330 GB of DRAM living inside the compute array — not across a package, not on an interposer. 525× the weight bandwidth of any GPU. One die that trains and serves an 80B model.
Every GPU ever built moves weights across a package to reach the math. Sophon puts the memory above the MAC — connected by a vertical via fabric with 10⁸ slots per square millimeter. The bottleneck doesn't get faster. It ceases to exist.
Sophon interleaves 32 logic tiers and 32 memory tiers in a monolithic 2D-TMD stack. Each DRAM cell sits directly above the MAC that consumes it — connected by sub-100 nm vias, not a bus.
PFG-1 reference configuration on a 750 mm² die. Architecture licensees may customize tier count, tile geometry, and memory density.
131,072 pure-digital CIM tiles · zero ADCs · deterministic arithmetic
fwd + bwd on the same silicon
in-tile · 525× HBM3e
FP8 · 0.620 pJ BF16 fwd
model resident · 0.08 W refresh
64 tiers · 28 nm + 2D-TMD M3D
~7× cheaper than B300-class
2T0C gain-cell DRAM · holds 80B BF16 model + optimizer + activations
B300 posts higher peak dense TFLOPS. But real inference at low batch is bandwidth-bound — and there, Sophon wins on every metric that governs actual throughput.
Decode throughput modeled at batch 1, 80B parameters, FP8 mode (BF16-native decode is 7,219 tokens/s). B300 figures from published specifications and MLPerf-derived estimates.
Sophon is a licensable IP portfolio — not a standalone product. Choose the engagement model that fits your integration path.
License the Sophon RTL and memory controller IP for integration into your own SoC or multi-chip module. Includes full GDS-level reference design, memory timing models, and CIM tile generator.
License the full 2D-TMD M3D platform stack — process recipes, MIV via definitions, and 2T0C DRAM cell — for fabrication in your own fab or through our foundry partners.
Receive tape-out samples of the PFG-1 Sophon die for benchmarking and software co-development before committing to volume production or full IP integration.
PhantaField partners with semiconductor companies, AI labs, and defense contractors for Sophon IP licensing and co-development. NDA-protected technology briefings on request.