Side by side comparison and review of Intel Xeon E7-4820V2 and Intel Xeon E3-1281V3. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Intel Xeon E7-4820V2 | Intel Xeon E3-1281V3 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E7-4820V2 | Intel Xeon E3-1281V3 |
|---|
| Type | Intel Xeon E7-4820V2 | Intel Xeon E3-1281V3 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA2011 Socket | LGA1150 Socket |
| Manufacturing Process | 22 nm | 22 nm |
| Thermal Design Power | 105 W | 82 W |
| PCI Express Revision | 3.0 | 3.0 |
| PCI Express Configurations | X16, x4, x8 | 1x16, 2x8, 1x8, 2x4 |
| PCI Express Lanes Qty | 32 | 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 | 2.5 GHz | 4.1 GHz |
| CACHE MEMORY |
|---|
| Cache | 16 MB | 8 MB |
|---|---|---|
| Cache Memory Details | 16 MB | L3 - 8 MB |
| Installed Size | 16 MB | 8 MB |
| RAM |
|---|
| Installed RAM Size | - | 32 GB |
|---|
| EXPANSION & CONNECTIVITY | Intel Xeon E7-4820V2 | Intel Xeon E3-1281V3 |
|---|
| Expansion Slots | 24 (total) / 24 (free) x memory - DIMM 240-pin | - |
|---|---|---|
| Compatible Slots | - | 1 x processor - LGA1150 Socket |
| MISCELLANEOUS | Intel Xeon E7-4820V2 | Intel Xeon E3-1281V3 |
|---|
| Included Accessories | Passive heatsink | - |
|---|---|---|
| Compliant Standards | RoHS | RoHS |
| Service & Support | Limited warranty - 1 year | - |
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