In depth comparison and review of Intel Xeon E7-4820 and Intel Xeon E3-1220. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.
| GENERAL | Intel Xeon E7-4820 | Intel Xeon E3-1220 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E7-4820 | Intel Xeon E3-1220 |
|---|
| Type | Intel Xeon E7-4820 | Intel Xeon E3-1220 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1567 Socket | LGA1155 Socket |
| Manufacturing Process | 32 nm | 32 nm |
| Thermal Design Power | 105 W | 80 W |
| Thermal Specification | 64 °C | 69.1 °C |
| PCI Express Revision | - | 2.0 |
| PCI Express Lanes Qty | - | 20 |
| Architecture Features | Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology | Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel Turbo Boost Technology |
| PERFORMANCE |
|---|
| Number of Cores | 8-core | Quad-Core |
|---|---|---|
| Number of Threads | 16 threads | 4 threads |
| Clock Speed (Frequency) | 2 GHz | 3.1 GHz |
| Max Turbo Speed | 2.27 GHz | 3.4 GHz |
| Bus Speed | 2933 MHz | - |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 18 MB | 8 MB |
|---|---|---|
| Cache Level 1 Size | - | 256 KB |
| Cache Memory Details | L3 - 18 MB L2 - 8 x 256 KB |
Smart Cache - 8 MB |
| Installed Size | 18 MB | 8 MB |
| EXPANSION & CONNECTIVITY | Intel Xeon E7-4820 | Intel Xeon E3-1220 |
|---|
| Compatible Slots | 2 x processor - LGA1567 Socket | 1 x processor - LGA1155 Socket |
|---|
| MISCELLANEOUS | Intel Xeon E7-4820 | Intel Xeon E3-1220 |
|---|
| Included Accessories | Heat sink | Heat sink |
|---|---|---|
| Compliant Standards | RoHS | RoHS |
| Service & Support | Limited warranty - 1 year | Limited warranty - 3 years |
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