Intel Core i7-660UM vs Core 2 Duo T9400

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Combined performance score

Core 2 Duo T9400
0.65

Core i7-660UM outperforms Core 2 Duo T9400 by 29% in our combined benchmark results.

General info

Comparing Core 2 Duo T9400 and Core i7-660UM processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking26012433
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core 2 DuoIntel Core i7
Architecture codenamePenryn (2008−2011)Arrandale (2010−2011)
Release date15 July 2008 (15 years old)7 January 2010 (14 years old)
Launch price (MSRP)$316$317
Current price$310 (1x MSRP)no data

Technical specs

Core 2 Duo T9400 and Core i7-660UM 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 cores2 (Dual-core)2 (Dual-core)
Threads24
Base clock speed2.53 GHz1.33 GHz
Boost clock speed2.53 GHz2.4 GHz
Bus support1066 MHz2500 MHz
L1 cache128 KB128 KB
L2 cache6 MB512 KB
L3 cache6 MB L2 Cache4 MB
Chip lithography45 nm32 nm
Die size107 mm281+144 mm2
Maximum core temperature105 °C105 °C
Number of transistors410 Million382+177 Million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo
VID voltage range1.05V-1.162Vno data

Compatibility

Information on Core 2 Duo T9400 and Core i7-660UM 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 configurationno data1
SocketBGA479,BGA956,PBGA479,PGA478BGA1288
Power consumption (TDP)35 Watt18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T9400 and Core i7-660UM. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NIno data+
FMAno data+
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology-+
Hyper-Threading Technology-+
Idle States-+
Thermal Monitoringno data+
Flex Memory Accessno data+
Demand Based Switching-no data
PAEno data36 Bit
FDIno data+
Fast Memory Accessno data+
FSB parity-no data
StatusDiscontinuedDiscontinued

Security technologies

Core 2 Duo T9400 and Core i7-660UM technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T9400 and Core i7-660UM are enumerated here.

VT-dno data+
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T9400 and Core i7-660UM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3-800
Maximum memory sizeno data8 GB
Max memory channelsno data2
Maximum memory bandwidthno data12.8 GB/s
ECC memory supportno data-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel® HD Graphics for Previous Generation Intel® Processors
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data500 MHz

Graphics interfaces

Available interfaces and connections of Core 2 Duo T9400 and Core i7-660UM integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T9400 and Core i7-660UM.

PCIe versionno data2.0
PCI Express lanesno data16

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 Duo T9400 0.65
i7-660UM 0.84
+29.2%

Core i7-660UM outperforms Core 2 Duo T9400 by 29% in our combined benchmark results.


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.

Benchmark coverage: 68%

Core 2 Duo T9400 1004
i7-660UM 1284
+27.9%

Core i7-660UM outperforms Core 2 Duo T9400 by 28% in Passmark.

Gaming performance

Advantages and disadvantages


Performance score 0.65 0.84
Recency 15 July 2008 7 January 2010
Threads 2 4
Cost $316 $317
Chip lithography 45 nm 32 nm
Power consumption (TDP) 35 Watt 18 Watt

The Core i7-660UM is our recommended choice as it beats the Core 2 Duo T9400 in performance tests.


Should you still have questions on choice between Core 2 Duo T9400 and Core i7-660UM, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core 2 Duo T9400
Core 2 Duo T9400
Intel Core i7-660UM
Core i7-660UM

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