Pentium D 820 vs i7-2600K

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Primary details

Comparing Core i7-2600K and Pentium D 820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1536not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.43no data
Market segmentDesktop processorDesktop processor
SeriesIntel Core i7 (Desktop)Pentium D
Power efficiency3.45no data
Architecture codenameSandy Bridge (2011−2013)Smithfield (2005)
Release date9 January 2011 (13 years ago)May 2005 (19 years ago)
Launch price (MSRP)$317no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-2600K and Pentium D 820 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 GHz2.8 GHz
Boost clock speed3.8 GHz2.8 GHz
Bus rate5 GT/s800 MHz
L1 cache64 KB (per core)28 KB
L2 cache256K (per core)2 MB
L3 cache8 MB (shared)0 KB
Chip lithography32 nm90 nm
Die size216 mm2206 mm2
Maximum core temperature73 °C64 °C
Number of transistors1,160 million169 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-
VID voltage rangeno data1.2V-1.4V

Compatibility

Information on Core i7-2600K and Pentium D 820 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 configuration12
SocketLGA1155PLGA775
Power consumption (TDP)95 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2600K and Pentium D 820. 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++
Thermal Monitoring+-
Flex Memory Access+no data
Demand Based Switchingno data-
PAEno data32 Bit
FDI+no data
Fast Memory Access+no data
FSB parityno data-

Security technologies

Core i7-2600K and Pentium D 820 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 Pentium D 820 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2600K and Pentium D 820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR1, DDR2, DDR3
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 Pentium D 820 integrated GPUs.

Number of displays supported2no data

Peripherals

Specifications and connection of peripherals supported by Core i7-2600K and Pentium D 820.

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.



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 5489
+1000%
Pentium D 820 499

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
+372%
Pentium D 820 1412

Pros & cons summary


Physical cores 4 2
Threads 8 2
Chip lithography 32 nm 90 nm

i7-2600K has 100% more physical cores and 300% more threads, and a 181.3% more advanced lithography process.

We couldn't decide between Core i7-2600K and Pentium D 820. We've got no test results to judge.


Should you still have questions on choice between Core i7-2600K and Pentium D 820, ask them in Comments section, and we shall answer.

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Intel Core i7-2600K
Core i7-2600K
Intel Pentium D 820
Pentium D 820

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.2 1469 votes

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3.1 171 vote

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Questions & comments

Here you can ask a question about Core i7-2600K or Pentium D 820, agree or disagree with our judgements, or report an error or mismatch.