For a fair while now, we’ve been talking about Intel’s upcoming Arc Alchemist GPUs as comprising two chips: a larger, 512-EU processor primarily intended for high-end desktop parts, and a smaller 128-EU chip meant for entry-level and mobile products. These processors have been known as DG2-512 and DG2-128 for some time.

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Source: Hot Hardware – Linux Github Source Leaks Existence Of Intel’s Arc Alchemist 256 EU ‘SOC3’ GPU