AMD A4-3320M | AMD EPYC 7643 | |
CPU comparisonAMD A4-3320M or AMD EPYC 7643 - 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 A4-3320M has 2 cores with 2 threads and clocks with a maximum frequency of 2.60 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A4-3320M was released in Q4/2011. The AMD EPYC 7643 has 48 cores with 96 threads and clocks with a maximum frequency of 3.60 GHz. The CPU supports up to 4096 GB of memory in 8 memory channels. The AMD EPYC 7643 was released in Q1/2021. |
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AMD A (112) | Family | AMD EPYC (129) |
AMD A4-3000M (5) | CPU group | AMD EPYC 7003 (29) |
1 | Generation | 3 |
Llano (K10) | Architecture | Milan (Zen 3) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | AMD EPYC 7642 |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD A4-3320M has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the AMD A4-3320M is 2.00 GHz (2.60 GHz) while the AMD EPYC 7643 has 48 CPU cores and 96 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7643 is at 2.30 GHz (3.60 GHz). |
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AMD A4-3320M | Characteristic | AMD EPYC 7643 |
2 | Cores | 48 |
2 | Threads | 96 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
Yes | Overclocking ? | No |
2.00 GHz | Frequency | 2.30 GHz |
2.60 GHz | Turbo Frequency (1 Core) | 3.60 GHz |
2.60 GHz | Turbo Frequency (All Cores) | 3.40 GHz |
Internal GraphicsThe AMD A4-3320M or AMD EPYC 7643 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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AMD Radeon HD 6480G | GPU | no iGPU |
0.44 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
3 | GPU Generation | -- |
32 nm | Technology | |
2 | Max. displays | |
3 | Compute units | -- |
240 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
1 GB | Max. GPU Memory | -- |
11 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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AMD Radeon HD 6480G | GPU | no iGPU |
No | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
Decode | Codec h264 | No |
No | Codec VP9 | No |
No | Codec VP8 | No |
No | Codec AV1 | No |
Decode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe AMD A4-3320M can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The AMD EPYC 7643 supports up to 4096 GB of memory in 8 memory channels and achieves a memory bandwidth of up to 204.8 GB/s. |
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AMD A4-3320M | Characteristic | AMD EPYC 7643 |
DDR3-1333 | Memory | DDR4-3200 |
Max. Memory | 4096 GB | |
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
21.3 GB/s | Max. Bandwidth | 204.8 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 256.00 MB |
-- | PCIe version | 4.0 |
-- | PCIe lanes | 128 |
-- | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD A4-3320M is 35 W, while the AMD EPYC 7643 has a TDP of 240 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD A4-3320M | Characteristic | AMD EPYC 7643 |
35 W | TDP (PL1 / PBP) | 240 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | 225 W |
-- | Tjunction max. | -- |
Technical detailsThe AMD A4-3320M is manufactured in 32 nm and has 2.00 MB cache. The AMD EPYC 7643 is manufactured in 7 nm and has a 256.00 MB cache. |
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AMD A4-3320M | Characteristic | AMD EPYC 7643 |
32 nm | Technology | 7 nm |
Unknown | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE3, SSE4a | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
FS1 | Socket | SP3 |
AMD-V | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Operating systems | Windows 10, Linux | |
Q4/2011 | Release date | Q1/2021 |
-- | Release price | 4995 $ |
show more data | show more data | |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.60 GHz |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.60 GHz |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.60 GHz |
AMD A4-3320M
2C 2T @ 2.60 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
AMD A4-3320M
AMD Radeon HD 6480G @ 0.44 GHz |
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AMD EPYC 7643
@ 0.00 GHz |
Devices using this processor |
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AMD A4-3320M | AMD EPYC 7643 |
Unknown | Unknown |