AMD Phenom II X4 840 | AMD Phenom II X2 545 | |
CPU comparisonIn this CPU comparison, we compare the AMD Phenom II X4 840 and the AMD Phenom II X2 545 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 Phenom II X2 545 which has 2 CPU cores and was introduced in Q2/2009. |
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AMD Phenom II (52) | Family | AMD Phenom II (52) |
AMD Phenom II - 840/850 (2) | CPU group | AMD Phenom II - 545 (9) |
5 | Generation | 2 |
Propus | Architecture | Callisto (K10) |
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 Phenom II X2 545 clocks with 3.00 GHz, has 2 CPU cores and can calculate 2 threads in parallel. |
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AMD Phenom II X4 840 | Characteristic | AMD Phenom II X2 545 |
4 | Cores | 2 |
4 | Threads | 2 |
normal | Core architecture | normal |
No | Hyperthreading | No |
Yes | Overclocking ? | Yes |
3.20 GHz | Frequency | 3.00 GHz |
-- | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
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 Phenom II X2 545 supports a maximum of GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled. |
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AMD Phenom II X4 840 | Characteristic | AMD Phenom II X2 545 |
DDR3-1333, DDR2-1066 | Memory | DDR3-1333, DDR2-1066 |
Max. Memory | ||
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
21.3 GB/s | Max. Bandwidth | 21.3 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 6.00 MB |
-- | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe AMD Phenom II X4 840 has a TDP of 95 W. The TDP of the AMD Phenom II X2 545 is 80 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 Phenom II X2 545 |
95 W | TDP (PL1 / PBP) | 80 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD Phenom II X4 840 has 2.00 MB cache and is manufactured in 45 nm. The cache of AMD Phenom II X2 545 is at 6.00 MB. The processor is manufactured in 45 nm. |
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AMD Phenom II X4 840 | Characteristic | AMD Phenom II X2 545 |
45 nm | Technology | 45 nm |
Unknown | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE3, SSE4a | ISA extensions | SSE3, SSE4a |
AM3 | Socket | AM3 |
AMD-V | Virtualization | AMD-V |
No | AES-NI | No |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q1/2011 | Release date | Q2/2009 |
-- | Release price | 65 $ |
show more data | show more data | |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Phenom II X2 545
2C 2T @ 3.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Phenom II X2 545
2C 2T @ 3.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Phenom II X2 545
2C 2T @ 3.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Phenom II X2 545
2C 2T @ 3.00 GHz |
AMD Phenom II X4 840
4C 4T @ 3.20 GHz |
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AMD Phenom II X2 545
2C 2T @ 3.00 GHz |
Devices using this processor |
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AMD Phenom II X4 840 | AMD Phenom II X2 545 |
Unknown | Unknown |