Intel Pentium 3805U | Intel Atom Z3775D | |
CPU comparisonIntel Pentium 3805U or Intel Atom Z3775D - 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 Pentium 3805U has 2 cores with 2 threads and clocks with a maximum frequency of 1.90 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Pentium 3805U was released in Q1/2015. The Intel Atom Z3775D has 4 cores with 4 threads and clocks with a maximum frequency of 2.41 GHz. The CPU supports up to 2 GB of memory in 1 memory channels. The Intel Atom Z3775D was released in Q1/2014. |
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Intel Pentium (150) | Family | Intel Atom (108) |
Intel Pentium 3000 (8) | CPU group | Intel Atom Z3700 (16) |
4 | Generation | 4 |
Haswell U | Architecture | Bay Trail |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Pentium 3805U has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Intel Pentium 3805U is 1.90 GHz while the Intel Atom Z3775D has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom Z3775D is at 1.49 GHz (2.41 GHz). |
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Intel Pentium 3805U | Characteristic | Intel Atom Z3775D |
2 | Cores | 4 |
2 | Threads | 4 |
normal | Core architecture | normal |
No | Hyperthreading | No |
No | Overclocking ? | No |
1.90 GHz | Frequency | 1.49 GHz |
-- | Turbo Frequency (1 Core) | 2.41 GHz |
-- | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The Intel Pentium 3805U or Intel Atom Z3775D 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 (Broadwell GT1) | GPU | Intel HD Graphics (Bay Trail GT1) |
0.10 GHz | GPU frequency | 0.31 GHz |
0.80 GHz | GPU (Turbo) | 0.79 GHz |
8 | GPU Generation | 7 |
14 nm | Technology | 22 nm |
3 | Max. displays | 2 |
12 | Compute units | 4 |
96 | Shader | 32 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | 2 GB |
11.2 | 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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Intel HD Graphics (Broadwell GT1) | GPU | Intel HD Graphics (Bay Trail GT1) |
No | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | Decode / Encode |
No | Codec VP9 | No |
Decode | Codec VP8 | No |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode | Codec JPEG | Decode |
Memory & PCIeThe Intel Pentium 3805U can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Intel Atom Z3775D supports up to 2 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 10.6 GB/s. |
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Intel Pentium 3805U | Characteristic | Intel Atom Z3775D |
DDR3-1600 | Memory | DDR3L-1333 |
16 GB | Max. Memory | 2 GB |
2 (Dual Channel) | Memory channels | 1 (Single Channel) |
25.6 GB/s | Max. Bandwidth | 10.6 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
2.00 MB | L3 Cache | 2.00 MB |
2.0 | PCIe version | -- |
12 | PCIe lanes | -- |
6.0 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Pentium 3805U is 15 W, while the Intel Atom Z3775D has a TDP of 4 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Pentium 3805U | Characteristic | Intel Atom Z3775D |
15 W | TDP (PL1 / PBP) | 4 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 90 °C |
Technical detailsThe Intel Pentium 3805U is manufactured in 22 nm and has 2.00 MB cache. The Intel Atom Z3775D is manufactured in 22 nm and has a 2.00 MB cache. |
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Intel Pentium 3805U | Characteristic | Intel Atom Z3775D |
22 nm | Technology | 22 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 |
BGA 1168 | Socket | BGA 1380 |
VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | |
Q1/2015 | Release date | Q1/2014 |
-- | Release price | 35 $ |
show more data | show more data | |
Intel Pentium 3805U
Intel HD Graphics (Broadwell GT1) @ 0.80 GHz |
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Intel Atom Z3775D
Intel HD Graphics (Bay Trail GT1) @ 0.79 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 1.49 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 2.41 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 1.49 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 2.41 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 1.49 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 2.41 GHz |
Intel Pentium 3805U
2C 2T @ 1.90 GHz |
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Intel Atom Z3775D
4C 4T @ 1.49 GHz |
Devices using this processor |
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Intel Pentium 3805U | Intel Atom Z3775D |
Unknown | Unknown |