Core i5-6585R vs Core 2 Duo E8400
Primary details
Comparing Core 2 Duo E8400 and Core i5-6585R processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2671 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i5 |
| Power efficiency | 1.06 | no data |
| Architecture codename | Wolfdale (2008−2010) | Skylake (2015−2016) |
| Release date | 1 January 2008 (16 years ago) | 22 April 2016 (8 years ago) |
| Launch price (MSRP) | no data | $255 |
Detailed specifications
Core 2 Duo E8400 and Core i5-6585R basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 4 (Quad-Core) |
| Threads | 2 | 4 |
| Base clock speed | 3 GHz | 2.8 GHz |
| Boost clock speed | 3 GHz | 3.6 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | 1333 MHz | 4 × 8 GT/s |
| Multiplier | no data | 28 |
| L1 cache | 64 KB (per core) | 256 KB |
| L2 cache | 6 MB (shared) | 1 MB |
| L3 cache | 0 KB | 6 MB |
| Chip lithography | 45 nm | 14 nm |
| Die size | 104 mm2 | no data |
| Maximum core temperature | no data | 71 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 410 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Duo E8400 and Core i5-6585R compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 (Uniprocessor) |
| Socket | LGA775 | no data |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core i5-6585R. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| eDRAM | no data | 128 MB |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | - |
| TSX | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Duo E8400 and Core i5-6585R technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo E8400 and Core i5-6585R are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Core i5-6585R. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4-1866/2133, DDR3L-1333/1600 |
| Maximum memory size | no data | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 34.134 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | Intel Iris Pro Graphics 580 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.1 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Core 2 Duo E8400 and Core i5-6585R integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Core 2 Duo E8400 and Core i5-6585R integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
| Max resolution over VGA | no data | N/A |
Graphics API support
APIs supported by Core 2 Duo E8400 and Core i5-6585R integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core i5-6585R.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Recency | 1 January 2008 | 22 April 2016 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 45 nm | 14 nm |
i5-6585R has an age advantage of 8 years, 100% more physical cores and 100% more threads, and a 221.4% more advanced lithography process.
We couldn't decide between Core 2 Duo E8400 and Core i5-6585R. We've got no test results to judge.
Should you still have questions on choice between Core 2 Duo E8400 and Core i5-6585R, ask them in Comments section, and we shall answer.
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