AMD Ryzen 7 5800X3D | AMD Ryzen 5 PRO 5645 | |
CPU comparisonAMD Ryzen 7 5800X3D or AMD Ryzen 5 PRO 5645 - 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 5800X3D has 8 cores with 16 threads and clocks with a maximum frequency of 4.50 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 5800X3D was released in Q4/2020. The AMD Ryzen 5 PRO 5645 has 6 cores with 12 threads and clocks with a maximum frequency of 4.60 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The AMD Ryzen 5 PRO 5645 was released in Q3/2022. |
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AMD Ryzen 7 (70) | Family | AMD Ryzen 5 (86) |
AMD Ryzen 5000 (14) | CPU group | AMD Ryzen 5000U (13) |
4 | Generation | 4 |
Vermeer (Zen 3) | Architecture | Cezanne (Zen 3) |
Desktop / Server | Segment | Mobile |
-- | Predecessor | -- |
AMD Ryzen 7 7800X3D | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 7 5800X3D has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 5800X3D is 3.40 GHz (4.50 GHz) while the AMD Ryzen 5 PRO 5645 has 6 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 5 PRO 5645 is at 3.70 GHz (4.60 GHz). |
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AMD Ryzen 7 5800X3D | Characteristic | AMD Ryzen 5 PRO 5645 |
8 | Cores | 6 |
16 | Threads | 12 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | Yes |
3.40 GHz | Frequency | 3.70 GHz |
4.50 GHz | Turbo Frequency (1 Core) | 4.60 GHz |
4.20 GHz | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD Ryzen 7 5800X3D can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD Ryzen 5 PRO 5645 supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s. |
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AMD Ryzen 7 5800X3D | Characteristic | AMD Ryzen 5 PRO 5645 |
DDR4-3200 | Memory | LPDDR4-4266, DDR4-3200 |
128 GB | Max. Memory | 64 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
51.2 GB/s | Max. Bandwidth | 51.2 GB/s |
Yes | ECC | No |
4.00 MB | L2 Cache | 3.00 MB |
96.00 MB | L3 Cache | 32.00 MB |
4.0 | PCIe version | 4.0 |
20 | PCIe lanes | -- |
39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 7 5800X3D is 105 W, while the AMD Ryzen 5 PRO 5645 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 7 5800X3D | Characteristic | AMD Ryzen 5 PRO 5645 |
105 W | TDP (PL1 / PBP) | 65 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
90 °C | Tjunction max. | 95 °C |
Technical detailsThe AMD Ryzen 7 5800X3D is manufactured in 7 nm and has 100.00 MB cache. The AMD Ryzen 5 PRO 5645 is manufactured in 7 nm and has a 35.00 MB cache. |
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AMD Ryzen 7 5800X3D | Characteristic | AMD Ryzen 5 PRO 5645 |
7 nm | Technology | 7 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, AVX2, FMA3 |
AM4 (PGA 1331) | Socket | AM4 (PGA 1331) |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q4/2020 | Release date | Q3/2022 |
449 $ | Release price | -- |
show more data | show more data | |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz |
AMD Ryzen 7 5800X3D
15,125 CB R23 MC @ 96 W |
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AMD Ryzen 5 PRO 5645
3.70 GHz |
Devices using this processor |
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AMD Ryzen 7 5800X3D | AMD Ryzen 5 PRO 5645 |
Unknown | Unknown |