Combined benchmark scores for both processors
Head-to-head processor comparison
Combined benchmark scores for both processors
Out of 2,060 results in the database
Rank #2,056
Rank #1,611
Pentium 3805U wins by 15.5% (Rank #2056 vs #1611)
Out of 2,060 results in the database
Rank #2,055
Rank #1,583
Pentium 3805U wins by 24.3% (Rank #2055 vs #1583)
Out of 2,060 results in the database
Rank #2,015
Rank #1,715
Pentium 3805U wins by 2.7% (Rank #2015 vs #1715)
Out of 1,771 results in the database
Rank #1,770
Rank #1,518
Pentium 3805U wins by 1.7% (Rank #1770 vs #1518)
Out of 1,771 results in the database
Rank #1,771
Rank #1,613
Pentium 3805U wins by 1% (Rank #1771 vs #1613)
Out of 1,771 results in the database
Rank #1,767
Rank #1,512
Pentium 3805U wins by 1.2% (Rank #1767 vs #1512)
Side-by-side comparison of key specifications
| Specification | Atom Z520 | Pentium 3805U | Diff |
|---|---|---|---|
| Cores |
1
|
2
|
-50% |
| Threads |
2
|
2
|
0% |
| Base Frequency |
1,333 MHz
|
1,900 MHz
|
-29.8% |
| Clock Multiplier |
10x
|
19x
|
-47.4% |
| L1 Cache |
56 KB
|
62 KB
|
-10.3% |
| L2 Cache |
1 MiB
|
0 MiB
|
+51.2% |
| L3 Cache | -- |
2 MiB
|
|
| Memory Channels | -- |
2
|
|
| Maximum Memory | -- |
0 GB
|
|
| Max Bandwidth | -- |
26 GB/s
|
|
| PCIe Lanes | -- |
12
|
|
| Max CPUs |
1
|
1
|
0% |
| TDP (lower is better) |
2 W
|
15 W
|
86.7% less |
| Process (lower is better) |
45 nm
|
14 nm
|
68.9% more |
| Specification | Atom Z520 | Pentium 3805U |
|---|---|---|
| Designer | Intel | Intel |
| Family | Atom | -- |
| Series | Z500 | -- |
| Model Number | Z520 | 3805U |
| Microarchitecture | Bonnell | -- |
| Core Name | Silverthorne | Broadwell-U |
| Core Family | 6 | -- |
| Core Model | 28 | -- |
| Socket | BGA-441 | FCBGA1168 |
| Package | FCBGA-441 | FC-BGA1168 |
| Chipset | Poulsbo | -- |
| Memory Type | -- | DDR3L 1333/1600 LPDDR3 1333/1600 |
| ECC Support | -- | No |
| PCIe Revision | -- | 2.0 |
| PCIe Configuration | -- | 4x1 2x4 |
| Market Segment | Mobile | Mobile |
| Release Price | $65.00 | -- |
| Locked Multiplier | Yes | Yes |
Designer
Family
Series
Model Number
Microarchitecture
Core Name
Core Family
Core Model
Socket
Package
Chipset
Memory Type
ECC Support
PCIe Revision
PCIe Configuration
Market Segment
Release Price
Locked Multiplier
Manufacturing process and die characteristics
| Specification | Atom Z520 | Pentium 3805U |
|---|---|---|
| Process | 45 nm | 14 nm |
| Die Area | 24.18 mm² | 82 mm² |
| Transistor Count | 0.05 billion | 1,300 |
| Manufacturer | Intel | Intel |
| Technology | CMOS | -- |
| Word Size | 32-bit | 64-bit |
| ISA | x86-32 (x86) | -- |
Process
Die Area
Transistor Count
Manufacturer
Technology
Word Size
ISA
Integrated GPU specifications comparison
| Specification | Atom Z520 | Pentium 3805U |
|---|---|---|
| GPU | -- | HD Graphics |
| GPU Designer | -- | Intel |
| GPU Max Frequency | -- | 800 MHz |
GPU
GPU Designer
GPU Max Frequency
Supported instruction set extensions comparison
| Extension | Atom Z520 | Pentium 3805U |
|---|---|---|
| ADX | ||
| AES | ||
| AVX2 | ||
| EIST | ||
| EMMX | ||
| EPT | ||
| FMA | ||
| FPU | ||
| Flex Memory | ||
| HT | ||
| IPT | ||
| MMX | ||
| NX | ||
| Protected | ||
| Real | ||
| SIPP | ||
| SMEP | ||
| SMM | ||
| SSE | ||
| SSE2 | ||
| SSE3 | ||
| SSE4.1 | ||
| SSE4.2 | ||
| SSSE3 | ||
| Secure Key | ||
| TSX | ||
| TXT | ||
| VT-d | ||
| VT-x | ||
| vPro | ||
| x86-16 | ||
| x86-32 | ||
| x86-64 |
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