Intel Pentium G645T vs Core 2 Duo E8400

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Combined performance score

Core 2 Duo E8400
0.76

Pentium G645T outperforms Core 2 Duo E8400 by 5% in our combined benchmark results.

General info

Comparing Core 2 Duo E8400 and Pentium G645T processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking25102470
Place by popularitynot in top-100not in top-100
Value for money1.864.93
Market segmentDesktop processorDesktop processor
Architecture codenameWolfdale (2008−2010)Sandy Bridge (2011−2013)
Release date1 January 2008 (16 years old)2 September 2012 (11 years old)
Current price$70 $43
Value for money

Performance per price, higher is better.

Pentium G645T has 165% better value for money than Core 2 Duo E8400.

Technical specs

Core 2 Duo E8400 and Pentium G645T 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 GHz2.5 GHz
Boost clock speed3 GHz2.5 GHz
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 temperature72 °C65 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistors410 million504 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Duo E8400 and Pentium G645T 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 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Pentium G645T. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NI--
AVXno data+
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
StatusDiscontinuedDiscontinued

Security technologies

Core 2 Duo E8400 and Pentium G645T 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 G645T 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 G645T. 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 G645T integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Pentium G645T.

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 E8400 0.76
Pentium G645T 0.80
+5.3%

Pentium G645T outperforms Core 2 Duo E8400 by 5% 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 E8400 1165
Pentium G645T 1228
+5.4%

Pentium G645T outperforms Core 2 Duo E8400 by 5% in Passmark.

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.

Benchmark coverage: 42%

Core 2 Duo E8400 369
+3.9%
Pentium G645T 355

Core 2 Duo E8400 outperforms Pentium G645T by 4% in GeekBench 5 Single-Core.

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.

Benchmark coverage: 42%

Core 2 Duo E8400 619
+2.1%
Pentium G645T 606

Core 2 Duo E8400 outperforms Pentium G645T by 2% in GeekBench 5 Multi-Core.

Gaming performance

Advantages and disadvantages


Performance score 0.76 0.80
Recency 1 January 2008 2 September 2012
Chip lithography 45 nm 32 nm
Power consumption (TDP) 65 Watt 35 Watt

We couldn't decide between Core 2 Duo E8400 and Pentium G645T. The differences in performance seem too small.


Should you still have questions on choice between Core 2 Duo E8400 and Pentium G645T, ask them in Comments section, and we shall answer.

User ratings

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Intel Core 2 Duo E8400
Core 2 Duo E8400
Intel Pentium G645T
Pentium G645T

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Questions and comments

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