AMD A8-3800 vs Intel Core 2 Quad Q9400

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CPU comparison with benchmarks


AMD A8-3800 CPU1 vs CPU2 Intel Core 2 Quad Q9400
AMD A8-3800 Intel Core 2 Quad Q9400

CPU comparison

AMD A8-3800 or Intel Core 2 Quad Q9400 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD A8-3800 has 4 cores with 4 threads and clocks with a maximum frequency of 2.70 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A8-3800 was released in Q3/2011.

The Intel Core 2 Quad Q9400 has 4 cores with 4 threads and clocks with a maximum frequency of 2.66 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Core 2 Quad Q9400 was released in Q3/2008.
AMD A (112) Family Intel Core2 Quad (19)
AMD A8-3000 (4) CPU group Intel Core 2 Quad Q8000/Q9000 (16)
1 Generation 2
Llano (K10) Architecture Yorkfield (Penryn)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A8-3800 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A8-3800 is 2.40 GHz (2.70 GHz) while the Intel Core 2 Quad Q9400 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Core 2 Quad Q9400 is at 2.66 GHz.

AMD A8-3800 Characteristic Intel Core 2 Quad Q9400
4 Cores 4
4 Threads 4
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? No
2.40 GHz Frequency 2.66 GHz
2.70 GHz Turbo Frequency (1 Core) --
2.70 GHz Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD A8-3800 Characteristic Intel Core 2 Quad Q9400
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A8-3800 or Intel Core 2 Quad Q9400 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

AMD Radeon HD 6550D GPU no iGPU
0.60 GHz GPU frequency --
-- GPU (Turbo) --
3 GPU Generation --
32 nm Technology
2 Max. displays
5 Compute units --
400 Shader --
No Hardware Raytracing No
No Frame Generation No
1 GB Max. GPU Memory --
11 DirectX Version --

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.

AMD Radeon HD 6550D GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The AMD A8-3800 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Intel Core 2 Quad Q9400 supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 17.1 GB/s.

AMD A8-3800 Characteristic Intel Core 2 Quad Q9400
DDR3-1600 Memory DDR3-1066, DDR2-800
Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache 6.00 MB
4.00 MB L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A8-3800 is 65 W, while the Intel Core 2 Quad Q9400 has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD A8-3800 Characteristic Intel Core 2 Quad Q9400
65 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A8-3800 is manufactured in 32 nm and has 4.00 MB cache. The Intel Core 2 Quad Q9400 is manufactured in 45 nm and has a 6.00 MB cache.

AMD A8-3800 Characteristic Intel Core 2 Quad Q9400
32 nm Technology 45 nm
Unknown Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4a ISA extensions MMX, SSE2, SSE3, SSE4.1
FM1 Socket LGA 775
AMD-V Virtualization VT-x, VT-d
No AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2011 Release date Q3/2008
130 $ Release price --
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Rate these processors

Here you can rate the AMD A8-3800 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:
Here you can rate the Intel Core 2 Quad Q9400 to help other visitors make their purchasing decisions. The average rating is 3.3 stars (4 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD A8-3800 (97%)
Intel Core 2 Quad Q9400 (100%)
⌀ Multi core performance in 2 CPU benchmarks
AMD A8-3800 (99%)
Intel Core 2 Quad Q9400 (93%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A8-3800 AMD A8-3800
4C 4T @ 2.70 GHz
368 (97%)
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
378 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A8-3800 AMD A8-3800
4C 4T @ 2.70 GHz
1354 (100%)
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
1163 (86%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD A8-3800 AMD A8-3800
4C 4T @ 2.70 GHz
1994 (97%)
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
2061 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD A8-3800 AMD A8-3800
AMD Radeon HD 6550D @ 0.60 GHz
480 (100%)
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
@ 0.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD A8-3800 AMD A8-3800
4C 4T @ 2.70 GHz
0 (0%)
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
230 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD A8-3800 AMD A8-3800
4C 4T @ 2.40 GHz
0 (0%)
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
891 (100%)

Devices using this processor

AMD A8-3800 Intel Core 2 Quad Q9400
Unknown Unknown

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