AMD EPYC 7773X | AMD Phenom II X4 820 | |
CPU comparisonAMD EPYC 7773X or AMD Phenom II X4 820 - 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 EPYC 7773X has 64 cores with 128 threads and clocks with a maximum frequency of 3.50 GHz. Up to 4096 GB of memory is supported in 8 memory channels. The AMD EPYC 7773X was released in Q2/2022. The AMD Phenom II X4 820 has 4 cores with 4 threads and clocks with a maximum frequency of 2.80 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X4 820 was released in Q3/2009. |
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AMD EPYC (129) | Family | AMD Phenom II (52) |
AMD EPYC 7003 (29) | CPU group | AMD Phenom II - 800/900 (23) |
3 | Generation | 4 |
Milan (Zen 3) | Architecture | Deneb (K10) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 7773X has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD EPYC 7773X is 2.20 GHz (3.50 GHz) while the AMD Phenom II X4 820 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Phenom II X4 820 is at 2.80 GHz. |
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AMD EPYC 7773X | Characteristic | AMD Phenom II X4 820 |
64 | Cores | 4 |
128 | Threads | 4 |
normal | Core architecture | normal |
Yes | Hyperthreading | No |
No | Overclocking ? | Yes |
2.20 GHz | Frequency | 2.80 GHz |
3.50 GHz | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD EPYC 7773X can use up to 4096 GB of memory in 8 memory channels. The maximum memory bandwidth is 204.8 GB/s. The AMD Phenom II X4 820 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 EPYC 7773X | Characteristic | AMD Phenom II X4 820 |
DDR4-3200 | Memory | DDR3-1333, DDR2-1066 |
4096 GB | Max. Memory | |
8 (Octa Channel) | Memory channels | 2 (Dual Channel) |
204.8 GB/s | Max. Bandwidth | 21.3 GB/s |
Yes | ECC | No |
32.00 MB | L2 Cache | -- |
768.00 MB | L3 Cache | 4.00 MB |
4.0 | PCIe version | -- |
128 | PCIe lanes | -- |
252.0 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 7773X is 280 W, while the AMD Phenom II X4 820 has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD EPYC 7773X | Characteristic | AMD Phenom II X4 820 |
280 W | TDP (PL1 / PBP) | 95 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
225 W | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD EPYC 7773X is manufactured in 7 nm and has 800.00 MB cache. The AMD Phenom II X4 820 is manufactured in 45 nm and has a 4.00 MB cache. |
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AMD EPYC 7773X | Characteristic | AMD Phenom II X4 820 |
7 nm | Technology | 45 nm |
Chiplet | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE3, SSE4a |
SP3 | Socket | AM3 |
AMD-V, SVM | Virtualization | AMD-V |
Yes | AES-NI | No |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q2/2022 | Release date | Q3/2009 |
8800 $ | Release price | -- |
show more data | show more data | |
AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 3.50 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
AMD EPYC 7773X
64C 128T @ 2.20 GHz |
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AMD Phenom II X4 820
4C 4T @ 2.80 GHz |
Devices using this processor |
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AMD EPYC 7773X | AMD Phenom II X4 820 |
Unknown | Unknown |