Side by side comparison and review of Intel Xeon E3-1245 and Intel Xeon W3520. 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 E3-1245 | Intel Xeon W3520 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E3-1245 | Intel Xeon W3520 |
|---|
| Type | Intel Xeon E3-1245 | Intel Xeon W3520 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Packaging Type | - | FC-LGA8 |
| Compatible Processor Socket | LGA1155 Socket | LGA1366 Socket |
| Manufacturing Process | 32 nm | 45 nm |
| Thermal Design Power | 95 W | 130 W |
| Thermal Specification | 72.6 °C | 67.9 °C |
| PCI Express Revision | 2.0 | - |
| PCI Express Lanes Qty | 20 | - |
| Architecture Features | Hyper-Threading Technology, Intel Virtualization Technology, Intel Trusted Execution Technology | Enhanced SpeedStep technology, streaming SIMD extensions 2, Hyper-Threading Technology, integrated memory controller, streaming SIMD extensions 3, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel I/O Acceleration Technology, streaming SIMD extensions 4 |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Quad-Core |
|---|---|---|
| Number of Threads | 8 threads | 8 threads |
| Clock Speed (Frequency) | 3.3 GHz | 2.66 GHz |
| Max Turbo Speed | 3.7 GHz | 2.93 GHz |
| Bus Speed | - | 1066 MHz |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 8 MB |
|---|---|---|
| Cache Level 1 Size | 256 KB | - |
| Cache Memory Details | L3 - 8 MB | L3 - 8 MB |
| Installed Size | 8 MB | 8 MB |
| Type | - | Advanced Smart Cache |
| RAM |
|---|
| Technology | - | - ECC |
|---|
| INTEGRATED GRAPHICS (GPU) | Intel Xeon E3-1245 | Intel Xeon W3520 |
|---|
| 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 E3-1245 | Intel Xeon W3520 |
|---|
| Interfaces | - | - GT5 |
|---|---|---|
| Compatible Slots | 1 x processor | 1 x processor |
| MISCELLANEOUS | Intel Xeon E3-1245 | Intel Xeon W3520 |
|---|
| Included Accessories | Heat sink | - |
|---|---|---|
| Compliant Standards | Halogen-free | - |
| Service & Support | Limited warranty - 3 years | Limited warranty - 90 days |
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