Intel Core i5-12450HX vs Intel Core 2 Extreme QX9775

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CPU comparison with benchmarks


Intel Core i5-12450HX CPU1 vs CPU2 Intel Core 2 Extreme QX9775
Intel Core i5-12450HX Intel Core 2 Extreme QX9775

CPU comparison

In this CPU comparison, we compare the Intel Core i5-12450HX and the Intel Core 2 Extreme QX9775 and use benchmarks to check which processor is faster.

We compare the Intel Core i5-12450HX 8 core processor released in Q2/2022 with the Intel Core 2 Extreme QX9775 which has 4 CPU cores and was introduced in Q1/2008.
Intel Core i5 (331) Family Intel Core2 Extreme (7)
Intel Core i 12000H (23) CPU group Intel Core 2 Extreme QX9000 (3)
12 Generation 2
Alder Lake H Architecture Yorkfield (Penryn)
Mobile Segment Desktop / Server
-- Predecessor --
Intel Core i5-13450HX Successor --

CPU Cores and Base Frequency

The Intel Core i5-12450HX is a 8 core processor with a clock frequency of 2.40 GHz (4.40 GHz). The processor can compute 12 threads at the same time. The Intel Core 2 Extreme QX9775 clocks with 3.20 GHz, has 4 CPU cores and can calculate 4 threads in parallel.

Intel Core i5-12450HX Characteristic Intel Core 2 Extreme QX9775
8 Cores 4
12 Threads 4
hybrid (big.LITTLE) Core architecture normal
Yes Hyperthreading No
Yes Overclocking ? Yes
2.40 GHz (4.40 GHz)
4x Golden Cove
A-Core 3.20 GHz
1.80 GHz (3.10 GHz)
4x Gracemont
B-Core --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i5-12450HX Characteristic Intel Core 2 Extreme QX9775
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

Intel UHD Graphics 770 GPU no iGPU
0.30 GHz GPU frequency --
1.30 GHz GPU (Turbo) --
11 GPU Generation --
10 nm Technology
3 Max. displays
32 Compute units --
256 Shader --
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory --
12 DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Intel UHD Graphics 770 GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

Up to 128 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i5-12450HX, while the Intel Core 2 Extreme QX9775 supports a maximum of 16 GB of memory with a maximum memory bandwidth of 17.1 GB/s enabled.

Intel Core i5-12450HX Characteristic Intel Core 2 Extreme QX9775
LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200 Memory DDR3-1066, DDR2-800
128 GB Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
83.2 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache 12.00 MB
12.00 MB L3 Cache --
5.0 PCIe version --
20 PCIe lanes --
78.8 GB/s PCIe Bandwidth --

Thermal Management

The Intel Core i5-12450HX has a TDP of 55 W. The TDP of the Intel Core 2 Extreme QX9775 is 150 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i5-12450HX Characteristic Intel Core 2 Extreme QX9775
55 W TDP (PL1 / PBP) 150 W
157 W TDP (PL2) --
-- TDP up --
45 W TDP down --
100 °C Tjunction max. --

Technical details

The Intel Core i5-12450HX has 12.00 MB cache and is manufactured in 10 nm. The cache of Intel Core 2 Extreme QX9775 is at 12.00 MB. The processor is manufactured in 45 nm.

Intel Core i5-12450HX Characteristic Intel Core 2 Extreme QX9775
10 nm Technology 45 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX2+ ISA extensions MMX, SSE2, SSE3, SSE4.1
BGA 1744 Socket LGA 775
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-d
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q2/2022 Release date Q1/2008
-- Release price --
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Rate these processors

Here you can rate the Intel Core i5-12450HX to help other visitors make their purchasing decisions. The average rating is 4.6 stars (7 ratings). Rate now:
Here you can rate the Intel Core 2 Extreme QX9775 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 0 CPU benchmarks
Intel Core i5-12450HX (0%)
Intel Core 2 Extreme QX9775 (0%)
⌀ Multi core performance in 1 CPU benchmarks
Intel Core i5-12450HX (100%)
Intel Core 2 Extreme QX9775 (14%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i5-12450HX Intel Core i5-12450HX
8C 12T @ 2.40 GHz
18874 (100%)
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
2641 (14%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-12450HX Intel Core i5-12450HX
8C 12T @ 4.40 GHz
0 (0%)
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
454 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-12450HX Intel Core i5-12450HX
8C 12T @ 2.40 GHz
0 (0%)
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
1592 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core i5-12450HX Intel Core i5-12450HX
Intel UHD Graphics 770 @ 1.30 GHz
665 (100%)
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
@ 0.00 GHz
0 (0%)

Devices using this processor

Intel Core i5-12450HX Intel Core 2 Extreme QX9775
Unknown Unknown

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