The observed suppression of hadrons at high $p_{\rm T}$ in $Au+Au$ collisions relative to production in $p+p$ may be due to several in-medium effects (e.g. jet-quenching, quark recombination). Studying the effect for identified hadrons shows that suppression exists for pions, but vanishes for protons. BRAHMS has collected a large sample of data from $Au+Au$ and $p+p$ collisions at $\sqrt{s_{NN}} = \unit[200]{GeV}$ at forward rapidities utilizing its unique setup to cover $p_{\rm T}$ range up to $\unit[4]{GeV/c}$. Spectra in $p_{\rm T}$ at forward rapidities ($y \approx 3.2$) for pions, kaons, protons and their antiparticles shall be presented in this talk. Nuclear modification factor ($R_{AuAu}$) will also be shown as a function of rapidity and centrality. Discussion of the results will be made, together with preliminary results from $Cu+Cu$ collisions at $\sqrt{s_{NN}} = \unit[200]{GeV}$.