Pentium G645 vs Core 2 Duo E8400

VS

Aggregate performance score

Core 2 Duo E8400
2008
2 cores / 2 threads, 65 Watt
0.73
Pentium G645
2012
2 cores / 2 threads, 65 Watt
0.90
+23.3%

Pentium G645 outperforms Core 2 Duo E8400 by a significant 23% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo E8400 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking26852549
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.06
Market segmentDesktop processorDesktop processor
Power efficiency1.061.31
Architecture codenameWolfdale (2008−2010)Sandy Bridge (2011−2013)
Release date1 January 2008 (16 years ago)2 September 2012 (12 years ago)
Launch price (MSRP)no data$80

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Duo E8400 and Pentium G645 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)
Threads22
Base clock speed3 GHz2.9 GHz
Boost clock speed3 GHz2.9 GHz
Bus rate1333 MHz5 GT/s
L1 cache64 KB (per core)64 KB (per core)
L2 cache6 MB (shared)256 KB (per core)
L3 cache0 KB3 MB (shared)
Chip lithography45 nm32 nm
Die size104 mm2131 mm2
Maximum core temperatureno data69 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors410 million504 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E8400 and Pentium G645 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
SocketLGA775FCLGA1155
Power consumption (TDP)65 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Pentium G645. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Demand Based Switching-no data
FDIno data+
Fast Memory Accessno data+
FSB parity-no data

Security technologies

Core 2 Duo E8400 and Pentium G645 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 E8400 and Pentium G645 are enumerated here.

VT-d+-
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E8400 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data17 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel HD Graphics for 2nd Generation Intel Processors
Graphics max frequencyno data1.1 GHz

Graphics interfaces

Available interfaces and connections of Core 2 Duo E8400 and Pentium G645 integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Pentium G645.

PCIe version2.02.0

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 Duo E8400 0.73
Pentium G645 0.90
+23.3%

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 E8400 1165
Pentium G645 1429
+22.7%

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 E8400 370
Pentium G645 454
+22.7%

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 E8400 604
Pentium G645 773
+28%

Gaming performance

Pros & cons summary


Performance score 0.73 0.90
Recency 1 January 2008 2 September 2012
Chip lithography 45 nm 32 nm

Pentium G645 has a 23.3% higher aggregate performance score, an age advantage of 4 years, and a 40.6% more advanced lithography process.

The Pentium G645 is our recommended choice as it beats the Core 2 Duo E8400 in performance tests.


Should you still have questions on choice between Core 2 Duo E8400 and Pentium G645, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo E8400
Core 2 Duo E8400
Intel Pentium G645
Pentium G645

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Community ratings

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