Acredito que sua resposta pode ser encontrada na linha de comando.
$ man -k amd
amdgpu (4) - AMD RADEON GPU video driver
pamdeinterlace (1) - remove ever other row from a PAM/PNM image
pamdice (1) - slice a Netpbm image into many horizontally and/or vertically
radeon (4) - ATI/AMD RADEON video driver
man radeon
fornece uma lista de hardwares suportados, assim como um link para seus wiki :
SUPPORTED HARDWARE The radeon driver supports PCI, AGP, and PCIe video cards based on the following ATI/AMD chips (note: list is non-exhaustive): R100 Radeon 7200 RV100 Radeon 7000(VE), M6, RN50/ES1000 RS100 Radeon IGP320(M) RV200 Radeon 7500, M7, FireGL 7800 RS200 Radeon IGP330(M)/IGP340(M) RS250 Radeon Mobility 7000 IGP R200 Radeon 8500, 9100, FireGL 8800/8700 RV250 Radeon 9000PRO/9000, M9 RV280 Radeon 9200PRO/9200/9200SE/9250, M9+ RS300 Radeon 9100 IGP RS350 Radeon 9200 IGP RS400/RS480 Radeon XPRESS 200(M)/1100 IGP R300 Radeon 9700PRO/9700/9500PRO/9500/9600TX, FireGL X1/Z1 R350 Radeon 9800PRO/9800SE/9800, FireGL X2 R360 Radeon 9800XT RV350 Radeon 9600PRO/9600SE/9600/9550, M10/M11, FireGL T2 RV360 Radeon 9600XT RV370 Radeon X300, M22 RV380 Radeon X600, M24 RV410 Radeon X700, M26 PCIe R420 Radeon X800 AGP R423/R430 Radeon X800, M28 PCIe R480/R481 Radeon X850 PCIe/AGP RV505/RV515/RV516/RV550 Radeon X1300/X1400/X1500/X1550/X2300 R520 Radeon X1800 RV530/RV560 Radeon X1600/X1650/X1700 RV570/R580 Radeon X1900/X1950 RS600/RS690/RS740 Radeon X1200/X1250/X2100 R600 Radeon HD 2900 RV610/RV630 Radeon HD 2400/2600/2700/4200/4225/4250 RV620/RV635 Radeon HD 3410/3430/3450/3470/3650/3670 RV670 Radeon HD 3690/3850/3870 RS780/RS880 Radeon HD 3100/3200/3300/4100/4200/4250/4290 RV710/RV730 Radeon HD 4330/4350/4550/4650/4670/5145/5165/530v/545v/560v/565v RV740/RV770/RV790 Radeon HD 4770/4730/4830/4850/4860/4870/4890 CEDAR Radeon HD 5430/5450/6330/6350/6370 REDWOOD Radeon HD 5550/5570/5650/5670/5730/5750/5770/6530/6550/6570 JUNIPER Radeon HD 5750/5770/5830/5850/5870/6750/6770/6830/6850/6870 CYPRESS Radeon HD 5830/5850/5870 HEMLOCK Radeon HD 5970 PALM Radeon HD 6310/6250 SUMO/SUMO2 Radeon HD 6370/6380/6410/6480/6520/6530/6550/6620 BARTS Radeon HD 6790/6850/6870/6950/6970/6990 TURKS Radeon HD 6570/6630/6650/6670/6730/6750/6770 CAICOS Radeon HD 6430/6450/6470/6490 CAYMAN Radeon HD 6950/6970/6990 ARUBA Radeon HD 7000 series TAHITI Radeon HD 7900 series PITCAIRN Radeon HD 7800 series VERDE Radeon HD 7700 series OLAND Radeon HD 8000 series HAINAN Radeon HD 8000 series BONAIRE Radeon HD 7790 series KAVERI KAVERI APUs KABINI KABINI APUs HAWAII Radeon R9 series MULLINS MULLINS APUs
Referência: link
Este é um bom tutorial para visualizar informações sobre sua GPU. Eu gosto especialmente de lspci | grep -E "VGA|3D"
e sudo lspci -v -s ##:##.#
(usando os números encontrados no comando anterior).