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 #1,772
Core 2 Duo E8400 wins by 13.2% (Rank #2056 vs #1772)
Out of 2,060 results in the database
Rank #2,055
Rank #1,687
Core 2 Duo E8400 wins by 22.4% (Rank #2055 vs #1687)
Out of 2,060 results in the database
Rank #2,015
Rank #2,018
Atom Z520 wins by 0.2% (Rank #2015 vs #2018)
Out of 1,771 results in the database
Rank #1,770
Number Crunching not available for both processors.
Out of 1,771 results in the database
Rank #1,771
Data Processing not available for both processors.
Out of 1,771 results in the database
Rank #1,767
Physics & Compute not available for both processors.
Side-by-side comparison of key specifications
| Specification | Atom Z520 | Core 2 Duo E8400 | Diff |
|---|---|---|---|
| Cores |
1
|
2
|
-50% |
| Threads |
2
|
4
|
-50% |
| Base Frequency |
1,333 MHz
|
3,000 MHz
|
-55.6% |
| Clock Multiplier |
10x
|
9x
|
+10% |
| L1 Cache |
56 KB
|
62 KB
|
-10.3% |
| L2 Cache |
1 MiB
|
6 MiB
|
-91.3% |
| 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
|
65 W
|
96.9% less |
| Process (lower is better) |
45 nm
|
45 nm
|
0% |
| Specification | Atom Z520 | Core 2 Duo E8400 |
|---|---|---|
| Designer | Intel | Intel |
| Family | Atom | -- |
| Series | Z500 | -- |
| Model Number | Z520 | E8400 |
| Microarchitecture | Bonnell | -- |
| Core Name | Silverthorne | Wolfdale |
| Core Family | 6 | -- |
| Core Model | 28 | -- |
| Socket | BGA-441 | LGA775 |
| Package | FCBGA-441 | FC-LGA6 |
| Chipset | Poulsbo | -- |
| Memory Type | -- | DDR3L 1333/1600, LPDDR3 1333/1600 |
| ECC Support | -- | No |
| PCIe Revision | -- | 2.0 |
| PCIe Configuration | -- | 4x1, 2x4 |
| Market Segment | Mobile | Desktop |
| 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 | Core 2 Duo E8400 |
|---|---|---|
| Process | 45 nm | 45 nm |
| Die Area | 24.18 mm² | 104 mm² |
| Transistor Count | 0.05 billion | 0.00 billion |
| 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 | Core 2 Duo E8400 |
|---|---|---|
| GPU | -- | HD graphics 4200 |
| GPU Designer | -- | Intel |
| GPU Max Frequency | -- | 850 MHz |
GPU
GPU Designer
GPU Max Frequency
Supported instruction set extensions comparison
| Extension | Atom Z520 | Core 2 Duo E8400 |
|---|---|---|
| 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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