i7-12700K vs Pentium D 820

VS

Aggregate performance score

Pentium D 820
2005
2 cores / 2 threads, 95 Watt
0.31
Core i7-12700K
2021
12 cores / 20 threads, 125 Watt
21.78
+6926%

Core i7-12700K outperforms Pentium D 820 by a whopping 6926% based on our aggregate benchmark results.

Primary details

Comparing Pentium D 820 and Core i7-12700K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking3101244
Place by popularitynot in top-10073
Cost-effectiveness evaluationno data41.87
Market segmentDesktop processorDesktop processor
SeriesPentium DIntel Core i7
Power efficiency0.3116.49
Architecture codenameSmithfield (2005)Alder Lake, Golden Cove, Gracemont (2021)
Release dateMay 2005 (19 years ago)4 November 2021 (3 years ago)
Launch price (MSRP)no data$409

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Pentium D 820 and Core i7-12700K 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 cores2 (Dual-core)12 (Dodeca-Core)
Threads220
Base clock speed2.8 GHz3.6 GHz
Boost clock speed2.8 GHz5 GHz
Bus typeno dataDMI 4.0
Bus rate800 MHz8 × 16 GT/s
Multiplierno data36
L1 cache28 KB80K (per core)
L2 cache2 MB1.25 MB (per core)
L3 cache0 KB25 MB (shared)
Chip lithography90 nm10 nm
Die size206 mm2215.25 mm2
Maximum core temperature64 °C100 °C
Maximum case temperature (TCase)no data72 °C
Number of transistors169 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier-+
VID voltage range1.2V-1.4Vno data

Compatibility

Information on Pentium D 820 and Core i7-12700K 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 configuration21
SocketPLGA775FCLGA1700
Power consumption (TDP)95 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 820 and Core i7-12700K. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI-+
FMA-+
AVX-+
vProno data+
Enhanced SpeedStep (EIST)-+
Speed Shiftno data+
Turbo Boost Technology-2.0
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring-+
SIPP-+
Demand Based Switching-no data
PAE32 Bitno data
Turbo Boost Max 3.0no data+
FSB parity-no data
Deep Learning Boost-+

Security technologies

Pentium D 820 and Core i7-12700K technologies aimed at improving security, for example, by protecting against hacks.

TXT-+
EDB++
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 820 and Core i7-12700K are enumerated here.

VT-d-+
VT-x-+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 820 and Core i7-12700K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR4, DDR5
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data76.805 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel UHD Graphics 770
Quick Sync Video-+
Clear Video HDno data+
Graphics max frequencyno data1.5 GHz
Execution Unitsno data32

Graphics interfaces

Available interfaces and connections of Pentium D 820 and Core i7-12700K integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Pentium D 820 and Core i7-12700K integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2160 @ 60Hz
Max resolution over eDPno data5120 x 3200 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Pentium D 820 and Core i7-12700K integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Pentium D 820 and Core i7-12700K.

PCIe versionno data5.0 and 4.0
PCI Express lanesno data20

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.

Pentium D 820 0.31
i7-12700K 21.78
+6926%

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.

Pentium D 820 499
i7-12700K 34598
+6833%

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.

Pentium D 820 1412
i7-12700K 16827
+1092%

Gaming performance

Pros & cons summary


Performance score 0.31 21.78
Physical cores 2 12
Threads 2 20
Chip lithography 90 nm 10 nm
Power consumption (TDP) 95 Watt 125 Watt

Pentium D 820 has 31.6% lower power consumption.

i7-12700K, on the other hand, has a 6925.8% higher aggregate performance score, 500% more physical cores and 900% more threads, and a 800% more advanced lithography process.

The Core i7-12700K is our recommended choice as it beats the Pentium D 820 in performance tests.


Should you still have questions on choice between Pentium D 820 and Core i7-12700K, ask them in Comments section, and we shall answer.

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Intel Pentium D 820
Pentium D 820
Intel Core i7-12700K
Core i7-12700K

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Community ratings

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Questions & comments

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