A4 Micro-6400T vs Core 2 Extreme X7900
Aggregate performance score
Core 2 Extreme X7900 outperforms A4 Micro-6400T by a minimal 3% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Extreme X7900 and A4 Micro-6400T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2709 | 2723 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core 2 Extreme | AMD A-Series |
| Power efficiency | 1.51 | 14.30 |
| Architecture codename | Merom (2006−2008) | Mullins (2014) |
| Release date | 1 September 2007 (17 years ago) | 29 April 2014 (10 years ago) |
| Launch price (MSRP) | $851 | no data |
Detailed specifications
Core 2 Extreme X7900 and A4 Micro-6400T basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 4 (Quad-Core) |
| Threads | 2 | 4 |
| Base clock speed | 2.8 GHz | 1 GHz |
| Boost clock speed | 2.8 GHz | 1.6 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | 128 KB | no data |
| L2 cache | 4 MB | 2048 KB |
| L3 cache | 0 KB | no data |
| Chip lithography | 65 nm | 28 nm |
| Die size | 143 mm2 | no data |
| Maximum core temperature | 100 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.1V-1.375V | no data |
Compatibility
Information on Core 2 Extreme X7900 and A4 Micro-6400T compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | no data |
| Socket | PPGA478 | FT3b |
| Power consumption (TDP) | 44 Watt | 4.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme X7900 and A4 Micro-6400T. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX |
| AES-NI | - | + |
| FMA | - | FMA4 |
| AVX | - | + |
| PowerNow | - | + |
| PowerGating | - | + |
| VirusProtect | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | - | no data |
| Demand Based Switching | - | no data |
| AMT | + | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Extreme X7900 and A4 Micro-6400T technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme X7900 and A4 Micro-6400T are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
| IOMMU 2.0 | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7900 and A4 Micro-6400T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | DDR3-1333 |
| Max memory channels | no data | 1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon R3 Graphics |
| Enduro | - | + |
| Switchable graphics | - | + |
| UVD | - | + |
| VCE | - | + |
Graphics interfaces
Available interfaces and connections of Core 2 Extreme X7900 and A4 Micro-6400T integrated GPUs.
| DisplayPort | - | + |
| HDMI | - | + |
Graphics API support
APIs supported by Core 2 Extreme X7900 and A4 Micro-6400T integrated GPUs, sometimes API versions are included.
| DirectX | no data | DirectX® 12 |
| Vulkan | - | + |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme X7900 and A4 Micro-6400T.
| PCIe version | no data | 2.0 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Pros & cons summary
| Performance score | 0.70 | 0.68 |
| Recency | 1 September 2007 | 29 April 2014 |
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 65 nm | 28 nm |
| Power consumption (TDP) | 44 Watt | 4 Watt |
Core 2 Extreme X7900 has a 2.9% higher aggregate performance score.
A4 Micro-6400T, on the other hand, has an age advantage of 6 years, 100% more physical cores and 100% more threads, a 132.1% more advanced lithography process, and 1000% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Core 2 Extreme X7900 and A4 Micro-6400T.
Should you still have questions on choice between Core 2 Extreme X7900 and A4 Micro-6400T, ask them in Comments section, and we shall answer.
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