AMD Ryzen 9 7945HX3D vs AMD Ryzen 9 9955HX3D
The Ryzen 9 9955HX3D has 15% better performance than the Ryzen 9 7945HX3D for the 3DMark 11 Performance Physics benchmark.
We do not have any performance per dollar data for the Ryzen 9 7945HX3D and the Ryzen 9 9955HX3D for the 3DMark 11 Performance Physics benchmark.
Summary
About the AMD Ryzen 9 7945HX3D CPU
The AMD Ryzen 9 7945HX3D is a 16-core (32-thread) processor built for the mobile CPU market. It launched in Q3 2023. It is part of AMD's Ryzen 9 lineup, which is based on the Zen 4 microarchitecture. The 7945HX3D 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 9 7945HX3D supports DDR5 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 9 7945HX3D 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 128 MB.
Cores and Clock Speeds
The Ryzen 9 7945HX3D features 16 total cores which can process 32 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 2.3 GHz, and it can boost up to 5.4 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is unlocked, enabling overclocking for those seeking to push the CPU's performance further.
Integrated Graphics
The Ryzen 9 7945HX3D 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 9 7945HX3D has the 16th best 3DMark 11 Performance Physics score among the 768 benchmarked CPUs in our database. It achieves 77.63% of the performance of the best benchmarked CPU, the AMD Ryzen 9 9950X.
About the AMD Ryzen 9 9955HX3D CPU
The AMD Ryzen 9 9955HX3D is a 16-core (32-thread) processor built for the mobile CPU market. It launched in Q1 2025. It is part of AMD's Ryzen 9 lineup, which is based on the Zen 5 microarchitecture. The 9955HX3D is compatible with AMD Socket FL1 motherboards and is fabricated on TSMC's 4 nm manufacturing process. It features the Radeon 610M integrated graphics solution.
Memory and Cache
The Ryzen 9 9955HX3D supports DDR5 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 9 9955HX3D has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 80 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 128 MB.
Cores and Clock Speeds
The Ryzen 9 9955HX3D features 16 total cores which can process 32 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 2.5 GHz, and it can boost up to 5.4 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is unlocked, enabling overclocking for those seeking to push the CPU's performance further.
Integrated Graphics
The Ryzen 9 9955HX3D 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 9 9955HX3D has the 4th best 3DMark 11 Performance Physics score among the 768 benchmarked CPUs in our database. It achieves 89.23% of the performance of the best benchmarked CPU, the AMD Ryzen 9 9950X.
General Info
General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Ryzen 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| Manufacturer | AMD | AMD |
| Series | Ryzen 9 | Ryzen 9 |
| Market Segment | Mobile | Mobile |
| Release Date | Q3 2023 | Q1 2025 |
| Production Status | Active | Active |
| Shop | Check Price | Check Price |
Benchmark Performance
The Ryzen 9 9955HX3D has 15% better performance than the Ryzen 9 7945HX3D for the 3DMark 11 Performance Physics benchmark.
The Ryzen 9 7945HX3D is ranked 16th with a score of 29,707, and the Ryzen 9 9955HX3D is ranked 4th with a score of 34,146.
We do not have any performance per dollar data for the Ryzen 9 7945HX3D and the Ryzen 9 9955HX3D 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 9955HX3D | 34,146 | +15% |
| Ryzen 9 9955HX | 32,936 | +11% |
| Ryzen 9 7945HX3D | 29,707 | |
| Core Ultra 9 285HX | 29,213 | -2% |
| Ryzen AI Max+ 395 | 26,998 | -9% |
| Ryzen 9 7945HX | 26,667 | -10% |
| Core Ultra 9 275HX | 26,611.5 | -10% |
| Ryzen 7 7745HX | 25,687.5 | -14% |
| Ryzen AI Max+ PRO 395 | 25,322 | -15% |
| Core i9-13980HX | 25,051 | -16% |
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 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| 3DMark 11 Performance Physics | 29,707 | 34,146 (+14.94%) |
| 3DMark Time Spy CPU | 14,131 (+8.02%) | 13,082 |
| Cinebench R15 Multi-Core | 5,600 | 6,042.5 (+7.9%) |
| Cinebench R15 Single-Core | 311 | 327 (+5.14%) |
| Geekbench 6.2 Multi-Core | 16,757 | -- |
| Geekbench 6.2 Single-Core | 2,768 | -- |
| CPU Mark Multi-Thread | 57,796 | -- |
| CPU Mark Single-Thread | 4,116 | -- |
Technical Specs
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Ryzen 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| Manufacturer | AMD | AMD |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 4 nm |
| Transistors | 17,840 million | 16,630 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 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| Series | Ryzen 9 | Ryzen 9 |
| Microarchitecture | Zen 4 | Zen 5 |
| Codename | Dragon Range | Fire Range |
| Memory Support | DDR5 | DDR5 |
| Memory Channels | Dual-channel | Dual-channel |
| ECC Memory | Yes | 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 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| Cores | 16 | 16 |
| Threads | 32 | 32 |
| Clock Speed | 2.3 GHz | 2.5 GHz |
| Turbo Clock | 5.4 GHz | 5.4 GHz |
| Base Clock | 100 MHz | 100 MHz |
| Multiplier | 23.0x | 25.0x |
| Multiplier Unlocked | Yes | Yes |
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 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| L1 Cache | 64 KB | 80 KB |
| L2 Cache | 1 MB | 1 MB |
| L3 Cache | 128 MB | 128 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 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| Socket | AMD Socket FL1 | AMD Socket FL1 |
| PCI Express | PCIe 5.0 x28 | PCIe 5.0 x28 |
| Thermal Design Power (TDP) | 55 W | 55 W |
| TJ Max | 100 °C | 100 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Ryzen 9 7945HX3D | Ryzen 9 9955HX3D |
|---|---|---|
| Integrated Graphics | Radeon 610M | 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 | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, AVX-512, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost OD, Precision Boost 2, AMD EXPO |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.