Core i5-661 vs Core 2 Duo E7500

VS

Aggregate performance score

Core 2 Duo E7500
2009
2 cores / 2 threads, 65 Watt
0.72
Core i5-661
2010
2 cores / 4 threads, 87 Watt
1.56
+117%

Core i5-661 outperforms Core 2 Duo E7500 by a whopping 117% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E7500 and Core i5-661 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking27002124
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.12
Market segmentDesktop processorDesktop processor
Power efficiency1.051.70
Architecture codenameWolfdale (2008−2010)Clarkdale (2010−2011)
Release date10 January 2009 (15 years ago)7 January 2010 (14 years ago)
Launch price (MSRP)no data$252

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Duo E7500 and Core i5-661 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 speed2.93 GHz3.33 GHz
Boost clock speed0.93 GHz3.6 GHz
Bus rate1066 MHz2.5 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache3 MB (shared)256 KB (per core)
L3 cache0 KB4 MB (shared)
Chip lithography45 nm32 nm
Die size82 mm281 mm2
Maximum core temperatureno data70 °C
Maximum case temperature (TCase)74 °Cno data
Number of transistors228 million382 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E7500 and Core i5-661 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 configuration11
SocketLGA775FCLGA1156
Power consumption (TDP)65 Watt87 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E7500 and Core i5-661. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.2
AES-NI-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology-1.0
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring+-
Demand Based Switching--
PAEno data36 Bit
FDIno data+
FSB parity-no data

Security technologies

Core 2 Duo E7500 and Core i5-661 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 E7500 and Core i5-661 are enumerated here.

VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E7500 and Core i5-661. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3
Maximum memory sizeno data16.38 GB
Max memory channelsno data2
Maximum memory bandwidthno data21 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel HD Graphics for Previous Generation Intel Processors
Clear Video HDno data+

Graphics interfaces

Available interfaces and connections of Core 2 Duo E7500 and Core i5-661 integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E7500 and Core i5-661.

PCIe version2.02.0
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 E7500 0.72
i5-661 1.56
+117%

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 Duo E7500 1148
i5-661 2471
+115%

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 Duo E7500 346
i5-661 483
+39.6%

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 Duo E7500 564
i5-661 953
+69%

Gaming performance

Pros & cons summary


Performance score 0.72 1.56
Recency 10 January 2009 7 January 2010
Threads 2 4
Chip lithography 45 nm 32 nm
Power consumption (TDP) 65 Watt 87 Watt

Core 2 Duo E7500 has 33.8% lower power consumption.

i5-661, on the other hand, has a 116.7% higher aggregate performance score, an age advantage of 11 months, 100% more threads, and a 40.6% more advanced lithography process.

The Core i5-661 is our recommended choice as it beats the Core 2 Duo E7500 in performance tests.


Should you still have questions on choice between Core 2 Duo E7500 and Core i5-661, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E7500
Core 2 Duo E7500
Intel Core i5-661
Core i5-661

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Community ratings

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Questions & comments

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