AMD Ryzen 9 7900 vs AMD Ryzen 9 7940HX vs AMD Ryzen 5 7600X
AMD Ryzen 9 7900
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The AMD Ryzen 9 79 00 is a high-end desktop processorfrom the Raphael series with 12 cores and hyperthreading (SMT), which means it can process up to 24 threads simultaneously. Launched in early 2023, the Ryzen 9 7900 is the fastest 12-core processor with 65 watts TDP.
The Ryzen 9 7900 clocks at 3.7 GHz base clock and reaches up to 5.4 GHz on one core in Turbo mode. This is also the difference to the higher clocked Ryzen 9 7900X.
At first glance, the internal structure of the processor has not changed fundamentally. The AMD Ryzen 9 7900 is still based on the chiplet design consisting of two CCD clusters, each containing a CCX with 8 cores. However, the manufacturing process has been scaled down to 5 nm, which ensures higher clock rates. There is also the IO die, which contains the memory controller and the iGPU, among other things. This is now manufactured in a 6 nm structure width.
The AMD Ryzen 9 7900 can impress in games thanks to the significantly improved IPC.
AMD Ryzen 9 7940HX
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The AMD Ryzen 9 7940HX is a high-end notebook processor from the Dragon Range series with 16 cores and hyperthreading (SMT), which means it can process up to 32 threads simultaneously. The CPU uses the current Zen 4 architecture for the 16 cores and clocks these from 2.4 GHz (base clock) up to 5.2 GHz (single-core boost). The CPU offers 16 MB L2 cache and 64 MB L3 cache (i.e. a total of 80 MB cache). The 7940HX consists of three chiplets, two CCD clusters with 8 CPU cores each made with a 5nm node (71mm²) and one IO die on 6nm (122mm²), are all manufactured at TSMC's fabs.
The performance of the Ryzen 9 should be comparable to a Core i9-13900HX (24 hybrid cores, max 5.4 GHz) in the top range of mobile processors from 2024. AMD itself advertises a clear lead over the old Ryzen 9 6900HX (8 Zen 3 cores, 4.9 GHz), which can be explained by the additional cores, improved architecture and higher frequencies. Compared to the top model, the Ryzen 9 7945HX, the 7940HX is slightly lower clocked.
The chip also integrates 4x USB 3.2 Gen2 (10 Gbps) ports (no USB 4), 28 PCIe 5.0 lanes (for GPUs and SSDs), a dual-channel DDR5-5200 memory controller and a small AMD Radeon 610M graphics card (2CUs, 400 - 2200 MHz).
The R9 7940HX is specified with 55 watts TDP and can be configured up to 75 watts (cTDP).
AMD Ryzen 5 7600X
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The AMD Ryzen 5 7600X is a fast mid-range desktop processor of the Raphael series. It offers 6 cores based on the Zen 4 architecture that supports hyperthreading (12 threads). The cores clock from 4.7 (base) up to 5.7 GHz (single core boost). When all 6 cores are fully loaded, 5.3 GHz is the max. clock speed.
The performance of the R5 7600X is clearly better than the old Ryzen 5 5600X thanks to the improved architecture and modern 5nm process. The single core performance is very good thanks to the high turbo clock speed (-400 MHz compared to the high end CPUs like the Ryzen 9 7950X). The multi-threaded performance is of course not that competitive due to only 6 cores.
The Raphael series still uses a chiplet design with two CCD-clusters (each with 8 possible cores) in 5nm and an IO-die (including the memory controller and the Radeon Graphics iGPU) in 6nm.
The R5 7600X is rated 105 Watt TDP and Raphael is rather power hungry compared to the 5000 series.
| Model | AMD Ryzen 9 7900 | AMD Ryzen 9 7940HX | AMD Ryzen 5 7600X | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Codename | Raphael (Zen4) | Dragon Range-HX (Zen 4) | Raphael (Zen4) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series | AMD Raphael (Zen 4, Ryzen 7000) | AMD Dragon Range (Zen 4, Ryzen 7X4X/8X4X) | AMD Raphael (Zen 4, Ryzen 7000) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series: Raphael (Zen 4, Ryzen 7000) Raphael (Zen4) |
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| Clock | 3700 - 5400 MHz | 2400 - 5200 MHz | 4700 - 5300 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L1 Cache | 768 KB | 1 MB | 384 KB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L2 Cache | 12 MB | 16 MB | 6 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L3 Cache | 64 MB | 64 MB | 32 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cores / Threads | 12 / 24 | 16 / 32 16 x 5.2 GHz AMD Zen 4 | 6 / 12 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| TDP | 65 Watt | 55 Watt | 105 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Transistors | 9.9 Million | 9900 Million | CCD: 6,5 Mrd + IOD: 3,4 Mrd Million | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technology | 5 nm | 5 nm | 5 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voltage | 0.650 - 1.475V V | 0.650 - 1.475V V | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Die Size | 262 mm2 | 1x 70 (CCD) mm2 + 122 (I/O) mm2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| max. Temp. | 95 °C | 100 °C | 95 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Socket | AM5 (LGA 1718) | FL1 | AM5 (LGA 1718) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Features | MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, Precision Boost 2 | DDR5-5200 RAM, PCIe 5, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, Precision Boost 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iGPU | AMD Radeon Graphics (Ryzen 7000) ( - 2200 MHz) | AMD Radeon 610M (400 - 2200 MHz) | AMD Radeon Graphics (Ryzen 7000) (400 - 2200 MHz) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Architecture | x86 | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Announced | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Manufacturer | www.amd.com | www.amd.com | www.amd.com |
Benchmarks
Average Benchmarks AMD Ryzen 9 7900 → 100% n=5
Average Benchmarks AMD Ryzen 9 7940HX → 101% n=5
Average Benchmarks AMD Ryzen 5 7600X → 79% n=5
- Average benchmark values for this graphics card* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
