AMD Phenom II X4 840 | AMD Ryzen 7 1800X | |
CPU comparisonIn this CPU comparison, we compare the AMD Phenom II X4 840 and the AMD Ryzen 7 1800X and use benchmarks to check which processor is faster.
We compare the AMD Phenom II X4 840 4 core processor released in Q1/2011 with the AMD Ryzen 7 1800X which has 8 CPU cores and was introduced in Q1/2017. |
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AMD Phenom II (52) | Family | AMD Ryzen 7 (70) |
AMD Phenom II - 840/850 (2) | CPU group | AMD Ryzen 1000 (15) |
5 | Generation | 1 |
Propus | Architecture | Summit Ridge (Zen) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Phenom II X4 840 is a 4 core processor with a clock frequency of 3.20 GHz. The processor can compute 4 threads at the same time. The AMD Ryzen 7 1800X clocks with 3.60 GHz (4.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel. |
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AMD Phenom II X4 840 | Characteristic | AMD Ryzen 7 1800X |
4 | Cores | 8 |
4 | Threads | 16 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
Yes | Overclocking ? | Yes |
3.20 GHz | Frequency | 3.60 GHz |
-- | Turbo Frequency (1 Core) | 4.00 GHz |
-- | Turbo Frequency (All Cores) | 3.80 GHz |
Memory & PCIeUp to GB of memory in a maximum of 2 memory channels is supported by the AMD Phenom II X4 840, while the AMD Ryzen 7 1800X supports a maximum of 64 GB of memory with a maximum memory bandwidth of 42.7 GB/s enabled. |
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AMD Phenom II X4 840 | Characteristic | AMD Ryzen 7 1800X |
DDR3-1333, DDR2-1066 | Memory | DDR4-2666 |
Max. Memory | 64 GB | |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
21.3 GB/s | Max. Bandwidth | 42.7 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 16.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 20 |
-- | PCIe Bandwidth | 19.7 GB/s |
Thermal ManagementThe AMD Phenom II X4 840 has a TDP of 95 W. The TDP of the AMD Ryzen 7 1800X is 95 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD Phenom II X4 840 | Characteristic | AMD Ryzen 7 1800X |
95 W | TDP (PL1 / PBP) | 95 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 95 °C |
Technical detailsThe AMD Phenom II X4 840 has 2.00 MB cache and is manufactured in 45 nm. The cache of AMD Ryzen 7 1800X is at 16.00 MB. The processor is manufactured in 14 nm. |
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AMD Phenom II X4 840 | Characteristic | AMD Ryzen 7 1800X |
45 nm | Technology | 14 nm |
Unknown | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE3, SSE4a | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
AM3 | Socket | AM4 (PGA 1331) |
AMD-V | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q1/2011 | Release date | Q1/2017 |
-- | Release price | 450 $ |
show more data | show more data | |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 4.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.80 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Ryzen 7 1800X
8C 16T @ 3.60 GHz |
Devices using this processor |
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AMD Phenom II X4 840 | AMD Ryzen 7 1800X |
Unknown | Unknown |