AMD Phenom II X2 521 vs Intel Celeron 3755U
Last updated:
CPU comparison with benchmarks
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| AMD Phenom II X2 521 | Intel Celeron 3755U | |
CPU comparisonAMD Phenom II X2 521 or Intel Celeron 3755U - 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 521 has 2 cores with 2 threads and clocks with a maximum frequency of 3.50 GHz. Up to GB of memory is supported in 2 memory channels. The AMD Phenom II X2 521 was released in Q2/2011. The Intel Celeron 3755U has 2 cores with 2 threads and clocks with a maximum frequency of 1.70 GHz. The CPU supports up to GB of memory in 2 memory channels. The Intel Celeron 3755U was released in Q1/2015. |
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| AMD Phenom II | Family | Intel Celeron |
| AMD Phenom II - 500 | CPU group | Intel Celeron 3000 |
| 1 | Generation | 7 |
| Regor (K10) | Architecture | Kaby Lake U |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Phenom II X2 521 or Intel Celeron 3755U has %%kerne%% CPU cores and can calculate %%threads%% threads in parallel. The clock frequency of the AMD Phenom II X2 521 or Intel Celeron 3755U is %%core_freq_1%%. The number of CPU cores greatly affects the speed of the processor and is an important performance indicator. |
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| 2 | Cores | 2 |
| 2 | Threads | 2 |
| normal | Core architecture | normal |
| No | Hyperthreading | No |
| Yes | Overclocking ? | No |
| 3.50 GHz | Frequency | 1.70 GHz |
| -- | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe AMD Phenom II X2 521 or Intel Celeron 3755U has integrated graphics, called iGPU for short. Specifically, the AMD Phenom II X2 521 or Intel Celeron 3755U uses the %%gpu_name%%, which has %%gpu_shader%% texture shaders and %%gpu_eus%% execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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| no iGPU | GPU | Intel HD Graphics (Broadwell GT1) |
| GPU frequency | 0.10 GHz | |
| GPU (Turbo) | 0.80 GHz | |
| GPU Generation | 8 | |
| Technology | 14 nm | |
| Max. displays | 3 | |
| Execution units | 12 | |
| Shader | 96 | |
| Max. GPU Memory | 2 GB | |
| DirectX Version | 11.2 | |
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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| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| No | Codec h264 | Decode / Encode |
| No | Codec VP9 | No |
| No | Codec VP8 | Decode |
| No | Codec AV1 | No |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode |
Memory & PCIeThe processor can use up to %%memory_max%% memory in %%memory_channels%% memory channels. The maximum memory bandwidth is %%memory_bandwidth%%. The memory type as well as the amount of memory can greatly affect the speed of the system. |
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| DDR2-1066, DDR3-1333 | Memory | DDR3-1600 |
| Max. Memory | ||
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| -- | Bandwidth | -- |
| No | ECC | No |
| L2 Cache | ||
| 2.00 MB | L3 Cache | 2.00 MB |
| PCIe version | 2.0 | |
| PCIe lanes | 12 | |
Thermal ManagementThe thermal design power (TDP for short) of the processor is %%tdp%%. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. The TDP usually gives a rough idea of the actual power consumption of the CPU. |
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| 65 W | TDP (PL1 / PBP) | 15 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe AMD Phenom II X2 521 or Intel Celeron 3755U is made in %%fertigung%%. The smaller the manufacturing process of a CPU, the more modern and energy-efficient it is. Overall, the processor has %%cache%% cache. A large cache can greatly speed up the processor's speed in some cases such as games. |
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| 45 nm | Technology | 14 nm |
| Unknown | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE3, SSE4a | ISA extensions | SSE4.1, SSE4.2 |
| AM3 | Socket | BGA 1168 |
| AMD-V | Virtualization | VT-x, VT-x EPT, VT-d |
| No | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q2/2011 | Release date | Q1/2015 |
| 35 $ | Release price | -- |
| show more data | show more data | |
2C 2T @ 3.50 GHz buy now on Amazon and save!
2C 2T @ 1.70 GHz buy now on Amazon and save!
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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AMD Phenom II X2 521
@ 0.00 GHz |
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Intel Celeron 3755U
Intel HD Graphics (Broadwell GT1) @ 0.80 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Geekbench 3, 64bit (Single-Core)
Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Geekbench 3, 64bit (Multi-Core)
Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Cinebench R11.5, 64bit (Single-Core)
Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Cinebench R11.5, 64bit (Multi-Core)
Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.|
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AMD Phenom II X2 521
2C 2T @ 3.50 GHz |
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Intel Celeron 3755U
2C 2T @ 1.70 GHz |
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Cinebench R11.5, 64bit (iGPU, OpenGL)
Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The iGPU test uses the CPU internal graphic unit to execute OpenGL commands.|
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AMD Phenom II X2 521
@ 0.00 GHz |
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Intel Celeron 3755U
Intel HD Graphics (Broadwell GT1) @ 0.80 GHz |
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Devices using this processor |
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| AMD Phenom II X2 521 | Intel Celeron 3755U |
| Unknown | Unknown |
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