |
| TMUs | 48 |
| ROPs | 32 |
| Execution Units | 12 |
| TGP | 15 W |
See also: Radeon 780M โ integrated graphics of AMD Ryzen 7 7840U
Memory Support
| Memory Types | - DDR5-5600 - LPDDR5x-7500 |
| Max. Memory Size | 256 GB |
| Memory Channels | 2 |
| ECC Support | No |
Misc
| Official Site | AMD Ryzen 7 7840U official page |
| PCI Express Version | 4.0 |
| PCI Express Lanes | 20 |
| Technologies | - Compute: AVX-512, BMI1, BMI2, F16C, SHA
- Performance: Precision Boost 2, SMT
- Virtualization: AMD-V
- Security: EVP, NX-Bit, SMAP, SMEP |