Side by side comparison and review of Intel Xeon E3-1275 and Intel Xeon E5-1603V4. 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 E3-1275 | Intel Xeon E5-1603V4 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1275 | Intel Xeon E5-1603V4 |
|---|
| Type | Intel Xeon E3-1275 | Intel Xeon E5-1603V4 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1155 Socket | LGA2011-v3 Socket |
| Manufacturing Process | 32 nm | 14 nm |
| Thermal Design Power | 95 W | 140 W |
| Thermal Specification | 72.6 °C | - |
| PCI Express Revision | 2.0 | - |
| PCI Express Lanes Qty | 20 | - |
| Architecture Features | Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel Advanced Vector Extensions (AVX), Intel AES New Instructions (AES-NI) | Intel Virtualization Technology, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Quad-Core |
|---|---|---|
| Number of Threads | 8 threads | 4 threads |
| Clock Speed (Frequency) | 3.4 GHz | 2.8 GHz |
| Max Turbo Speed | 3.8 GHz | - |
| Bus Speed | - | 2133 MHz |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 10 MB |
|---|---|---|
| Cache Level 1 Size | 256 KB | - |
| Cache Memory Details | Smart Cache - 8 MB | 10 MB |
| Installed Size | 8 MB | - |
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1275 | Intel Xeon E5-1603V4 |
|---|
| Type | Intel HD Graphics P3000 | - |
|---|---|---|
| Base Frequency | 850 MHz | - |
| Max Dynamic Frequency | 1.35 GHz | - |
| Features | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video | - |
| EXPANSION & CONNECTIVITY | Intel Xeon E3-1275 | Intel Xeon E5-1603V4 |
|---|
| Compatible Slots | 1 x processor - LGA1155 Socket | - |
|---|
| MISCELLANEOUS | Intel Xeon E3-1275 | Intel Xeon E5-1603V4 |
|---|
| Included Accessories | Heat sink | Heat sink, redundant fans |
|---|---|---|
| Compliant Standards | Halogen-free | - |
| Service & Support | Limited warranty - 3 years | - |
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