Core i9-14900KS vs Core 2 Extreme QX9775

Primary details

Comparing Core 2 Extreme QX9775 and Core i9-14900KS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	68
Place by popularity	not in top-100	8
Market segment	Desktop processor	Desktop processor
Power efficiency	no data	24.81
Architecture codename	Yorkfield (2007−2009)	Raptor Lake-R (2023−2024)
Release date	March 2008 (16 years ago)	March 2024 (recently)
Launch price (MSRP)	no data	$689

Detailed specifications

Core 2 Extreme QX9775 and Core i9-14900KS 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 cores	4 (Quad-Core)	24 (Tetracosa-Core)
Threads	4	32
Base clock speed	3.2 GHz	3.2 GHz
Boost clock speed	3.2 GHz	5.9 GHz
Bus rate	1600 MHz	no data
L1 cache	64K (per core)	80 KB (per core)
L2 cache	12 MB (shared)	2 MB (per core)
L3 cache	0 KB	36 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	2x 107 mm2	257 mm2
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	63 °C	no data
Number of transistors	820 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	+
VID voltage range	0.85V-1.35V	no data

Compatibility

Information on Core 2 Extreme QX9775 and Core i9-14900KS 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 configuration	1	1
Socket	LGA771	FCLGA1700
Power consumption (TDP)	150 Watt	150 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme QX9775 and Core i9-14900KS. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	+
FSB parity	-	no data
Deep Learning Boost	-	+

Security technologies

Core 2 Extreme QX9775 and Core i9-14900KS technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Extreme QX9775 and Core i9-14900KS 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 2 Extreme QX9775 and Core i9-14900KS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR5-5600, DDR4-3200
Maximum memory size	no data	192 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	89.6 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics 770
Quick Sync Video	-	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.65 GHz
Execution Units	no data	32

Graphics interfaces

Available interfaces and connections of Core 2 Extreme QX9775 and Core i9-14900KS integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Core 2 Extreme QX9775 and Core i9-14900KS integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2160 @ 60Hz
Max resolution over eDP	no data	5120 x 3200 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core 2 Extreme QX9775 and Core i9-14900KS integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme QX9775 and Core i9-14900KS.

PCIe version	no data	5.0 and 4.0
PCI Express lanes	no data	16

Pros & cons summary

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Physical cores	4	24
Threads	4	32

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