AMD Phenom II X2 550 | AMD Phenom II X2 521 | |
CPU comparisonAMD Phenom II X2 550 or AMD Phenom II X2 521 - 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 Phenom II X2 550 has 2 cores with 2 threads and clocks with a maximum frequency of 3.10 GHz. Up to GB of memory is supported in 2 memory channels. The AMD Phenom II X2 550 was released in Q4/2009. The AMD Phenom II X2 521 has 2 cores with 2 threads and clocks with a maximum frequency of 3.50 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X2 521 was released in Q2/2011. |
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AMD Phenom II (52) | Family | AMD Phenom II (52) |
AMD Phenom II - 545 (9) | CPU group | AMD Phenom II - 500 (2) |
2 | Generation | 1 |
Callisto (K10) | Architecture | Regor (K10) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Phenom II X2 550 has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the AMD Phenom II X2 550 is 3.10 GHz while the AMD Phenom II X2 521 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD Phenom II X2 521 is at 3.50 GHz. |
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AMD Phenom II X2 550 | Characteristic | AMD Phenom II X2 521 |
2 | Cores | 2 |
2 | Threads | 2 |
normal | Core architecture | normal |
No | Hyperthreading | No |
Yes | Overclocking ? | Yes |
3.10 GHz | Frequency | 3.50 GHz |
-- | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD Phenom II X2 550 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The AMD Phenom II X2 521 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s. |
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AMD Phenom II X2 550 | Characteristic | AMD Phenom II X2 521 |
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 | -- |
6.00 MB | L3 Cache | 2.00 MB |
-- | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Phenom II X2 550 is 80 W, while the AMD Phenom II X2 521 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 Phenom II X2 550 | Characteristic | AMD Phenom II X2 521 |
80 W | TDP (PL1 / PBP) | 65 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD Phenom II X2 550 is manufactured in 45 nm and has 6.00 MB cache. The AMD Phenom II X2 521 is manufactured in 45 nm and has a 2.00 MB cache. |
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AMD Phenom II X2 550 | Characteristic | AMD Phenom II X2 521 |
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 |
Q4/2009 | Release date | Q2/2011 |
-- | Release price | 35 $ |
show more data | show more data | |
AMD Phenom II X2 550
2C 2T @ 3.10 GHz |
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
AMD Phenom II X2 550
2C 2T @ 3.10 GHz |
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
AMD Phenom II X2 550
2C 2T @ 3.10 GHz |
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
AMD Phenom II X2 550
2C 2T @ 3.10 GHz |
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
AMD Phenom II X2 550
2C 2T @ 3.10 GHz |
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
AMD Phenom II X2 550
2C 2T @ 3.10 GHz |
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
Devices using this processor |
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AMD Phenom II X2 550 | AMD Phenom II X2 521 |
Unknown | Unknown |