In depth comparison and review of Intel Xeon E5640 and AMD Athlon 64 X2 4400+. 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 E5640 | AMD Athlon 64 X2 4400+ |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | Intel Xeon E5640 | AMD Athlon 64 X2 4400+ |
|---|
| Type | Intel Xeon E5640 | AMD Athlon 64 X2 4400+ |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | LGA1366 Socket | Socket AM2 |
| Core Voltage | 0.8 V - 1.3 V | 1.3 V/1.35 V |
| Manufacturing Process | 32 nm | 90 nm |
| Thermal Design Power | 80 W | 65 W |
| Thermal Specification | 77.6 °C | 70 °C |
| Architecture Features | Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology | HyperTransport technology, AMD64 technology, Enhanced Virus Protection, AMD Cool'n'Quiet Technology |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Dual-Core |
|---|---|---|
| Number of Threads | 8 threads | - |
| Clock Speed (Frequency) | 2.66 GHz | 2.2 GHz |
| Max Turbo Speed | 2.93 GHz | - |
| Bus Speed | 1066 MHz | - |
| 64-bit Computing | Yes | Yes |
| CACHE MEMORY |
|---|
| Cache | 12 MB | - |
|---|---|---|
| Cache Level 1 Size | - | 256 KB |
| Cache Memory Details | L2 - 1 MB | L2 - |
| Installed Size | 12 MB | 2 MB |
| EXPANSION & CONNECTIVITY | Intel Xeon E5640 | AMD Athlon 64 X2 4400+ |
|---|
| Compatible Slots | 1 x processor | 1 x processor |
|---|
| MISCELLANEOUS | Intel Xeon E5640 | AMD Athlon 64 X2 4400+ |
|---|
| Included Accessories | Heat sink | - |
|---|---|---|
| Compliant Standards | RoHS | - |
| Service & Support | Limited warranty - 1 year - on-site | Limited warranty - 3 years |
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