In my case, EXA or XAA had more or less exactly the same dragging performance on 3D. My card: 00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M] (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 99 Bus: primary=00, secondary=01, subordinate=01, sec-latency=68 I/O behind bridge: 00009000-00009fff Memory behind bridge: d4300000-d43fffff Prefetchable memory behind bridge: dc000000-dfffffff Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
It should be noted that this card was very well supported up untill the Xorg upgrade.
In my case, EXA or XAA had more or less exactly the same dragging performance on 3D. My card:
Prefetchable memory behind bridge: dc000000-dfffffff
00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M] (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 99
Bus: primary=00, secondary=01, subordinate=01, sec-latency=68
I/O behind bridge: 00009000-00009fff
Memory behind bridge: d4300000-d43fffff
Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
It should be noted that this card was very well supported up untill the Xorg upgrade.