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Differences
Top features of Intel Core 2 Quad Q6400
-
Performance per watt105 W
130 W
About 1.24 0.97 times less performance per watt
Top features of Intel Core 2 Extreme QX6700
-
Higher clock speed2.66 GHz
2.13 GHz
Around 20% better clock speed
Specifications
Complete list of technical specificationsCPU generation and family
Let's find out which one of Intel Core 2 Quad Q6400 and Intel Core 2 Extreme QX6700 is of a more recent generation, and what segment it belongs to.
| Specification | Value |
|---|---|
| Name |
Intel Core 2 Quad Q6400
Intel Core 2 Extreme QX6700
|
| Family |
Intel Core2 Quad
Intel Core2 Extreme
|
| CPU group |
Intel Core 2 Quad Q6000
Intel Core 2 Extreme QX6000
|
| Segment |
Desktop / Server
Desktop / Server
|
| Generation |
1
1
|
CPU Cores and Base Frequency
In this block we are going to compare Intel Core 2 Quad Q6400 vs Intel Core 2 Extreme QX6700 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.
| Specification | Value |
|---|---|
| CPU Cores / Threads |
4 / 4
4 / 4
|
| Core architecture |
normal
normal
|
| Cores |
4x
4x
|
| Hyperthreading / SMT |
No
No
|
| Overclocking |
No
Yes
|
| Frequency |
2.13 GHz
2.66 GHz
|
Internal Graphics
Common specifications for integrated graphics cards in Intel Core 2 Quad Q6400 and Intel Core 2 Extreme QX6700 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.
| Specification | Value |
|---|---|
| GPU name |
no iGPU
no iGPU
|
| GPU (Turbo) |
No turbo
No turbo
|
Hardware codec support
Let's compare the support of video codecs between Intel Core 2 Quad Q6400 and Intel Core 2 Extreme QX6700. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.
| Specification | Value |
|---|---|
| h265 / HEVC (8 bit) |
No
No
|
| h265 / HEVC (10 bit) |
No
No
|
| h264 |
No
No
|
| VP8 |
No
No
|
| VP9 |
No
No
|
| AV1 |
No
No
|
| AVC |
No
No
|
| VC-1 |
No
No
|
| JPEG |
No
No
|
Memory & PCIe
To choose the best model between Intel Core 2 Quad Q6400 and Intel Core 2 Extreme QX6700 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.
| Specification | Value |
|---|---|
| Memory type |
DDR2-800, DDR3-1066
DDR2-800, DDR3-1066
|
| Max. Memory |
16 GB
16 GB
|
| Memory channels |
2 (Dual Channel)
2 (Dual Channel)
|
| ECC |
No
No
|
| AES-NI |
No
No
|
Thermal Management
Let's find out what TDP value would be better for Intel Core 2 Quad Q6400 or Intel Core 2 Extreme QX6700? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.
| Specification | Value |
|---|---|
| TDP (PL1) |
105 W
130 W
|
Technical details
Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Core 2 Quad Q6400 and Intel Core 2 Extreme QX6700 CPUs along with a list of ISA extensions.
| Specification | Value |
|---|---|
| Technology |
65 nm
65 nm
|
| Chip design |
Monolithic
Monolithic
|
| Socket |
LGA 775
LGA 775
|
| L2-Cache |
8.00 MB
8.00 MB
|
| Architecture |
Kentsfield (Core)
Kentsfield (Core)
|
| Operating systems |
Windows 10, Linux
Windows 10, Linux
|
| Virtualization |
VT-x
VT-x
|
| Instruction set (ISA) |
x86-64 (64 bit)
x86-64 (64 bit)
|
| ISA extensions |
MMX, SSE2, SSE3
MMX, SSE2, SSE3
|
| Release date |
Q1/2007
Q4/2006
|
| Documents |
--
Technical data sheet
|
