Core 2 Quad Q8400 vs Core 2 Duo T9300

#ad 
Buy on Amazon
VS

Aggregate performance score

Core 2 Duo T9300
2008
2 cores / 2 threads, 35 Watt
1.09
Core 2 Quad Q8400
2009
4 cores / 4 threads, 95 Watt
1.35
+23.9%

Core 2 Quad Q8400 outperforms Core 2 Duo T9300 by a significant 24% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo T9300 and Core 2 Quad Q8400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking24142260
Place by popularitynot in top-100not in top-100
Market segmentLaptopDesktop processor
SeriesIntel Core 2 Duono data
Power efficiency2.841.30
Architecture codenamePenryn (2008−2011)Yorkfield (2007−2009)
Release date10 January 2008 (16 years ago)19 April 2009 (15 years ago)
Launch price (MSRP)$316no data

Detailed specifications

Core 2 Duo T9300 and Core 2 Quad Q8400 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)4 (Quad-Core)
Threads24
Base clock speed2.5 GHz2.66 GHz
Boost clock speed2.5 GHz0.67 GHz
Bus rate800 MHz1333 MHz
L1 cache128 KB64 KB (per core)
L2 cache6 MB4 MB (shared)
L3 cache6 MB L2 Cache0 KB
Chip lithography45 nm45 nm
Die size107 mm22x 82 mm2
Maximum core temperature105 °Cno data
Maximum case temperature (TCase)no data71 °C
Number of transistors410 Million456 million
64 bit support++
Windows 11 compatibility--
VID voltage range1V-1.25V0.85V-1.3625V

Compatibility

Information on Core 2 Duo T9300 and Core 2 Quad Q8400 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,PGA478FCLGA775,LGA775
Power consumption (TDP)35 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T9300 and Core 2 Quad Q8400. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring-+
Demand Based Switching--
FSB parity--

Security technologies

Core 2 Duo T9300 and Core 2 Quad Q8400 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 T9300 and Core 2 Quad Q8400 are enumerated here.

VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T9300 and Core 2 Quad Q8400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T9300 and Core 2 Quad Q8400.

PCIe versionno data2.0

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 T9300 1.09
Core 2 Quad Q8400 1.35
+23.9%

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 T9300 1670
Core 2 Quad Q8400 2064
+23.6%

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 T9300 313
Core 2 Quad Q8400 328
+4.8%

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 T9300 505
Core 2 Quad Q8400 893
+76.8%

Gaming performance

Pros & cons summary


Performance score 1.09 1.35
Recency 10 January 2008 19 April 2009
Physical cores 2 4
Threads 2 4
Power consumption (TDP) 35 Watt 95 Watt

Core 2 Duo T9300 has 171.4% lower power consumption.

Core 2 Quad Q8400, on the other hand, has a 23.9% higher aggregate performance score, an age advantage of 1 year, and 100% more physical cores and 100% more threads.

The Core 2 Quad Q8400 is our recommended choice as it beats the Core 2 Duo T9300 in performance tests.

Be aware that Core 2 Duo T9300 is a notebook processor while Core 2 Quad Q8400 is a desktop one.


Should you still have questions on choice between Core 2 Duo T9300 and Core 2 Quad Q8400, ask them in Comments section, and we shall answer.

Vote for your favorite

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


Intel Core 2 Duo T9300
Core 2 Duo T9300
Intel Core 2 Quad Q8400
Core 2 Quad Q8400

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.2 324 votes

Rate Core 2 Duo T9300 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4 1335 votes

Rate Core 2 Quad Q8400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core 2 Duo T9300 or Core 2 Quad Q8400, agree or disagree with our judgements, or report an error or mismatch.