llamaperf

NVIDIA A2 vs NVIDIA DGX Spark for local LLMs

0 reports on the NVIDIA A2 and 91 on the NVIDIA DGX Spark

Which is faster for local LLMs?

Nobody has reported the same model at the same quant on both cards yet, so there's no measured head-to-head. Memory bandwidth, which caps how fast a card can write, is 37% higher on the NVIDIA DGX Spark (200 GB/s on the NVIDIA A2, 273 on the NVIDIA DGX Spark). The estimates below compare them on the models people run most.

NVIDIA A2
Memory
16GB
Memory bandwidth
200 GB/s
FP16 compute
18 TFLOPS
Reports
0
NVIDIA DGX Spark
Memory
128GB unified
Memory bandwidth
273 GB/s
FP16 compute
125 TFLOPS
Reports
91

Estimated by the calculator

The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape.

ModelNVIDIA A2NVIDIA DGX Spark
Qwen3.8 27B13.0 t/sQ2_K4.0 t/sFP16
Qwen3.8 125B · 6B activedoesn't fit at these settings14.4 t/sQ6_K
Qwen3.6 35B · 3B active43.1 t/sQ2_K14.5 t/sFP16
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settings38.3 t/sQ2_K
Qwen3.6 27B13.0 t/sQ2_K4.0 t/sFP16
Gemma 4 26B · 4B active29.1 t/sQ3_K_S10.8 t/sFP16

Change the context, RAM or model in the calculator: NVIDIA A2 · NVIDIA DGX Spark

Every report on each card, with its source: NVIDIA A2 · NVIDIA DGX Spark

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