Intel Atom Z3745D | Intel Core i9-7940X | |
CPU comparisonIntel Atom Z3745D or Intel Core i9-7940X - 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 Atom Z3745D has 4 cores with 4 threads and clocks with a maximum frequency of 1.83 GHz. Up to 2 GB of memory is supported in 1 memory channels. The Intel Atom Z3745D was released in Q1/2014. The Intel Core i9-7940X has 14 cores with 28 threads and clocks with a maximum frequency of 4.30 GHz. The CPU supports up to 128 GB of memory in 4 memory channels. The Intel Core i9-7940X was released in Q4/2017. |
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Intel Atom (101) | Family | Intel Core i9 (78) |
Intel Atom Z3700 (16) | CPU group | Intel Core i 7000X (9) |
4 | Generation | 7 |
Bay Trail | Architecture | Skylake X |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | Intel Core i9-9940X |
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CPU Cores and Base FrequencyThe Intel Atom Z3745D has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Atom Z3745D is 1.33 GHz (1.83 GHz) while the Intel Core i9-7940X has 14 CPU cores and 28 threads can calculate simultaneously. The clock frequency of the Intel Core i9-7940X is at 3.10 GHz (4.30 GHz). |
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Intel Atom Z3745D | Characteristic | Intel Core i9-7940X |
4 | Cores | 14 |
4 | Threads | 28 |
normal | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | Yes |
1.33 GHz | Frequency | 3.10 GHz |
1.83 GHz | Turbo Frequency (1 Core) | 4.30 GHz |
-- | Turbo Frequency (All Cores) | 3.70 GHz |
Internal GraphicsThe Intel Atom Z3745D or Intel Core i9-7940X 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 | no iGPU |
0.31 GHz | GPU frequency | -- |
0.79 GHz | GPU (Turbo) | -- |
7 | GPU Generation | -- |
22 nm | Technology | |
2 | Max. displays | |
4 | Compute units | -- |
32 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | -- |
11.2 | 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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Intel HD Graphics (Bay Trail GT1) | GPU | no iGPU |
No | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | No |
No | Codec VP9 | No |
No | Codec VP8 | No |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode | Codec JPEG | No |
Memory & PCIeThe Intel Atom Z3745D can use up to 2 GB of memory in 1 memory channels. The maximum memory bandwidth is 10.6 GB/s. The Intel Core i9-7940X supports up to 128 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 85.4 GB/s. |
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Intel Atom Z3745D | Characteristic | Intel Core i9-7940X |
DDR3L-1333 | Memory | DDR4-2666 |
2 GB | Max. Memory | 128 GB |
1 (Single Channel) | Memory channels | 4 (Quad Channel) |
10.6 GB/s | Max. Bandwidth | 85.4 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 19.00 MB |
-- | PCIe version | 3.0 |
-- | PCIe lanes | 44 |
-- | PCIe Bandwidth | 43.3 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Atom Z3745D is 4 W, while the Intel Core i9-7940X has a TDP of 165 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Atom Z3745D | Characteristic | Intel Core i9-7940X |
4 W | TDP (PL1 / PBP) | 165 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
90 °C | Tjunction max. | -- |
Technical detailsThe Intel Atom Z3745D is manufactured in 22 nm and has 2.00 MB cache. The Intel Core i9-7940X is manufactured in 14 nm and has a 19.00 MB cache. |
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Intel Atom Z3745D | Characteristic | Intel Core i9-7940X |
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, AVX-512 |
BGA 1380 | Socket | LGA 2066 |
VT-x, VT-x EPT | Virtualization | VT-x, VT-x EPT, VT-d |
Yes | AES-NI | Yes |
Operating systems | Windows 10, Linux | |
Q1/2014 | Release date | Q4/2017 |
-- | Release price | 1399 $ |
show more data | show more data | |
Intel Atom Z3745D
4C 4T @ 1.83 GHz |
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Intel Core i9-7940X
14C 28T @ 4.30 GHz |
Intel Atom Z3745D
4C 4T @ 1.33 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Atom Z3745D
4C 4T @ 1.83 GHz |
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Intel Core i9-7940X
14C 28T @ 4.30 GHz |
Intel Atom Z3745D
4C 4T @ 1.33 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Atom Z3745D
4C 4T @ 1.33 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Atom Z3745D
Intel HD Graphics (Bay Trail GT1) @ 0.79 GHz |
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Intel Core i9-7940X
@ 0.00 GHz |
Intel Atom Z3745D
4C 4T @ 1.33 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Intel Atom Z3745D
4C 4T @ 1.83 GHz |
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Intel Core i9-7940X
14C 28T @ 4.30 GHz |
Intel Atom Z3745D
4C 4T @ 1.33 GHz |
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Intel Core i9-7940X
14C 28T @ 3.70 GHz |
Devices using this processor |
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Intel Atom Z3745D | Intel Core i9-7940X |
Unknown | Unknown |