Detailed comparison and review of Intel Xeon E7-4820 and Intel Xeon E3-1281V3. With our comprehensive overview, you can simply compare overall performance, cache sizes, RAM, power efficiency, architecture, but also other key features of both processors and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the processor that best fits your needs and expectations.
| GENERAL | Intel Xeon E7-4820 | Intel Xeon E3-1281V3 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E7-4820 | Intel Xeon E3-1281V3 |
|---|
| Type | Intel Xeon E7-4820 | Intel Xeon E3-1281V3 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1567 Socket | LGA1150 Socket |
| Manufacturing Process | 32 nm | 22 nm |
| Thermal Design Power | 105 W | 82 W |
| Thermal Specification | 64 °C | - |
| PCI Express Revision | - | 3.0 |
| PCI Express Configurations | - | 1x16, 2x8, 1x8, 2x4 |
| PCI Express Lanes Qty | - | 16 |
| Architecture Features | Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology | SpeedStep technology, Hyper-Threading Technology, Intel Virtualization Technology, Intel Turbo Boost Technology |
| PERFORMANCE |
|---|
| Number of Cores | 8-core | Quad-Core |
|---|---|---|
| Number of Threads | 16 threads | 8 threads |
| Clock Speed (Frequency) | 2 GHz | 3.7 GHz |
| Max Turbo Speed | 2.27 GHz | 4.1 GHz |
| Bus Speed | 2933 MHz | - |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 18 MB | 8 MB |
|---|---|---|
| Cache Memory Details | L3 - 18 MB L2 - 8 x 256 KB |
L3 - 8 MB |
| Installed Size | 18 MB | 8 MB |
| RAM |
|---|
| Installed RAM Size | - | 32 GB |
|---|
| EXPANSION & CONNECTIVITY | Intel Xeon E7-4820 | Intel Xeon E3-1281V3 |
|---|
| Compatible Slots | 2 x processor - LGA1567 Socket | 1 x processor - LGA1150 Socket |
|---|
| MISCELLANEOUS | Intel Xeon E7-4820 | Intel Xeon E3-1281V3 |
|---|
| Included Accessories | Heat sink | - |
|---|---|---|
| Compliant Standards | RoHS | RoHS |
| Service & Support | Limited warranty - 1 year | - |
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