Winner
Intel Pentium E2140
CPUBoss recommends the Intel Pentium E2140 based on its performance.
See full details Intel Pentium E2140 vs D 820 |
Released April, 2007
Intel Pentium E2140
- 1.6 GHz
- Dual core
3.2 Out of 10
Reasons to buy the Intel Pentium E2140
 | Much newer manufacturing process 65 nm | | Supports dynamic frequency scaling Yes |
| | Much lower typical power consumption 52.81W | | Significantly lower annual home energy cost 15.66 $/year |
VS
Released April, 2005
Intel Pentium D 820
- 2.8 GHz
- Dual core
2.9 Out of 10
Reasons to buy the D 820
| | Much higher clock speed 2.8 GHz | | Much more l2 cache 2 MB |
| | Much more l2 cache per core 1 MB/core | | Much better overclocked clock speed (Air) 3.52 GHz |
CPUBoss Review Our evaluation of E2140 vs 820 among desktop CPUs
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Fire Strike | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
| 3.2 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
VS
Differences What are the advantages of each
| |||||||
| Much newer manufacturing process | 65 nm | vs | 90 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
|---|---|---|---|---|---|---|---|
| Supports dynamic frequency scaling | Yes | vs | No | Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed | |||
| Much lower typical power consumption | 52.81W | vs | 77.19W | More than 30% lower typical power consumption | |||
| Significantly lower annual home energy cost | 15.66 $/year | vs | 22.89 $/year | More than 30% lower annual home energy cost | |||
| Significantly lower annual commercial energy cost | 56.94 $/year | vs | 83.22 $/year | More than 30% lower annual commercial energy cost | |||
| Newer | Apr, 2007 | vs | Apr, 2005 | Release date over 2 years later | |||
| |||||||
| Much higher clock speed | 2.8 GHz | vs | 1.6 GHz | Around 75% higher clock speed | |||
| Much more l2 cache | 2 MB | vs | 1 MB | 2x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
| Much more l2 cache per core | 1 MB/core | vs | 0.5 MB/core | 2x more l2 cache per core | |||
| Much better overclocked clock speed (Air) | 3.52 GHz | vs | 3 GHz | More than 15% better overclocked clock speed (Air) | |||
| Higher Maximum operating temperature | 64.1 °C | vs | 61.4 °C | Around 5% higher Maximum operating temperature | |||
| Much better overclocked clock speed (Water) | 4.25 GHz | vs | 3.06 GHz | Around 40% better overclocked clock speed (Water) | |||
Report a correction
Benchmarks Real world tests of Pentium E2140 vs D 820
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench
Specifications Full list of technical specs
summary | Pentium E2140 | vs | D 820 |
|---|---|---|---|
| Clock speed | 1.6 GHz | 2.8 GHz | |
| Cores | Dual core | Dual core | |
| Socket type | |||
| LGA 775 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | No | |
| Has virtualization support | No | No | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | No | |
power consumption | |||
| TDP | 65W | 95W | |
| Annual home energy cost | 15.66 $/year | 22.89 $/year | |
| Annual commercial energy cost | 56.94 $/year | 83.22 $/year | |
| Performance per watt | 0.99 pt/W | 0.94 pt/W | |
| Typical power consumption | 52.81W | 77.19W | |
bus | |||
| Architecture | FSB | FSB | |
| Number of links | 1 | 1 | |
| Clock speed | 800 MHz | 800 MHz | |
details | Pentium E2140 | vs | D 820 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 2 | 2 | |
| L2 cache | 1 MB | 2 MB | |
| L2 cache per core | 0.5 MB/core | 1 MB/core | |
| Manufacture process | 65 nm | 90 nm | |
| Transistor count | 105,000,000 | 230,000,000 | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 8 | 14 | |
| Voltage range | 0.85 - 1.5V | 1.2 - 1.4V | |
| Operating temperature | Unknown - 61.4°C | Unknown - 64.1°C | |
overclocking | |||
| Overclock popularity | 4 | 11 | |
| Overclocked clock speed | 3 GHz | 3.52 GHz | |
| Overclocked clock speed (Water) | 3.06 GHz | 4.25 GHz | |
| Overclocked clock speed (Air) | 3 GHz | 3.52 GHz | |
integrated graphics | |||
| GPU | None | None | |
| Label | N/A | N/A | |
| Latest DirectX | N/A | N/A | |
| Number of displays supported | N/A | N/A | |
| GPU clock speed | N/A | N/A | |
| Turbo clock speed | N/A | N/A | |
| 3DMark06 | N/A | N/A | |
 Intel Pentium E2140  Report a correction |  Intel Pentium D 820 Report a correction |
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