我 46L 贴的链接又有了更新：

> #172: So I tried 1920x1080 and as expected it works a lot better, would say similar to native 4K. The performance also varies based on Photoshop window size so I guess there ’ s some frame buffer or such getting too big (Photoshop window being downscaled and the actual image area rendered at native 4K). Changing from advanced GPU features to basic in photoshop also makes things smoother

证实了：
1 ）整数缩放能用。也就是说你只能 1x 或 2x 缩放，否则卡死你。
2 ）非整数缩放 PS 和 Lightroom 都卡爆。这性能也就只能写写代码了，其他干啥都不行。

一万多块钱买个用起来都要小心翼翼的弱鸡，玩蛋去吧。
我正在研究 Macbook Pro 15 寸，六核带独显。虽然贵了不少，但至少心里不堵，没事儿还能打打游戏不是么？