Biren BR100
VRAM
64 GB
Memory
HBM2e
Bandwidth
1,600 GB/s
FP16
1,024 TF
TDP
550 W
Memory and compute
Architecture and power
Notes
China market. Specs from Biren's own Hot Chips 34 disclosure: 1024 TFLOPS BF16, 2048 TOPS INT8, 64GB HBM2e at 1.6 TB/s. Volume production subsequently constrained by US export controls; successor SKUs (BR104) shipped in its place.
Models that may fit on Biren BR100
Estimates based on INT8 quantization. Actual fit depends on framework and batch size.
Frequently asked questions about Biren BR100
Answered from the entry's own figures: memory, which models fit, bandwidth, power and the card's class.
Biren BR100 has 64 GB of HBM2e at 1,600 GB/s. At INT8 a model's weights take about one byte per parameter, so the card holds roughly a 51B-parameter model with room for context; larger models need several cards or a lower precision.
From the catalog's estimates at INT8, Llama 3_3 Nemotron Super 49B V1, Gemma 4 31B IT, Llama Nemotron Embed VL 1B V2 and GLM Z1 9B 0414 fit on a single Biren BR100 with their default context. The list on this page shows the estimated memory each takes; the capacity planner sizes any model against this card for your own context length, batch size and request rate.
1,600 GB/s. Bandwidth bounds how fast a model generates tokens, because every token reads the whole set of weights and the KV cache from memory; at this rate a 51B model at INT8 could be read on the order of 31 times a second on one card, before batching and framework efficiency.
Biren BR100 has a TDP of 550 W, in the OAM form factor. Budget the TDP per card plus host overhead when sizing a server's power and cooling.
Biren BR100 is a datacenter accelerator, meant for servers and multi-GPU serving, built on the Biren BR100 architecture and released in 2022. It supports a multi-GPU interconnect, so a model larger than one card can be split across several.
Specifications from the manufacturer's published material; a figure that is not published is shown as such, and a derived one is explained in the notes.
Added Jul 30, 2026 · Last updated Jul 30, 2026
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