Pentium G840 vs Core 2 Extreme X9000

Place in the ranking	2682	2584
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	4.61
Market segment	Laptop	Desktop processor
Series	Intel Core 2 Extreme	no data
Architecture codename	Penryn (2008−2011)	Sandy Bridge (2011−2013)
Release date	10 January 2008 (16 years ago)	22 May 2011 (13 years ago)
Launch price (MSRP)	$851	$60

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Extreme X9000 and Pentium G840 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	2.8 GHz	2.8 GHz
Boost clock speed	2.8 GHz	2.8 GHz
Bus rate	800 MHz	no data
L1 cache	128 KB	64 KB (per core)
L2 cache	6 MB	256 KB (per core)
L3 cache	6 MB L2 Cache	3 MB (shared)
Chip lithography	45 nm	32 nm
Die size	107 mm²	131 mm²
Maximum core temperature	105 °C	69 °C
Number of transistors	410 Million	504 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1V-1.275V	no data

Compatibility

Information on Core 2 Extreme X9000 and Pentium G840 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	PGA478	FCLGA1155
Power consumption (TDP)	44 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme X9000 and Pentium G840. 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	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	no data	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
Demand Based Switching	-	no data
FDI	no data	+
Fast Memory Access	no data	+
FSB parity	-	no data
Status	Discontinued	Discontinued

Security technologies

Core 2 Extreme X9000 and Pentium G840 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Extreme X9000 and Pentium G840 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 X9000 and Pentium G840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR3
Maximum memory size	no data	32 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21 GB/s

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	1.1 GHz

Graphics interfaces

Available interfaces and connections of Core 2 Extreme X9000 and Pentium G840 integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme X9000 and Pentium G840.

PCIe version

no data

2.0

Synthetic benchmark performance

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

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.

Core 2 Extreme X9000 0.72

Pentium G840 0.82
+13.9%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Core 2 Extreme X9000 1099

Pentium G840 1253
+14%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Core 2 Extreme X9000 421

Pentium G840 450
+6.9%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Core 2 Extreme X9000 719

Pentium G840 784
+9%

Gaming performance

Pros & cons summary

Performance score	0.72	0.82
Recency	10 January 2008	22 May 2011
Chip lithography	45 nm	32 nm
Power consumption (TDP)	44 Watt	65 Watt

Core 2 Extreme X9000 has 47.7% lower power consumption.

Pentium G840, on the other hand, has a 13.9% higher aggregate performance score, an age advantage of 3 years, and a 40.6% more advanced lithography process.

The Pentium G840 is our recommended choice as it beats the Core 2 Extreme X9000 in performance tests.

Be aware that Core 2 Extreme X9000 is a notebook processor while Pentium G840 is a desktop one.

Should you still have questions on choice between Core 2 Extreme X9000 and Pentium G840, ask them in Comments section, and we shall answer.