Intel Celeron N2940 | Intel Core i7-8557U | |
CPU comparisonIntel Celeron N2940 or Intel Core i7-8557U - 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 Intel Celeron N2940 has 4 cores with 4 threads and clocks with a maximum frequency of 2.25 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Intel Celeron N2940 was released in Q2/2014. The Intel Core i7-8557U has 4 cores with 8 threads and clocks with a maximum frequency of 4.50 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-8557U was released in Q3/2019. |
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Intel Celeron (165) | Family | Intel Core i7 (298) |
Intel Celeron J1000/N2000 (17) | CPU group | Intel Core i 8000U (8) |
6 | Generation | 8 |
Bay Trail | Architecture | Coffee Lake U |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Celeron N2940 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Celeron N2940 is 1.83 GHz (2.25 GHz) while the Intel Core i7-8557U has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Intel Core i7-8557U is at 1.70 GHz (4.50 GHz). |
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Intel Celeron N2940 | Characteristic | Intel Core i7-8557U |
4 | Cores | 4 |
4 | Threads | 8 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
1.83 GHz | Frequency | 1.70 GHz |
2.25 GHz | Turbo Frequency (1 Core) | 4.50 GHz |
2.25 GHz | Turbo Frequency (All Cores) | 3.40 GHz |
Integrated graphics (iGPU)The Intel Celeron N2940 or Intel Core i7-8557U 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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Intel HD Graphics (Bay Trail GT1) | GPU | Intel Iris Plus Graphics 645 |
0.31 GHz | GPU frequency | 0.30 GHz |
0.85 GHz | GPU (Turbo) | 1.15 GHz |
7 | GPU Generation | 9.5 |
22 nm | Technology | 14 nm |
2 | Max. displays | 3 |
4 | Compute units | 48 |
32 | Shader | 384 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | 32 GB |
11.2 | DirectX Version | 12 |
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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Intel HD Graphics (Bay Trail GT1) | GPU | Intel Iris Plus Graphics 645 |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode / Encode |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Celeron N2940 can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Core i7-8557U supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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Intel Celeron N2940 | Characteristic | Intel Core i7-8557U |
DDR3-1333 | Memory | DDR4-2400 |
8 GB | Max. Memory | 32 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
21.3 GB/s | Max. Bandwidth | 38.4 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 8.00 MB |
2.0 | PCIe version | 3.0 |
4 | PCIe lanes | 16 |
2.0 GB/s | PCIe Bandwidth | 15.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Celeron N2940 is 7.5 W, while the Intel Core i7-8557U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Celeron N2940 | Characteristic | Intel Core i7-8557U |
7.5 W | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
4.5 W | TDP down | -- |
100 °C | Tjunction max. | -- |
Technical detailsThe Intel Celeron N2940 is manufactured in 22 nm and has 2.00 MB cache. The Intel Core i7-8557U is manufactured in 14 nm and has a 8.00 MB cache. |
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Intel Celeron N2940 | Characteristic | Intel Core i7-8557U |
22 nm | Technology | 14 nm |
Monolithic | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
BGA 1170 | Socket | BGA 1528 |
VT-x, VT-x EPT | Virtualization | VT-x, VT-x EPT, VT-d |
No | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q2/2014 | Release date | Q3/2019 |
-- | Release price | 430 $ |
show more data | show more data | |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
Intel Celeron N2940
Intel HD Graphics (Bay Trail GT1) @ 0.85 GHz |
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Intel Core i7-8557U
Intel Iris Plus Graphics 645 @ 1.15 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 4.50 GHz |
Intel Celeron N2940
4C 4T @ 2.25 GHz |
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Intel Core i7-8557U
4C 8T @ 3.40 GHz |
Devices using this processor |
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Intel Celeron N2940 | Intel Core i7-8557U |
Unknown | Apple MacBook Pro 13 (2019) |