AMD Zen 7 Halo iGPU early leak suggests up to 35% faster performance vs Zen 6 Medusa Halo iGPU

Earlier this month, Moore’s Law Is Dead put out a substantial AMD Zen 7 leak, revealing the specs and performance of everything from Zen 7 EPYC to Zen 7 “Grimlock” AM5 desktop CPUs. The leaker also stuffed some nuggets of info regarding the Zen 5 Grimlock Point and Grimlock Halo mobile APUs. In a recent Broken Silicon podcast, MLID has given a hint about the final performance and configuration of the AMD Zen 7 Halo’s iGPU.

MLID claims that the Zen 7 Halo iGPU could, at the very least, match the Compute Unit (CU) count of the Zen 6 Medusa Halo iGPU. MLID reported back in August that the Zen 6 Medusa Halo APU could feature a 48-CU iGPU with 20 MB of L2 cache. Interestingly, the Zen 6 Medusa Halo iGPU is expected to be the same die as the RDNA 5 desktop “AT3” GPU.

So, the iGPU on the Zen 7 Grimlock Halo APU could feature 48 RDNA 5/5.5 CUs or more. MLID suggests that the number could go as high as 64 CUs. While the leaker shares no concrete performance figures, the Zen 7 Grimlock Halo iGPU could be anywhere from 20 to 35% faster than the Zen 6 Medusa Halo iGPU.

AMD Zen 7 Grimlock Halo iGPU could be faster than the RTX 5070

Doing some napkin math, MLID alleged in a previous leak that the performance of the AT3 RDNA 5 desktop GPU could fall somewhere between the RTX 4070 and the RX 9070 (Available on Amazon). Since the Zen 6 Medusa Halo’s iGPU will be power-limited, let’s assume the performance of the iGPU is at the lower end of MLID’s claims, at the level of an RTX 4070.

Per our testing, the RTX 5070 desktop GPU is around 28% faster than the RTX 4070 desktop GPU. Since MLID expects the Zen 7 Grimlock Halo iGPU to be 20-35% ahead of the Zen 6 Medusa Halo iGPU, the iGPU on the Grimlock Halo could be faster than the RTX 5070 desktop. As always, MLID’s numbers are early and non-final. So, our napkin math could very well be quite a bit off.

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