Core i7-12700 vs Core 2 Quad Q8400

Aggregate performance score

Core 2 Quad Q8400
2009
4 cores / 4 threads, 95 Watt
1.35
Core i7-12700
2022
12 cores / 20 threads, 65 Watt
20.10
+1389%

Core i7-12700 outperforms Core 2 Quad Q8400 by a whopping 1389% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad Q8400 and Core i7-12700 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2260290
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.3028.20
Architecture codenameYorkfield (2007−2009)Alder Lake-S (2022)
Release date19 April 2009 (15 years ago)January 2022 (2 years ago)
Launch price (MSRP)no data$349

Detailed specifications

Core 2 Quad Q8400 and Core i7-12700 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)12 (Dodeca-Core)
Threads420
Base clock speed2.66 GHz2.1 GHz
Boost clock speed0.67 GHz4.9 GHz
Bus rate1333 MHzno data
L1 cache64 KB (per core)80 KB (per core)
L2 cache4 MB (shared)1.25 MB (per core)
L3 cache0 KB25 MB (shared)
Chip lithography45 nmIntel 7 nm
Die size2x 82 mm2215 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)71 °Cno data
Number of transistors456 millionno data
64 bit support++
Windows 11 compatibility-+
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Quad Q8400 and Core i7-12700 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 configuration11
SocketFCLGA775,LGA775FCLGA1700
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Core i7-12700. 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-+
AVX-+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology-2.0
Hyper-Threading Technology-+
TSX-+
Idle States++
Thermal Monitoring++
SIPP-+
Demand Based Switching-no data
Turbo Boost Max 3.0no data+
FSB parity-no data
Deep Learning Boost-+

Security technologies

Core 2 Quad Q8400 and Core i7-12700 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 Core 2 Quad Q8400 and Core i7-12700 are enumerated here.

VT-dno data+
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Core i7-12700. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR5-4800, DDR4-3200
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data76.8 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel 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 Core 2 Quad Q8400 and Core i7-12700 integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Core 2 Quad Q8400 and Core i7-12700 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 Core 2 Quad Q8400 and Core i7-12700 integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Core i7-12700.

PCIe version2.05.0 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.

Core 2 Quad Q8400 1.35
i7-12700 20.10
+1389%

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.

Core 2 Quad Q8400 2064
i7-12700 30767
+1391%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Quad Q8400 328
i7-12700 2399
+631%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Quad Q8400 893
i7-12700 11242
+1159%

Gaming performance

Pros & cons summary


Performance score 1.35 20.10
Physical cores 4 12
Threads 4 20
Power consumption (TDP) 95 Watt 65 Watt

i7-12700 has a 1388.9% higher aggregate performance score, 200% more physical cores and 400% more threads, and 46.2% lower power consumption.

The Core i7-12700 is our recommended choice as it beats the Core 2 Quad Q8400 in performance tests.


Should you still have questions on choice between Core 2 Quad Q8400 and Core i7-12700, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core 2 Quad Q8400
Core 2 Quad Q8400
Intel Core i7-12700
Core i7-12700

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 1335 votes

Rate Core 2 Quad Q8400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 1040 votes

Rate Core i7-12700 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core 2 Quad Q8400 or Core i7-12700, agree or disagree with our judgements, or report an error or mismatch.