AMD Ryzen 7 5800U | AMD Ryzen 9 7845HX | |
CPU comparisonAMD Ryzen 7 5800U or AMD Ryzen 9 7845HX - 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 7 5800U has 8 cores with 16 threads and clocks with a maximum frequency of 4.40 GHz. Up to 32 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 5800U was released in Q1/2021. The AMD Ryzen 9 7845HX has 12 cores with 24 threads and clocks with a maximum frequency of 5.20 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 7845HX was released in Q1/2023. |
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AMD Ryzen 7 (70) | Family | AMD Ryzen 9 (40) |
AMD Ryzen 5000U (13) | CPU group | AMD Ryzen 7045 (6) |
4 | Generation | 6 |
Cezanne (Zen 3) | Architecture | Dragon Range (Zen 4) |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
AMD Ryzen 7 6800U | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 7 5800U has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 5800U is 1.90 GHz (4.40 GHz) while the AMD Ryzen 9 7845HX has 12 CPU cores and 24 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 9 7845HX is at 3.00 GHz (5.20 GHz). |
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AMD Ryzen 7 5800U | Characteristic | AMD Ryzen 9 7845HX |
8 | Cores | 12 |
16 | Threads | 24 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | Yes |
1.90 GHz | Frequency | 3.00 GHz |
4.40 GHz | Turbo Frequency (1 Core) | 5.20 GHz |
3.40 GHz | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The AMD Ryzen 7 5800U or AMD Ryzen 9 7845HX 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 RX Vega 8 (Renoir) | GPU | AMD Radeon 610M |
0.40 GHz | GPU frequency | 0.40 GHz |
2.00 GHz | GPU (Turbo) | 2.20 GHz |
9 | GPU Generation | 9 |
7 nm | Technology | 6 nm |
3 | Max. displays | 3 |
8 | Compute units | 2 |
512 | Shader | 128 |
No | Hardware Raytracing | Yes |
No | Frame Generation | No |
8 GB | Max. GPU Memory | 8 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 RX Vega 8 (Renoir) | GPU | AMD Radeon 610M |
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 / Encode |
Decode / Encode | Codec VP8 | Decode / Encode |
No | Codec AV1 | Decode |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 7 5800U can use up to 32 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD Ryzen 9 7845HX supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s. |
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AMD Ryzen 7 5800U | Characteristic | AMD Ryzen 9 7845HX |
LPDDR4-4266, DDR4-3200 | Memory | DDR5-5200 |
32 GB | Max. Memory | 128 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
51.2 GB/s | Max. Bandwidth | 83.2 GB/s |
Yes | ECC | Yes |
-- | L2 Cache | 12.00 MB |
16.00 MB | L3 Cache | 64.00 MB |
3.0 | PCIe version | 5.0 |
12 | PCIe lanes | 28 |
11.8 GB/s | PCIe Bandwidth | 110.3 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 7 5800U is 15 W, while the AMD Ryzen 9 7845HX has a TDP of 55 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 7 5800U | Characteristic | AMD Ryzen 9 7845HX |
15 W | TDP (PL1 / PBP) | 55 W |
-- | TDP (PL2) | -- |
25 W | TDP up | 75 W |
10 W | TDP down | 45 W |
105 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 7 5800U is manufactured in 7 nm and has 16.00 MB cache. The AMD Ryzen 9 7845HX is manufactured in 5 nm and has a 76.00 MB cache. |
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AMD Ryzen 7 5800U | Characteristic | AMD Ryzen 9 7845HX |
7 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
FP6 | Socket | FL1 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q1/2021 | Release date | Q1/2023 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 7 5800U
8C 16T @ 4.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
8C 16T @ 4.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
8C 16T @ 4.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
AMD Radeon RX Vega 8 (Renoir) @ 2.00 GHz |
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AMD Ryzen 9 7845HX
AMD Radeon 610M @ 2.20 GHz |
AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
8C 16T @ 4.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 5.20 GHz |
AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
8C 16T @ 1.90 GHz |
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AMD Ryzen 9 7845HX
12C 24T @ 3.00 GHz |
AMD Ryzen 7 5800U
1.90 GHz |
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AMD Ryzen 9 7845HX
26,654 CB R23 MC @ 102 W |
Devices using this processor |
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AMD Ryzen 7 5800U | AMD Ryzen 9 7845HX |
Unknown | Unknown |