Performance
Ryzen 5 7645HX18% better
20,72656% of 36,991
Ryzen 7 8840U
17,50547% of 36,991
The Ryzen 5 7645HX has 18% better performance than the Ryzen 7 8840U for the 3DMark 11 Performance Physics benchmark.
Performance per dollar
Ryzen 5 7645HX
No data available
Ryzen 7 8840U
No data available
We do not have any performance per dollar data for the Ryzen 5 7645HX and the Ryzen 7 8840U for the 3DMark 11 Performance Physics benchmark.
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Summary
#
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 721 benchmarked CPUs in our database. It achieves 56.03% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D.
About the AMD Ryzen 7 8840U CPU
The AMD Ryzen 7 8840U is a 8-core (16-thread) processor built for the mobile CPU market. It launched in Q4 2023. It is part of AMD's Ryzen 7 lineup, which is based on the Zen 4 microarchitecture. The 8840U is compatible with AMD Socket FP8 motherboards and is fabricated on TSMC's 4 nm manufacturing process. It features the Radeon 780M integrated graphics solution.
Memory and Cache
The Ryzen 7 8840U supports DDR5 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 7 8840U 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 16 MB.
Cores and Clock Speeds
The Ryzen 7 8840U 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 3.3 GHz, and it can boost up to 5.1 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 7 8840U includes an integrated graphics solution called Radeon 780M. 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 7 8840U has the 100th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 47.32% 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 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| Manufacturer | AMD | AMD |
| Series | Ryzen 5 | Ryzen 7 |
| Market Segment | Mobile | Mobile |
| Release Date | Q1 2023 | Q4 2023 |
| Production Status | Active | Active |
| Shop | Check Price | Check Price |
Benchmark Performance
#
Performance
Ryzen 5 7645HX18% better
20,72656% of 36,991
Ryzen 7 8840U
17,50547% of 36,991
The Ryzen 5 7645HX has 18% better performance than the Ryzen 7 8840U for the 3DMark 11 Performance Physics benchmark.
The Ryzen 5 7645HX is ranked 65th with a score of 20,726, and the Ryzen 7 8840U is ranked 100th with a score of 17,505.
Performance per dollar
Ryzen 5 7645HX
No data available
Ryzen 7 8840U
No data available
We do not have any performance per dollar data for the Ryzen 5 7645HX and the Ryzen 7 8840U 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.
Choose Baseline CPU:Ryzen 5 7645HX or
| CPU | Benchmark Performance | |
|---|---|---|
| Core i7-12700H | 21,706 | +5% |
| Ryzen 7 7840S | 20,801 | +0% |
| Ryzen 5 7645HX | 20,726 | |
| Core i5-13500H | 20,615 | -1% |
| Core Ultra 7 155H | 20,611 | -1% |
| Core i5-13420H | 17,616 | -15% |
| Ryzen 7 6800H | 17,606.5 | -15% |
| Ryzen 7 8840U | 17,505 | -16% |
| Ryzen 5 7640HS | 17,294 | -17% |
| Ryzen 5 PRO 7640HS | 17,057 | -18% |
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.
Choose Baseline CPU:Ryzen 5 7645HX orRyzen 7 8840U
| 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 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| 3DMark 11 Performance Physics | 20,726 (+18.4%) | 17,505 |
| 3DMark Time Spy CPU | 8,601 (+1.73%) | 8,455 |
| Cinebench R15 Multi-Core | 2,276 (+12.45%) | 2,024 |
| Cinebench R15 Single-Core | 289 (+9.89%) | 263 |
| Geekbench 6.2 Multi-Core | 11,717 (+5.14%) | 11,144 |
| Geekbench 6.2 Single-Core | 2,717 (+7.09%) | 2,537 |
| CPU Mark Multi-Thread | 26,868 (+4.76%) | 25,646 |
| CPU Mark Single-Thread | 3,915 (+2.86%) | 3,806 |
Benchmarks Source: Notebookcheck
Technical Specs
#
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Ryzen 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| Manufacturer | AMD | AMD |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 4 nm |
| Transistors | 6,570 million | 25,000 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 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| Series | Ryzen 5 | Ryzen 7 |
| Microarchitecture | Zen 4 | Zen 4 |
| Codename | Dragon Range | Hawk Point |
| Memory Support | DDR5 | DDR5 |
| Memory Channels | Dual-channel | Dual-channel |
| ECC Memory | Yes | No |
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 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| Cores | 6 | 8 |
| Threads | 12 | 16 |
| Clock Speed | 4.0 GHz | 3.3 GHz |
| Turbo Clock | 5.0 GHz | 5.1 GHz |
| Base Clock | 100 MHz | 100 MHz |
| Multiplier | 40.0x | 33.0x |
| Multiplier Unlocked | No | 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 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| L1 Cache | 64 KB | 64 KB |
| L2 Cache | 1 MB | 1 MB |
| L3 Cache | 32 MB | 16 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 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| Socket | AMD Socket FL1 | AMD Socket FP8 |
| PCI Express | PCIe 5.0 x28 | PCIe 4.0 x20 |
| Thermal Design Power (TDP) | 45 W | 28 W |
| TJ Max | 100 °C | 100 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Ryzen 5 7645HX | Ryzen 7 8840U |
|---|---|---|
| Integrated Graphics | Radeon 610M | Radeon 780M |
| 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 | 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, XDNA2 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.