Core 2 Extreme X7800 vs Core i7-2600K

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Aggregate performance score

Core i7-2600K
2011
4 cores / 8 threads, 95 Watt
3.46
+381%
Core 2 Extreme X7800
2007
2 cores / 2 threads, 44 Watt
0.72

Core i7-2600K outperforms Core 2 Extreme X7800 by a whopping 381% based on our aggregate benchmark results.

Primary details

Comparing Core i7-2600K and Core 2 Extreme X7800 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking15532704
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.47no data
Market segmentDesktop processorLaptop
SeriesIntel Core i7 (Desktop)Intel Core 2 Extreme
Power efficiency3.431.54
Architecture codenameSandy Bridge (2011−2013)Merom XE (2007)
Release date9 January 2011 (13 years ago)17 July 2007 (17 years ago)
Launch price (MSRP)$317$851

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-2600K and Core 2 Extreme X7800 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 cores4 (Quad-Core)2 (Dual-core)
Threads82
Base clock speed3.4 GHz2.6 GHz
Boost clock speed3.8 GHz2.6 GHz
Bus rate5 GT/s800 MHz
L1 cache64 KB (per core)128 KB
L2 cache256K (per core)4 MB
L3 cache8 MB (shared)4 MB L2 Cache
Chip lithography32 nm65 nm
Die size216 mm2143 mm2
Maximum core temperature73 °C100 °C
Number of transistors1,160 million291 Million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-
VID voltage rangeno data1.1V-1.375V

Compatibility

Information on Core i7-2600K and Core 2 Extreme X7800 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 configuration1no data
SocketLGA1155PPGA478
Power consumption (TDP)95 Watt44 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2600K and Core 2 Extreme X7800. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVXno data
AES-NI+-
AVX+-
Enhanced SpeedStep (EIST)++
Turbo Boost Technology+-
Hyper-Threading Technology+-
Idle States+no data
Thermal Monitoring+-
Flex Memory Access+no data
Demand Based Switchingno data-
FDI+no data
Fast Memory Access+no data
FSB parityno data-

Security technologies

Core i7-2600K and Core 2 Extreme X7800 technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++
Identity Protection+-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2600K and Core 2 Extreme X7800 are enumerated here.

VT-d-no data
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2600K and Core 2 Extreme X7800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3no data
Maximum memory size32 GBno data
Max memory channels2no data
Maximum memory bandwidth21 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 3000no data
Quick Sync Video+-
Clear Video HD+no data
Graphics max frequency1.35 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-2600K and Core 2 Extreme X7800 integrated GPUs.

Number of displays supported2no data

Peripherals

Specifications and connection of peripherals supported by Core i7-2600K and Core 2 Extreme X7800.

PCIe version2.0no data
PCI Express lanes16no data

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.

i7-2600K 3.46
+381%
Core 2 Extreme X7800 0.72

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.

i7-2600K 5492
+383%
Core 2 Extreme X7800 1138

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.

i7-2600K 6669
+221%
Core 2 Extreme X7800 2079

Gaming performance

Pros & cons summary


Performance score 3.46 0.72
Recency 9 January 2011 17 July 2007
Physical cores 4 2
Threads 8 2
Chip lithography 32 nm 65 nm
Power consumption (TDP) 95 Watt 44 Watt

i7-2600K has a 380.6% higher aggregate performance score, an age advantage of 3 years, 100% more physical cores and 300% more threads, and a 103.1% more advanced lithography process.

Core 2 Extreme X7800, on the other hand, has 115.9% lower power consumption.

The Core i7-2600K is our recommended choice as it beats the Core 2 Extreme X7800 in performance tests.

Note that Core i7-2600K is a desktop processor while Core 2 Extreme X7800 is a notebook one.


Should you still have questions on choice between Core i7-2600K and Core 2 Extreme X7800, ask them in Comments section, and we shall answer.

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Intel Core i7-2600K
Core i7-2600K
Intel Core 2 Extreme X7800
Core 2 Extreme X7800

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