Core 2 Extreme X7800
Intel
PassMark
1,138
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Overview
The Core 2 Extreme X7800 is manufactured by Intel. It was released in 17 July 2007 (18 years ago). It is based on the Merom XE (2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB L2 Cache. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Passmark benchmark score: 1,138 points. Launch price was $851.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Core 2 Extreme X7800 is positioned at rank #1145 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Extreme X7800
Technical Analysis
Detailed breakdown of Core 2 Extreme X7800 specifications and capabilities.
Processing Power
The Core 2 Extreme X7800 is a 2-core / 2-thread processor based on the Merom XE (2007) architecture, manufactured on a 65 nm process node. It reaches a maximum boost clock of 2.6 GHz from a base frequency of 2.6 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 4 MB L2 Cache of L3 cache, plus 4 MB of L2 cache and 128 kB of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 1,138, placing it in the Entry Level performance tier as a Legacy generation product.
| Specification | Core 2 Extreme X7800 |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 2C / 2T |
| Max Boost ClockPeak single-core speed under boost | 2.6 GHz |
| Base ClockGuaranteed minimum operating frequency | 2.6 GHz |
| ArchitectureCPU microarchitecture design | Merom XE (2007) |
| Process NodeFabrication technology — smaller = more efficient | 65 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 4 MB L2 Cache |
| L2 CachePer-core fast cache for frequently accessed data | 4 MB |
| L1 CacheUltra-fast per-core cache | 128 kB |
| Die SizePhysical silicon area of the processor | 143 mm2 |
| Transistor CountMore transistors = more capabilities | 291 Million |
| Bus SpeedData bus frequency | 800 MHz |
| Max TemperatureMaximum safe operating temperature (Tjmax) | 100 °C |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| Core Voltage Range | 1.1V-1.375V |
| PassMark ScoreOverall multi-threaded benchmark score | 1,138 |
Memory & Platform
The Core 2 Extreme X7800 fits into the PGA478 socket and supports PCIe 1.1 with 16 total PCIe lanes for expansion cards and storage.
| Specification | Core 2 Extreme X7800 |
|---|---|
| TypeDesktop or Laptop processor | Laptop |
| SeriesProduct family | Intel Core 2 Extreme |
| SocketMotherboard socket required | PGA478 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 1.1 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 16 |
| Max RAM SpeedMaximum officially supported memory frequency | DDR2-667 |
| Max RAM CapacityMaximum installable memory | 4 GB |
| RAM ChannelsDual-channel doubles bandwidth vs single-channel | 2 |
| ECC SupportError-Correcting Code memory — prevents data corruption | No |
| Integrated GPUBuilt-in graphics processor | No |
| Compatible ChipsetsMotherboard chipsets that support this CPU | Socket P |
Advanced Features
It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. Virtualization: VT-x — enables running virtual machines efficiently (important for development and server workloads).
| Specification | Core 2 Extreme X7800 |
|---|---|
| OverclockingWhether CPU clock can be manually increased | ✅ Unlocked |
| AVX-512Advanced vector instructions for AI/ML workloads | ❌ Not Supported |
| VirtualizationHardware-assisted virtualization technology | VT-x |
Power & Cooling
The Core 2 Extreme X7800 has a rated TDP (Thermal Design Power) of 44 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: Laptop Grade.
| Specification | Core 2 Extreme X7800 |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 44 Watt |
| Max TemperatureMaximum safe junction temperature (Tjmax) | 100 °C |
| Included CoolerStock cooler bundled in the box | No |
| Recommended CoolerSuggested aftermarket cooling solution | Laptop Grade |
Value Analysis
It currently holds Rank #1145 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #2993 out of all indexed processors.
| Specification | Core 2 Extreme X7800 |
|---|---|
| Launch PriceOriginal retail price at launch | $851 |
| Cost-Benefit RankPosition in overall value ranking | #1145 |
| Performance RankPosition in overall performance ranking | #2993 |
| Release DateLaunch date | 17 July 2007 (18 years ago) |
| Release Year | 2007 |
| DesignerArchitecture designer (e.g. Intel, AMD) | Intel |
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Our Recommendation for Core 2 Extreme X7800
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