AMD Ryzen 9000 with faster L1/L2 caches

First independent test confirms AMD claims.

During the Computex Keynote, AMD CEO Dr. Lisa Su introduced a new family of AM5 processors called Ryzen 9000 or “Granite Ridge.” This series features a brand-new Zen5 architecture, which will be available to consumers starting next month.

While the new architecture doesn’t bring major changes to core count or clock speeds, AMD claims increased CPU core performance due to doubled instruction and data bandwidth from L2 to L1 and L1 to FP registers. This claim has not yet been put to the test.

Ryzen 9000 Cache, Source: AMD

We do not know when AMD will lift the review embargo on the Ryzen 9000 series, but it is clear that engineering samples were available to several entities even before the new series was made official. These samples are now being used for testing while new BIOS updates are being polished for existing 600-series and upcoming 800-series motherboards.

Reportedly, someone got their hands on the 6-core Ryzen 5 9600X processor, currently the lowest tier in the new lineup. This processor features a base clock of 3.9 GHz, a boost clock of 5.4 GHz, and comes equipped with 384KB of L1 cache, 6MB of L2 cache, and 32MB of L3 cache. Unlike the 9900X and 9950X, this processor only has one CCD (Core Compute Die).

Ryzen 9 9600X AIDA64 test, Source: HXL/QQ

AIDA64 Test

L1 Cache

• Ryzen 9 9600X : 3756.4 GB/s READ , 1884.4 GB/s WRITE , 3755.9 GB/s COPY , 0.8ns LATENCY
• Ryzen 5 7600X : 2029.6 GB/s READ , 1026.9 GB/s WRITE , 2048.1 GB/s COPY , 0.7ns LATENCY

L2 Cache:

• Ryzen 9 9600X : 1874.6 GB/s READ , 1795.1 GB/s WRITE , 1859.7 GB/s COPY , 2.8ns LATENCY
• Ryzen 5 7600X : 1028.5 GB/s READ , 1017.0 GB/s WRITE , 1017.6 GB/s COPY , 2.6ns LATENCY

In the L1 cache performance, the Ryzen 9 9600X shows a visible advantage over the Ryzen 5 7600X. The read speed of the Ryzen 9 9600X is approximately 85% higher, the write speed is about 83% higher, and the copy speed is roughly 83% higher as well. However, the latency of the Ryzen 9 9600X is 14% higher than that of the Ryzen 5 7600X, indicating a minor trade-off.

For the L2 cache, the Ryzen 9 9600X also outperforms the Ryzen 5 7600X significantly. The read speed is about 84% higher, the write speed is around 77% higher, and the copy speed is approximately 83% higher.

In the CPU-Z built-in test, both processors perform almost identically, with a slight increase in single-threaded performance for 9600X. However, since this is an engineering sample, the results might vary.

AMD Ryzen 9000 series will be released next month. The company is yet to confirm pricing for the 6-core version (and other SKUs as well).

Source: HXL