Side by side comparison and review of Intel Xeon E7520 and AMD Athlon II X4 845. 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 E7520 | AMD Athlon II X4 845 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E7520 | AMD Athlon II X4 845 |
|---|
| Type | Intel Xeon E7520 | AMD Athlon II X4 845 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1567 Socket | Socket FM2+ |
| Manufacturing Process | 45 nm | 28 nm |
| Thermal Design Power | 95 W | 65 W |
| Thermal Specification | 70 °C | 71.3 °C |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology | AMD Virtualization |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Quad-Core |
|---|---|---|
| Number of Threads | 8 threads | 4 threads |
| Clock Speed (Frequency) | 1.87 GHz | 3.5 GHz |
| Max Turbo Speed | - | 3.8 GHz |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 18 MB | 2 MB |
|---|---|---|
| Cache Memory Details | L3 - 18 MB | L2 - 2 MB |
| Installed Size | 18 MB | - |
| EXPANSION & CONNECTIVITY | Intel Xeon E7520 | AMD Athlon II X4 845 |
|---|
| Compatible Slots | 2 x processor | - |
|---|
| MISCELLANEOUS | Intel Xeon E7520 | AMD Athlon II X4 845 |
|---|
| Included Accessories | - | Near Silent Thermal Solution |
|---|---|---|
| Compliant Standards | RoHS | AES |
| Service & Support | Limited warranty - 3 years | - |
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