AMD Ryzen 9 7945HX3D | AMD Ryzen 7 8845HS | |
CPU comparisonAMD Ryzen 9 7945HX3D or AMD Ryzen 7 8845HS - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD Ryzen 9 7945HX3D has 16 cores with 32 threads and clocks with a maximum frequency of 5.40 GHz. Up to 64 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7945HX3D was released in Q3/2023. The AMD Ryzen 7 8845HS has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 7 8845HS was released in Q1/2024. |
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AMD Ryzen 9 (40) | Family | AMD Ryzen 7 (70) |
AMD Ryzen 7045 (6) | CPU group | AMD Ryzen 8040 (20) |
6 | Generation | 7 |
Dragon Range (Zen 4) | Architecture | Hawk Point (Zen 4) |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 7945HX3D has 16 CPU cores and can calculate 32 threads in parallel. The clock frequency of the AMD Ryzen 9 7945HX3D is 2.30 GHz (5.40 GHz) while the AMD Ryzen 7 8845HS has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 7 8845HS is at 3.80 GHz (5.10 GHz). |
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AMD Ryzen 9 7945HX3D | Characteristic | AMD Ryzen 7 8845HS |
16 | Cores | 8 |
32 | Threads | 16 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
2.30 GHz | Frequency | 3.80 GHz |
5.40 GHz | Turbo Frequency (1 Core) | 5.10 GHz |
-- | Turbo Frequency (All Cores) | 4.25 GHz |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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AMD Ryzen 9 7945HX3D | Characteristic | AMD Ryzen 7 8845HS |
-- | AI hardware | AMD Ryzen™ AI |
-- | AI specifications | AMD Ryzen™ AI (XDNA) @ 16 TOPS |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The AMD Ryzen 9 7945HX3D or AMD Ryzen 7 8845HS has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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AMD Radeon 610M | GPU | AMD Radeon 780M |
0.40 GHz | GPU frequency | 0.80 GHz |
2.20 GHz | GPU (Turbo) | 2.70 GHz |
9 | GPU Generation | 3 |
6 nm | Technology | 4 nm |
3 | Max. displays | 4 |
2 | Compute units | 12 |
128 | Shader | 768 |
Yes | Hardware Raytracing | Yes |
No | Frame Generation | AMD FSR |
8 GB | Max. GPU Memory | 32 GB |
12 | DirectX Version | 12 |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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AMD Radeon 610M | GPU | AMD Radeon 780M |
Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
Decode / Encode | Codec VP9 | Decode |
Decode / Encode | Codec VP8 | Decode |
Decode | Codec AV1 | Decode / Encode |
Decode / Encode | Codec AVC | Decode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 9 7945HX3D can use up to 64 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The AMD Ryzen 7 8845HS supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 120.0 GB/s. |
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AMD Ryzen 9 7945HX3D | Characteristic | AMD Ryzen 7 8845HS |
DDR5-5200 | Memory | DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 |
64 GB | Max. Memory | 256 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
83.2 GB/s | Max. Bandwidth | 120.0 GB/s |
No | ECC | Yes |
16.00 MB | L2 Cache | 8.00 MB |
128.00 MB | L3 Cache | 16.00 MB |
5.0 | PCIe version | 4.0 |
28 | PCIe lanes | 20 |
110.3 GB/s | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 7945HX3D is 55 W, while the AMD Ryzen 7 8845HS has a TDP of 45 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 9 7945HX3D | Characteristic | AMD Ryzen 7 8845HS |
55 W | TDP (PL1 / PBP) | 45 W |
-- | TDP (PL2) | -- |
75 W | TDP up | 54 W |
-- | TDP down | 35 W |
89 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 9 7945HX3D is manufactured in 5 nm and has 144.00 MB cache. The AMD Ryzen 7 8845HS is manufactured in 4 nm and has a 24.00 MB cache. |
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AMD Ryzen 9 7945HX3D | Characteristic | AMD Ryzen 7 8845HS |
5 nm | Technology | 4 nm |
Chiplet | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
FL1 | Socket | FP8 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q3/2023 | Release date | Q1/2024 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7945HX3D
AMD Radeon 610M @ 2.20 GHz |
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AMD Ryzen 7 8845HS
AMD Radeon 780M @ 2.70 GHz |
AMD Ryzen 9 7945HX3D
33,450 CB R23 MC @ 104 W |
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AMD Ryzen 7 8845HS
15,930 CB R23 MC @ 55 W |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 3.80 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 5.40 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7945HX3D
16C 32T @ 2.30 GHz |
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AMD Ryzen 7 8845HS
8C 16T @ 3.80 GHz |
Devices using this processor |
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AMD Ryzen 9 7945HX3D | AMD Ryzen 7 8845HS |
ASUS ROG Strix SCAR 17 X3D | Unknown |