lshw -c display

WARNING: you should run this program as super-user.

  *-display                 

       description: VGA compatible controller

       product: Cape Verde PRO [Radeon HD 7750/8740 / R7 250E]

       vendor: Advanced Micro Devices, Inc. [AMD/ATI]

       physical id: 0

       bus info: pci@0000:01:00.0

       version: 87

       width: 64 bits

       clock: 33MHz

       capabilities: vga_controller bus_master cap_list rom

       configuration: driver=radeon latency=0

       resources: irq:30 memory:e0000000-efffffff memory:f7e00000-f7e3ffff ioport:e000(size=256) memory:c0000-dffff

WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

我的显卡是AMD R7 350 , 2G显存，128位的

显示出来对不上啊？