Core 2 Extreme X6800 vs Core i7-3840QM

Place in the ranking	1477	2710
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	Core 2 Extreme (Desktop)
Power efficiency	7.82	0.87
Architecture codename	Ivy Bridge (2012−2013)	Conroe (2006−2007)
Release date	3 September 2012 (12 years ago)	no data (2024 years ago)
Launch price (MSRP)	$568	no data

Detailed specifications

Core i7-3840QM and Core 2 Extreme (Desktop) X6800 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	2.8 GHz	no data
Boost clock speed	3.8 GHz	2.93 GHz
Bus rate	5 GT/s	1066 MHz
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	8 MB (shared)	no data
Chip lithography	22 nm	65 nm
Die size	160 mm²	no data
Maximum core temperature	105 °C	no data
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-3840QM and Core 2 Extreme (Desktop) X6800 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	no data
Socket	FCBGA1224,FCPGA988	no data
Power consumption (TDP)	45 Watt	75 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3840QM and Core 2 Extreme (Desktop) X6800. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	no data
My WiFi	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i7-3840QM and Core 2 Extreme (Desktop) X6800 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3840QM and Core 2 Extreme (Desktop) X6800 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3840QM and Core 2 Extreme (Desktop) X6800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 4000	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.3 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-3840QM and Core 2 Extreme (Desktop) X6800 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-3840QM and Core 2 Extreme (Desktop) X6800.

PCIe version	3.0	no data
PCI Express lanes	16	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.

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.

i7-3840QM 3.79
+441%

Core 2 Extreme X6800 0.70

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.

i7-3840QM 5905
+439%

Core 2 Extreme X6800 1095

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-3840QM 5145
+71.5%

Core 2 Extreme X6800 3000

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-3840QM 20135
+253%

Core 2 Extreme X6800 5700

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-3840QM 6998
+173%

Core 2 Extreme X6800 2568

Gaming performance

Pros & cons summary

Performance score	3.79	0.70
Physical cores	4	2
Threads	8	2
Chip lithography	22 nm	65 nm
Power consumption (TDP)	45 Watt	75 Watt

i7-3840QM has a 441.4% higher aggregate performance score, 100% more physical cores and 300% more threads, a 195.5% more advanced lithography process, and 66.7% lower power consumption.

The Core i7-3840QM is our recommended choice as it beats the Core 2 Extreme X6800 in performance tests.

Be aware that Core i7-3840QM is a notebook processor while Core 2 Extreme X6800 is a desktop one.

Should you still have questions on choice between Core i7-3840QM and Core 2 Extreme X6800, ask them in Comments section, and we shall answer.