AMD Ryzen 5 8540U vs Intel Core 2 Quad Q9400s
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CPU comparison with benchmarks
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| AMD Ryzen 5 8540U | Intel Core 2 Quad Q9400s | |
CPU comparisonAMD Ryzen 5 8540U or Intel Core 2 Quad Q9400s - 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 Ryzen 5 8540U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 5 8540U was released in Q1/2024. The Intel Core 2 Quad Q9400s 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 Q9400s was released in Q1/2009. |
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| AMD Ryzen 5 (85) | Family | Intel Core2 Quad (19) |
| AMD Ryzen 8040 (20) | CPU group | Intel Core 2 Quad Q8000/Q9000 (16) |
| 7 | Generation | 2 |
| Hawk Point (Zen 4) | Architecture | Yorkfield (Penryn) |
| Mobile | Segment | Desktop / Server |
| AMD Ryzen 5 7540U | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 5 8540U has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the AMD Ryzen 5 8540U is 3.20 GHz (4.90 GHz) while the Intel Core 2 Quad Q9400s has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Core 2 Quad Q9400s is at 2.66 GHz. |
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| AMD Ryzen 5 8540U | Characteristic | Intel Core 2 Quad Q9400s |
| 6 | Cores | 4 |
| 12 | Threads | 4 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 3.20 GHz | Frequency | 2.66 GHz |
| 4.90 GHz | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe AMD Ryzen 5 8540U or Intel Core 2 Quad Q9400s 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. |
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| AMD Radeon 740M | GPU | no iGPU |
| 0.80 GHz | GPU frequency | -- |
| 2.50 GHz | GPU (Turbo) | -- |
| 10 | GPU Generation | -- |
| 4 nm | Technology | |
| 4 | Max. displays | |
| 4 | Compute units | -- |
| 256 | Shader | -- |
| Yes | Hardware Raytracing | No |
| AMD FSR | Frame Generation | No |
| 32 GB | Max. GPU Memory | -- |
| 12 | DirectX Version | -- |
Hardware codec supportA 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. |
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| AMD Radeon 740M | GPU | no iGPU |
| Decode / Encode | Codec h265 / HEVC (8 bit) | No |
| Decode / Encode | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| Decode | Codec VP9 | No |
| Decode | Codec VP8 | No |
| Decode / Encode | Codec AV1 | No |
| Decode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe AMD Ryzen 5 8540U can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The Intel Core 2 Quad Q9400s supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 17.1 GB/s. |
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| AMD Ryzen 5 8540U | Characteristic | Intel Core 2 Quad Q9400s |
| DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | DDR3-1066, DDR2-800 |
| 256 GB | Max. Memory | 16 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 120.0 GB/s | Max. Bandwidth | 17.1 GB/s |
| Yes | ECC | No |
| 6.00 MB | L2 Cache | 6.00 MB |
| 16.00 MB | L3 Cache | -- |
| 4.0 | PCIe version | -- |
| 20 | PCIe lanes | -- |
| 39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 5 8540U is 28 W, while the Intel Core 2 Quad Q9400s has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD Ryzen 5 8540U | Characteristic | Intel Core 2 Quad Q9400s |
| 28 W | TDP (PL1 / PBP) | 65 W |
| -- | TDP (PL2) | -- |
| 30 W | TDP up | -- |
| 15 W | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 5 8540U is manufactured in 4 nm and has 22.00 MB cache. The Intel Core 2 Quad Q9400s is manufactured in 45 nm and has a 6.00 MB cache. |
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| AMD Ryzen 5 8540U | Characteristic | Intel Core 2 Quad Q9400s |
| 4 nm | Technology | 45 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | MMX, SSE2, SSE3, SSE4.1 |
| FP8 | Socket | LGA 775 |
| AMD-V, SVM | Virtualization | VT-x, VT-d |
| Yes | AES-NI | No |
| Windows 10, Windows 11, Linux | Operating systems | Windows 10, Linux |
| Q1/2024 | Release date | Q1/2009 |
| -- | Release price | -- |
| show more data | show more data | |
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Rate these processors
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.
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AMD Ryzen 5 8540U
6C 12T @ 4.90 GHz |
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Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz |
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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.
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AMD Ryzen 5 8540U
6C 12T @ 3.20 GHz |
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Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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AMD Ryzen 5 8540U
6C 12T @ 4.90 GHz |
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Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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AMD Ryzen 5 8540U
6C 12T @ 3.20 GHz |
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Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz |
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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.
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AMD Ryzen 5 8540U
AMD Radeon 740M @ 2.50 GHz |
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Intel Core 2 Quad Q9400s
@ 0.00 GHz |
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Devices using this processor |
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| AMD Ryzen 5 8540U | Intel Core 2 Quad Q9400s |
| Unknown | Unknown |
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