AMD Ryzen 9 7900 | AMD Ryzen 7 PRO 7840HS | |
CPU comparisonAMD Ryzen 9 7900 or AMD Ryzen 7 PRO 7840HS - 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 7900 has 12 cores with 24 threads and clocks with a maximum frequency of 5.40 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7900 was released in Q1/2023. The AMD Ryzen 7 PRO 7840HS 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 PRO 7840HS was released in Q2/2023. |
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AMD Ryzen 9 (37) | Family | AMD Ryzen 7 PRO (21) |
AMD Ryzen 7000 (14) | CPU group | AMD Ryzen 7040 (21) |
6 | Generation | 6 |
Raphael (Zen 4) | Architecture | Phoenix (Zen 4) |
Desktop / Server | Segment | Mobile |
AMD Ryzen 9 5900 | Predecessor | -- |
-- | Successor | AMD Ryzen 7 PRO 8840HS |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 7900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 7900 is 3.70 GHz (5.40 GHz) while the AMD Ryzen 7 PRO 7840HS has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 7 PRO 7840HS is at 3.80 GHz (5.10 GHz). |
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AMD Ryzen 9 7900 | Characteristic | AMD Ryzen 7 PRO 7840HS |
12 | Cores | 8 |
24 | Threads | 16 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
3.70 GHz | Frequency | 3.80 GHz |
5.40 GHz | Turbo Frequency (1 Core) | 5.10 GHz |
4.70 GHz | Turbo Frequency (All Cores) | 4.25 GHz |
Artificial Intelligence and Machine LearningProcessors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor. |
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AMD Ryzen 9 7900 | Characteristic | AMD Ryzen 7 PRO 7840HS |
-- | AI hardware | AMD Ryzen AI |
-- | AI specifications | AMD dedicated AI XDNA Technology |
Internal GraphicsThe AMD Ryzen 9 7900 or AMD Ryzen 7 PRO 7840HS 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 Graphics (Raphael) | GPU | AMD Radeon 780M |
0.40 GHz | GPU frequency | 0.80 GHz |
2.20 GHz | GPU (Turbo) | 2.70 GHz |
9 | GPU Generation | 3 |
5 nm | Technology | 4 nm |
3 | Max. displays | 4 |
2 | Compute units | 12 |
128 | Shader | 768 |
No | 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 Graphics (Raphael) | 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 7900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The AMD Ryzen 7 PRO 7840HS 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 7900 | Characteristic | AMD Ryzen 7 PRO 7840HS |
DDR5-5200 | Memory | DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 |
128 GB | Max. Memory | 256 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
83.2 GB/s | Max. Bandwidth | 120.0 GB/s |
Yes | ECC | Yes |
12.00 MB | L2 Cache | 8.00 MB |
64.00 MB | L3 Cache | 16.00 MB |
5.0 | PCIe version | 4.0 |
24 | PCIe lanes | 20 |
94.5 GB/s | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 7900 is 65 W, while the AMD Ryzen 7 PRO 7840HS has a TDP of 54 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 9 7900 | Characteristic | AMD Ryzen 7 PRO 7840HS |
65 W | TDP (PL1 / PBP) | 54 W |
88 W | TDP (PL2) | -- |
170 W | TDP up | -- |
-- | TDP down | 35 W |
95 °C | Tjunction max. | 100 °C |
Technical detailsThe AMD Ryzen 9 7900 is manufactured in 5 nm and has 76.00 MB cache. The AMD Ryzen 7 PRO 7840HS is manufactured in 4 nm and has a 24.00 MB cache. |
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AMD Ryzen 9 7900 | Characteristic | AMD Ryzen 7 PRO 7840HS |
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 |
AM5 (LGA 1718) | 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 |
Q1/2023 | Release date | Q2/2023 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7900
AMD Radeon Graphics (Raphael) @ 2.20 GHz |
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AMD Ryzen 7 PRO 7840HS
AMD Radeon 780M @ 2.70 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 5.10 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 4.25 GHz |
AMD Ryzen 9 7900
28,905 CB R23 MC @ 90 W |
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AMD Ryzen 7 PRO 7840HS
3.80 GHz |
AMD Ryzen 9 7900
12C 24T @ 3.70 GHz |
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AMD Ryzen 7 PRO 7840HS
8C 16T @ 3.80 GHz |
Devices using this processor |
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AMD Ryzen 9 7900 | AMD Ryzen 7 PRO 7840HS |
Unknown | Unknown |