AMD Ryzen 9 7900 vs AMD Ryzen 7 5700X

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.

The AMD Ryzen 7 5700X is a desktop processor with 8 cores and simultaneous multithreading (SMT), which means it can process 16 threads simultaneously. In April 2022, AMD presented the Ryzen 7 5700X, a new 8-core processor that is very similar to the AMD Ryzen 7 5800X. However, due to the lower TDP, there are no restrictions on the clock frequency. Nevertheless, the AMD Ryzen 7 5700X reaches up to 4.6 GHz in boost, which is only 100 MHz less than the AMD Ryzen 7 5800X. However, the base clock drops significantly to 3.4 GHz.

The performance of the AMD Ryzen 7 5700X is consistently excellent in all applications. The native 8-core can really show off its strengths, especially in multi-threaded applications, although the single-core performance has also been significantly improved compared to the older Zen 2 architecture.

The internal structure of the processor is similar to the AMD Ryzen 7 5800X. The CCX modules are also connected to each other via the I/O die, which we already know from Zen2. However, according to AMD, the Infinity Fabric should now achieve clock rates of up to 2 GHz, which in turn enables a RAM clock rate of 4,000 MHz without any loss of performance.

In terms of manufacturing processes, AMD also relies on TSCM for the 7nm production of the CPU cores in the Vermeer processors, although the I/O die is still supplied in 12 nm by Globalfoundries.

The AMD Ryzen 7 5700X is impressive in gaming thanks to the significantly improved IPC compared to Zen2. In terms of power consumption, the AMD Ryzen 7 5700X impresses with its low TDP of just 65 watts. This means that the processor can also be operated with a compact air cooler without any problems. The AMD Ryzen 7 5800X is operated with a TDP of 105 watts.