AMD Ryzen 7 7840S vs AMD Ryzen 5 7645HX
The Ryzen 7 7840S has 0% better performance than the Ryzen 5 7645HX for the 3DMark 11 Performance Physics benchmark.
We do not have any performance per dollar data for the Ryzen 7 7840S and the Ryzen 5 7645HX for the 3DMark 11 Performance Physics benchmark.
Summary
About the AMD Ryzen 7 7840S CPU
The AMD Ryzen 7 7840S is a 8-core (16-thread) processor built for the mobile CPU market. The 7840S is compatible with FP7 FP7r2 FP8 motherboards and is fabricated on a 4 nm manufacturing process.
Memory and Cache
In terms of cache, the Ryzen 7 7840S has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 512 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 8 MB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 16 MB.
Cores and Clock Speeds
The Ryzen 7 7840S features 8 total cores which can process 16 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 3800.0 MHz, and it can boost up to 5100.0 MHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture.
Integrated Graphics
The Ryzen 7 7840S does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.
Benchmark Performance
The Ryzen 7 7840S has the 64th best 3DMark 11 Performance Physics score among the 720 benchmarked CPUs in our database. It achieves 56.23% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D.
About the AMD Ryzen 5 7645HX CPU
The AMD Ryzen 5 7645HX is a 6-core (12-thread) processor built for the mobile CPU market. It launched in Q1 2023. It is part of AMD's Ryzen 5 lineup, which is based on the Zen 4 microarchitecture. The 7645HX is compatible with AMD Socket FL1 motherboards and is fabricated on TSMC's 5 nm manufacturing process. It features the Radeon 610M integrated graphics solution.
Memory and Cache
The Ryzen 5 7645HX supports DDR5 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 5 7645HX has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 1 MB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 32 MB.
Cores and Clock Speeds
The Ryzen 5 7645HX features 6 total cores which can process 12 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 4.0 GHz, and it can boost up to 5.0 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is locked, making it incapable of overclocking for pushing performance further.
Integrated Graphics
The Ryzen 5 7645HX includes an integrated graphics solution called Radeon 610M. This graphics processor is directly integrated into the CPU and is not as powerful as a dedicated graphics card. While integrated graphics can handle basic tasks like web browsing and office applications, it is not suitable for more demanding activities such as gaming or video editing, where a dedicated graphics card offers superior performance.
Benchmark Performance
The Ryzen 5 7645HX has the 65th best 3DMark 11 Performance Physics score among the 720 benchmarked CPUs in our database. It achieves 56.03% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D.
General Info
General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| Manufacturer | AMD | AMD |
| Series | -- | Ryzen 5 |
| Market Segment | Mobile | Mobile |
| Release Date | -- | Q1 2023 |
| Production Status | -- | Active |
| Shop | Check Price | Check Price |
Benchmark Performance
The Ryzen 7 7840S has 0% better performance than the Ryzen 5 7645HX for the 3DMark 11 Performance Physics benchmark.
The Ryzen 7 7840S is ranked 64th with a score of 20,801, and the Ryzen 5 7645HX is ranked 65th with a score of 20,726.
We do not have any performance per dollar data for the Ryzen 7 7840S and the Ryzen 5 7645HX for the 3DMark 11 Performance Physics benchmark.
Relative Performance
The average score in the benchmark test can be compared to similar CPUs to assess relative performance. Generally, powerful CPUs tend to have higher scores.
| CPU | Benchmark Performance | |
|---|---|---|
| Ryzen 9 7845HX | 22,073 | +6% |
| Core i7-12800H | 22,022 | +6% |
| Core i5-13450HX | 21,982 | +6% |
| Core i7-12700H | 21,706 | +4% |
| Ryzen 7 7840S | 20,801 | |
| Ryzen 5 7645HX | 20,726 | -0% |
| Core i5-13500H | 20,615 | -1% |
| Core Ultra 7 155H | 20,611 | -1% |
| Core i7-13620H | 20,532 | -1% |
| Core i7-13700H | 20,503.5 | -1% |
Relative Value For Money
The average performance per dollar in the benchmark test can be compared to similar CPUs to assess relative value. A higher score implies a better value for your money.
| CPU | Performance Per Dollar | ||
|---|---|---|---|
| Our database does not have enough data to compare the benchmark performance per dollar with other CPUs. | |||
Benchmark Scores
This table showcases the average performance scores achieved by both CPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful CPUs tend to have higher scores.
- Popular
| Benchmark | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| 3DMark 11 Performance Physics | 20,801 (+0.36%) | 20,726 |
| 3DMark Time Spy CPU | 9,676 (+12.5%) | 8,601 |
| Cinebench R15 Multi-Core | 2,222.8 | 2,276 (+2.39%) |
| Cinebench R15 Single-Core | 274 | 289 (+5.47%) |
| Geekbench 6.2 Multi-Core | 12,598 (+7.52%) | 11,717 |
| Geekbench 6.2 Single-Core | 2,605 | 2,717 (+4.3%) |
| CPU Mark Multi-Thread | 25,312 | 26,868 (+6.15%) |
| CPU Mark Single-Thread | 3,551 | 3,915 (+10.25%) |
Technical Specs
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| Manufacturer | AMD | AMD |
| Foundry | -- | TSMC |
| Process Size | 4 nm | 5 nm |
| Transistors | -- | 6,570 million |
Architecture
CPU architecture specs like its memory channels, memory support, and microarchitecture. Newer CPU architectures can minimize bottlenecks and improve execution efficiency using more advanced techniques.
| Spec | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| Series | -- | Ryzen 5 |
| Microarchitecture | -- | Zen 4 |
| Codename | -- | Dragon Range |
| Memory Support | -- | DDR5 |
| Memory Channels | -- | Dual-channel |
| ECC Memory | -- | Yes |
Cores & Clock Speeds
Processing power information like its cores and clock speed. These specs impact how fast they can handle instructions and tasks. These have a strong impact on the CPU's performance.
| Spec | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| Cores | 8 | 6 |
| Threads | 16 | 12 |
| Clock Speed | 3800.0 MHz | 4.0 GHz |
| Turbo Clock | 5100.0 MHz | 5.0 GHz |
| Base Clock | -- | 100 MHz |
| Multiplier | -- | 40.0x |
| Multiplier Unlocked | -- | No |
Cache
CPU cache specs like its L1 & L2 cache. These provide the CPU with a small, but super-fast memory access. A larger cache can improve a CPU's performance.
| Spec | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| L1 Cache | 512 KB | 64 KB |
| L2 Cache | 8 MB | 1 MB |
| L3 Cache | 16 MB | 32 MB |
Compatibility & Power Consumption
Compatibility and power consumption information like its socket type, thermal design power, power limits. These can help verify the CPU's compatibility with other PC components.
| Spec | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| Socket | FP7 FP7r2 FP8 | AMD Socket FL1 |
| PCI Express | -- | PCIe 5.0 x28 |
| Thermal Design Power (TDP) | 35 W | 45 W |
| TJ Max | 100 °C | 100 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Ryzen 7 7840S | Ryzen 5 7645HX |
|---|---|---|
| Integrated Graphics | -- | Radeon 610M |
| Extensions / Technologies | -- | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, AVX-512, BMI1, BMI2, SHA, F16C, FMA3, NX-Bit, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.