Core 2 Duo T7400 vs Core i7-620M

Place in the ranking	2313	2915
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	Intel Core 2 Duo
Power efficiency	3.38	1.34
Architecture codename	Arrandale (2010−2011)	Merom (2006−2008)
Release date	7 January 2010 (14 years ago)	28 August 2006 (18 years ago)
Launch price (MSRP)	$332	$286

Detailed specifications

Core i7-620M and Core 2 Duo T7400 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	4	2
Base clock speed	2.66 GHz	2.16 GHz
Boost clock speed	3.33 GHz	2.16 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	667 MHz
Multiplier	15	no data
L1 cache	64K (per core)	64 KB
L2 cache	256K (per core)	4 MB
L3 cache	4 MB (shared)	0 KB
Chip lithography	32 nm	65 nm
Die size	81+114 mm²	143 mm²
Maximum core temperature	105 °C	100 °C
Number of transistors	384 million	291 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1.1625V-1.3V

Compatibility

Information on Core i7-620M and Core 2 Duo T7400 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 (Uniprocessor)	1
Socket	BGA1288,PGA988	PBGA479,PPGA478
Power consumption (TDP)	35 Watt	34 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-620M and Core 2 Duo T7400. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	-
FMA	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	+	-
Hyper-Threading Technology	+	-
Idle States	+	-
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Demand Based Switching	no data	-
PAE	36 Bit	no data
FDI	+	no data
Fast Memory Access	+	no data
FSB parity	no data	-

Security technologies

Core i7-620M and Core 2 Duo T7400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-620M and Core 2 Duo T7400 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 i7-620M and Core 2 Duo T7400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	17.051 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for Previous Generation Intel Processors	no data
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	766 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i7-620M and Core 2 Duo T7400 integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-620M and Core 2 Duo T7400.

PCIe version	2.0	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.

i7-620M 1.25
+160%

Core 2 Duo T7400 0.48

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.

i7-620M 1979
+160%

Core 2 Duo T7400 761

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.

i7-620M 443
+89.3%

Core 2 Duo T7400 234

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.

i7-620M 823
+112%

Core 2 Duo T7400 388

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.

i7-620M 3044
+63.6%

Core 2 Duo T7400 1861

Gaming performance

Pros & cons summary

Performance score	1.25	0.48
Recency	7 January 2010	28 August 2006
Threads	4	2
Chip lithography	32 nm	65 nm
Power consumption (TDP)	35 Watt	34 Watt

i7-620M has a 160.4% higher aggregate performance score, an age advantage of 3 years, 100% more threads, and a 103.1% more advanced lithography process.

Core 2 Duo T7400, on the other hand, has 2.9% lower power consumption.

The Core i7-620M is our recommended choice as it beats the Core 2 Duo T7400 in performance tests.

Should you still have questions on choice between Core i7-620M and Core 2 Duo T7400, ask them in Comments section, and we shall answer.