Performance
Core i9-12900HX11% better
22,97262% of 36,991
Ryzen 5 7645HX
20,72656% of 36,991
The Core i9-12900HX has 11% better performance than the Ryzen 5 7645HX for the 3DMark 11 Performance Physics benchmark.
Performance per dollar
Core i9-12900HX
37.9131% of 121.53
Ryzen 5 7645HX
No data available
The Core i9-12900HX has 31% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: Intel Core i5-13400F.
Shop Core i9-12900HX
Shop Ryzen 5 7645HX
As an Amazon Associate I earn from qualifying purchases.
Summary
#
About the Intel Core i9-12900HX CPU
The Intel Core i9-12900HX is a 16-core (24-thread) processor built for the mobile CPU market. It launched in Q2 2022 with a suggested retail price of $606. It is part of Intel's Core i9 lineup, which is based on the Alder Lake-HX microarchitecture. The i9-12900HX is compatible with Intel BGA 1964 motherboards and is fabricated on Intel's 10 nm manufacturing process. It features the UHD Graphics 770 integrated graphics solution.
Memory and Cache
The Core i9-12900HX supports DDR4-3200, DDR5-4800 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Core i9-12900HX 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 1.25 MB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 30 MB.
Cores and Clock Speeds
The Core i9-12900HX features 16 total cores which can process 24 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The 16 cores consist of 8 P-Cores and 8 E-Cores. P-Cores are designed for high-performance tasks and E-Cores are intended for efficiency and lighter tasks. The base clock speed of the CPU is 2.3 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 unlocked, enabling overclocking for those seeking to push the CPU's performance further.
Integrated Graphics
The Core i9-12900HX includes an integrated graphics solution called UHD Graphics 770. 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 & Value
The Core i9-12900HX has the 46th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 62.10% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 22,972 score and $606 launch price (MSRP) gives it a performance per dollar of 37.91. This is the 87th best in value for the 3DMark 11 Perf. Physics benchmark.
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.
General Info
General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| Manufacturer | Intel | AMD |
| Series | Core i9 | Ryzen 5 |
| Market Segment | Mobile | Mobile |
| Release Date | Q2 2022 | Q1 2023 |
| Launch Price (MSRP) | $606 | -- |
| Production Status | Active | Active |
| Shop | Check Price | Check Price |
Benchmark Performance
#
Performance
Core i9-12900HX11% better
22,97262% of 36,991
Ryzen 5 7645HX
20,72656% of 36,991
The Core i9-12900HX has 11% better performance than the Ryzen 5 7645HX for the 3DMark 11 Performance Physics benchmark.
The Core i9-12900HX is ranked 46th with a score of 22,972, and the Ryzen 5 7645HX is ranked 65th with a score of 20,726.
Performance per dollar
Core i9-12900HX
37.9131% of 121.53
Ryzen 5 7645HX
No data available
The Core i9-12900HX has 72% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: AMD Ryzen 9 7950X3D.
Core i9-12900HX's 37.91 performance per dollar ranks it 87th among the other benchmarked CPUs in our database.
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:Core i9-12900HX or
| CPU | Benchmark Performance | |
|---|---|---|
| Core i7-13705H | 23,213.5 | +1% |
| Core i9-12950HX | 23,129 | +1% |
| Core i9-12900HX | 22,972 | |
| Core i7-12800HX | 22,373 | -3% |
| Core i9-13900H | 22,343 | -3% |
| Core i7-12700H | 21,706 | -6% |
| Ryzen 7 7840S | 20,801 | -9% |
| Ryzen 5 7645HX | 20,726 | -10% |
| Core i5-13500H | 20,615 | -10% |
| Core Ultra 7 155H | 20,611 | -10% |
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:Core i9-12900HX orRyzen 5 7645HX
| CPU | Performance Per Dollar | |
|---|---|---|
| Core i7-11850H | 40.9 | +8% |
| Core i7-13700H | 40.84 | +8% |
| Core i7-13620H | 40.81 | +8% |
| Core i9-13950HX | 40.61 | +7% |
| Core i9-12950HX | 39.2 | +3% |
| Core i9-12900HX | 37.91 | |
| Core i9-13980HX | 37.5 | -1% |
| Core i7-1370P | 37.17 | -2% |
| Core i7-10875H | 36.94 | -3% |
| Core i9-13900H | 36.21 | -4% |
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 | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| 3DMark 11 Performance Physics | 22,972 (+10.84%) | 20,726 |
| 3DMark Time Spy CPU | 14,895 (+73.18%) | 8,601 |
| Cinebench R15 Multi-Core | 3,566 (+56.68%) | 2,276 |
| Cinebench R15 Single-Core | 278 | 289 (+3.96%) |
| Geekbench 6.2 Multi-Core | -- | 11,717 |
| Geekbench 6.2 Single-Core | -- | 2,717 |
| CPU Mark Multi-Thread | 34,268 (+27.54%) | 26,868 |
| CPU Mark Single-Thread | 3,835 | 3,915 (+2.09%) |
Benchmarks Source: Notebookcheck
Technical Specs
#
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| Manufacturer | Intel | AMD |
| Foundry | Intel | TSMC |
| Process Size | 10 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 | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| Series | Core i9 | Ryzen 5 |
| Microarchitecture | Alder Lake-HX | Zen 4 |
| Codename | Alder Lake-HX | Dragon Range |
| Memory Support | DDR4-3200, DDR5-4800 | 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 | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| Cores | 16 | 6 |
| Threads | 24 | 12 |
| Performance Cores (P-cores) | 8 | -- |
| Efficient Cores (E-cores) | 8 | -- |
| Clock Speed | 2.3 GHz | 4.0 GHz |
| Turbo Clock | 5.0 GHz | 5.0 GHz |
| P-core Clock | 2.3 GHz | -- |
| P-core Turbo Clock | 5.0 GHz | -- |
| E-core Clock Speed | 1700.0 MHz | -- |
| E-core Turbo Clock | 3.6 GHz | -- |
| Base Clock | 100 MHz | 100 MHz |
| Multiplier | 23.0x | 40.0x |
| Multiplier Unlocked | Yes | 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 | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| L1 Cache | 80 KB | 64 KB |
| L2 Cache | 1.25 MB | 1 MB |
| L3 Cache | 30 MB | 32 MB |
| E-core L1 Cache | 96 KB | -- |
| E-core L2 Cache | 2 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 | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| Socket | Intel BGA 1964 | AMD Socket FL1 |
| PCI Express | PCIe 5.0 x20 | PCIe 5.0 x28 |
| Thermal Design Power (TDP) | 55 W | 45 W |
| Power Limit 1 (PL1) | 55 W | -- |
| Power Limit 2 (PL2) | 157 W | -- |
| Tcase Max | 72 °C | -- |
| TJ Max | 100 °C | 100 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Core i9-12900HX | Ryzen 5 7645HX |
|---|---|---|
| Integrated Graphics | UHD Graphics 770 | Radeon 610M |
| Extensions / Technologies | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, AVX2, FMA3, SHA, EIST, Intel 64, XD bit, VT-x, VT-d, AES-NI, TSX, TXT, CLMUL, F16C, BMI1, BMI2, ABM, ADX, RdRand, TBT 2.0, TBT 3.0 | 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 |
Check out these comparisons for similar CPUs:
Looking for alternatives? Check out these similar CPUs:
* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.