Core 2 Duo T7800 vs Core i7-965

Primary details

Comparing Core i7-965 and Core 2 Duo T7800 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1848	2805
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.45	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Core 2 Duo
Power efficiency	1.57	1.56
Architecture codename	Bloomfield (2008−2010)	Merom (2006−2008)
Release date	November 2008 (16 years ago)	18 August 2007 (17 years ago)
Launch price (MSRP)	$1,509	$515

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-965 and Core 2 Duo T7800 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)	2 (Dual-core)
Threads	8	2
Base clock speed	3.2 GHz	2.6 GHz
Boost clock speed	3.46 GHz	2.6 GHz
Bus rate	6.4 GT/s	800 MHz
L1 cache	64 KB (per core)	64 KB
L2 cache	256 KB (per core)	4 MB
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	65 nm
Die size	263 mm2	143 mm2
Maximum core temperature	68 °C	100 °C
Number of transistors	731 million	291 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-
VID voltage range	no data	1.075V-1.25V

Compatibility

Information on Core i7-965 and Core 2 Duo T7800 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	FCLGA1366	PBGA479,PPGA478
Power consumption (TDP)	130 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-965 and Core 2 Duo T7800. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	-
Hyper-Threading Technology	+	-
Idle States	+	no data
Demand Based Switching	-	-
PAE	36 Bit	no data
FSB parity	no data	-

Security technologies

Core i7-965 and Core 2 Duo T7800 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-965 and Core 2 Duo T7800 are enumerated here.

VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-965 and Core 2 Duo T7800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	24 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

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Pros & cons summary

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Performance score	2.16	0.58
Physical cores	4	2
Threads	8	2
Chip lithography	45 nm	65 nm
Power consumption (TDP)	130 Watt	35 Watt

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Should you still have questions on choice between Core i7-965 and Core 2 Duo T7800, ask them in Comments section, and we shall answer.

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