Pentium 977 vs Core 2 Extreme X7800

Primary Details

Comparing Core 2 Extreme X7800 and Pentium 977 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2551	2544
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Extreme	Intel Pentium
Architecture codename	Merom XE (2007)	Sandy Bridge (2011−2013)
Release date	17 July 2007 (16 years ago)	1 January 2012 (12 years ago)
Launch price (MSRP)	$851	$134
Current price	$299 (0.4x MSRP)	$457 (3.4x MSRP)

Detailed Specifications

Core 2 Extreme X7800 and Pentium 977 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Base clock speed	2.6 GHz	1.4 GHz
Boost clock speed	2.6 GHz	1.4 GHz
Bus support	800 MHz	no data
L1 cache	128 KB	64K (per core)
L2 cache	4 MB	256K (per core)
L3 cache	4 MB L2 Cache	2 MB (shared)
Chip lithography	65 nm	32 nm
Die size	143 mm2	131 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	291 Million	504 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	1.1V-1.375V	no data

Compatibility

Information on Core 2 Extreme X7800 and Pentium 977 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	no data	1
Socket	PPGA478	FCBGA1023
Power consumption (TDP)	44 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme X7800 and Pentium 977. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2
AES-NI	no data	-
FMA	no data	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	no data	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	no data	+
Thermal Monitoring	no data	+
Flex Memory Access	no data	+
Demand Based Switching	-	-
FDI	no data	+
Fast Memory Access	no data	+
FSB parity	-	no data
Status	Discontinued	Discontinued

Security technologies

Core 2 Extreme X7800 and Pentium 977 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Extreme X7800 and Pentium 977 are enumerated here.

VT-d	no data	-
VT-x	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7800 and Pentium 977. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3
Maximum memory size	no data	16.38 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21.3 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® HD Graphics for 2nd Generation Intel® Processors
Graphics max frequency	no data	1 GHz

Graphics interfaces

Available interfaces and connections of Core 2 Extreme X7800 and Pentium 977 integrated GPUs.

Number of displays supported	no data	2
eDP	no data	+
DisplayPort	no data	+
HDMI	no data	+
SDVO	no data	+
CRT	no data	+

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme X7800 and Pentium 977.

PCIe version	no data	2.0
PCI Express lanes	no data	16

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.

Pros & Cons Summary

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Recency	17 July 2007	1 January 2012
Cost	$851	$134
Chip lithography	65 nm	32 nm
Power consumption (TDP)	44 Watt	17 Watt

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Should you still have questions on choice between Core 2 Extreme X7800 and Pentium 977, ask them in Comments section, and we shall answer.

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