EPYC 7763 vs Core 2 Quad Q9400s

Primary details

Comparing Core 2 Quad Q9400s and EPYC 7763 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	24
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	3.26
Market segment	Desktop processor	Server
Series	no data	AMD EPYC
Power efficiency	no data	17.93
Architecture codename	Yorkfield (2007−2009)	Milan (2021−2023)
Release date	18 January 2009 (15 years ago)	12 January 2021 (3 years ago)
Launch price (MSRP)	no data	$7,890

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Quad Q9400s and EPYC 7763 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)	64 (Tetrahexaconta-Core)
Threads	4	128
Base clock speed	2.66 GHz	2.45 GHz
Boost clock speed	0.67 GHz	3.5 GHz
Bus rate	1333 MHz	no data
Multiplier	no data	24.5
L1 cache	64 KB (per core)	4 MB
L2 cache	6 MB (shared)	32 MB
L3 cache	0 KB	256 MB (shared)
Chip lithography	45 nm	7 nm+
Die size	2x 82 mm2	8x 81 mm2
Maximum case temperature (TCase)	76 °C	no data
Number of transistors	456 million	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q9400s and EPYC 7763 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	2
Socket	LGA775	SP3
Power consumption (TDP)	65 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400s and EPYC 7763. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Core 2 Quad Q9400s and EPYC 7763 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400s and EPYC 7763 are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400s and EPYC 7763. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4-3200
Maximum memory size	no data	4 TiB
Maximum memory bandwidth	no data	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

N/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9400s and EPYC 7763.

PCIe version	2.0	4.0
PCI Express lanes	no data	128

Pros & cons summary

---

Recency	18 January 2009	12 January 2021
Physical cores	4	64
Threads	4	128
Chip lithography	45 nm	7 nm
Power consumption (TDP)	65 Watt	280 Watt

---

Should you still have questions on choice between Core 2 Quad Q9400s and EPYC 7763, 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.

---