Intel Core 2 Quad Q8400 vs Intel Core i7-920

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core 2 Quad Q8400 or Intel Core 2 Quad Q8400 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core 2 Quad Q8400 features 4 processor cores and has the capability to manage 4 threads concurrently.
It was released in Q2/2009 and belongs to the 2 generation of the Intel Core2 Quad series.
To use the Intel Core 2 Quad Q8400, you'll need a motherboard with a LGA 775 socket.
The Intel Core i7-920 features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q4/2008 and belongs to the 1 generation of the Intel Core i7 series.
To use the Intel Core i7-920, you'll need a motherboard with a LGA 1366 socket.
Intel Core 2 Quad Q8000/Q9000 Group Intel Core i7 900
2 Generation 1
Intel Core 2 Quad Q8400 Name Intel Core i7-920
Desktop / Server Segment Desktop / Server
Intel Core2 Quad Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core 2 Quad Q8400 has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the Intel Core 2 Quad Q8400 is 2.66 GHz
The Intel Core i7-920 has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-920 is 2.66 GHz
and turbo frequency for one core is 2.93 GHz.
None None 2.93 GHz
normal Core architecture normal
2.66 GHz Frequency 2.66 GHz
4 CPU Cores 4
No Overclocking No
No Hyperthreading Yes
4x Cores 4x
4 Threads 8
 
 

Internal Graphics

The Intel Core 2 Quad Q8400 does not have integrated graphics.
The Intel Core i7-920 does not have integrated graphics.
-- GPU (Turbo) --
-- Technology --
-- Direct X --
0 bytes Max. GPU Memory 0 bytes
-- Execution units --
-- Release date --
GPU name
-- Shaders --
-- GPU frequency --
-- Generation --
-- Max. displays --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
-- h265 / HEVC (8 bit) --
-- VP9 --
-- VP8 --
-- VC-1 --
-- JPEG --
-- h264 --
-- h265 / HEVC (10 bit) --
-- AVC --
-- AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 24.0 GB distributed across 3 memory channels. It offers a peak memory bandwidth of 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR3-1066, DDR2-800 Memory type DDR3-1066
-- Bandwidth 25.6 GB/s
No AES-NI No
No ECC No
pci PCIe pci
16.0 GB Max. Memory 24.0 GB
2 Memory channels 3
 
 

Thermal Management

The processor has a thermal design power (TDP) of 95 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 130 W watts.
95 W TDP (PL1 / PBP) 130 W
-- Tjunction max --
 
 

Technical details

The Intel Core 2 Quad Q8400 is manufactured using a 45 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-920 is manufactured using a 45 nm process.
In total, this processor boasts a generous 8.0 MB cache.
VT-x, VT-d Virtualization VT-x, VT-x EPT
45 nm Technology 45 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4.1, MMX, SSE2 ISA extensions SSE4.1, SSE4.2
-- Part Number BX80601920
Monolithic Chip design Monolithic
Q2/2009 Release date Q4/2008
-- Release price 305 $
4.0 MB L2-Cache 1.0 MB
Technical data sheet Documents Technical data sheet
0 bytes L3-Cache 8.0 MB
LGA 775 Socket LGA 1366
Windows 10, Linux Operating systems Windows 10, Linux
Yorkfield (Penryn) Architecture Bloomfield