Gnome-shell with nouveau - how is the performance

I have an old 8400GS and find gnome-shell's performance under nouveau pretty bad. Is it my card or the driver? If you have a more powerful card, how is the performance? I'm no gamer but is there a more powerful (none fan cooled) nvidia card that's better?

Looks okay.... guess my 8400GS is just underpowered for this driver. I ordered the 450 GTS so we'll see
$ grep flip /var/log/Xorg.0.log
[ 23641.419] (==) NOUVEAU(0): Page flipping enabled
$ grep drm /var/log/Xorg.0.log
[ 23641.418] drmOpenDevice: node name is /dev/dri/card0
[ 23641.418] drmOpenDevice: open result is 7, (OK)
[ 23641.418] drmOpenByBusid: Searching for BusID pci:0000:01:00.0
[ 23641.418] drmOpenDevice: node name is /dev/dri/card0
[ 23641.418] drmOpenDevice: open result is 7, (OK)
[ 23641.419] drmOpenByBusid: drmOpenMinor returns 7
[ 23641.419] drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
[ 23641.419] (II) [drm] nouveau interface version: 0.0.16
[ 23641.419] drmOpenDevice: node name is /dev/dri/card0
[ 23641.419] drmOpenDevice: open result is 8, (OK)
[ 23641.419] drmOpenDevice: node name is /dev/dri/card0
[ 23641.419] drmOpenDevice: open result is 8, (OK)
[ 23641.419] drmOpenByBusid: Searching for BusID pci:0000:01:00.0
[ 23641.419] drmOpenDevice: node name is /dev/dri/card0
[ 23641.419] drmOpenDevice: open result is 8, (OK)
[ 23641.419] drmOpenByBusid: drmOpenMinor returns 8
[ 23641.419] drmOpenByBusid: drmGetBusid reports pci:0000:01:00.0
[ 23641.419] (II) [drm] DRM interface version 1.4
[ 23641.419] (II) [drm] DRM open master succeeded.
$ dmesg | grep drm
[ 0.651085] [drm] Initialized drm 1.1.0 20060810
[ 0.661177] [drm] nouveau 0000:01:00.0: Detected an NV50 generation card (0x298200a2)
[ 0.664916] [drm] nouveau 0000:01:00.0: Attempting to load BIOS image from PRAMIN
[ 0.710278] [drm] nouveau 0000:01:00.0: ... appears to be valid
[ 0.710280] [drm] nouveau 0000:01:00.0: BIT BIOS found
[ 0.710281] [drm] nouveau 0000:01:00.0: Bios version 62.98.47.00
[ 0.710283] [drm] nouveau 0000:01:00.0: TMDS table version 2.0
[ 0.710284] [drm] nouveau 0000:01:00.0: Found Display Configuration Block version 4.0
[ 0.710286] [drm] nouveau 0000:01:00.0: Raw DCB entry 0: 02000300 00000028
[ 0.710287] [drm] nouveau 0000:01:00.0: Raw DCB entry 1: 01000302 00020030
[ 0.710289] [drm] nouveau 0000:01:00.0: Raw DCB entry 2: 04011310 00000028
[ 0.710290] [drm] nouveau 0000:01:00.0: Raw DCB entry 3: 010223f1 00c0c080
[ 0.710292] [drm] nouveau 0000:01:00.0: DCB connector table: VHER 0x40 5 16 4
[ 0.710294] [drm] nouveau 0000:01:00.0: 0: 0x00001030: type 0x30 idx 0 tag 0x07
[ 0.710296] [drm] nouveau 0000:01:00.0: 1: 0x00000200: type 0x00 idx 1 tag 0xff
[ 0.710297] [drm] nouveau 0000:01:00.0: 2: 0x00000110: type 0x10 idx 2 tag 0xff
[ 0.710299] [drm] nouveau 0000:01:00.0: 3: 0x00000111: type 0x11 idx 3 tag 0xff
[ 0.710300] [drm] nouveau 0000:01:00.0: 4: 0x00000113: type 0x13 idx 4 tag 0xff
[ 0.710303] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 0 at offset 0xD710
[ 0.735573] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 1 at offset 0xDAB5
[ 0.741906] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 2 at offset 0xE364
[ 0.741911] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 3 at offset 0xE456
[ 0.742976] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table 4 at offset 0xE655
[ 0.742977] [drm] nouveau 0000:01:00.0: Parsing VBIOS init table at offset 0xE6BA
[ 0.762981] [drm] nouveau 0000:01:00.0: 0xE6BA: Condition still not met after 20ms, skipping following opcodes
[ 0.762989] [drm] nouveau 0000:01:00.0: timingset 255 does not exist
[ 1.160045] [drm] nouveau 0000:01:00.0: 1 available performance level(s)
[ 1.160047] [drm] nouveau 0000:01:00.0: 3: memory 400MHz core 567MHz shader 1400MHz fanspeed 100%
[ 1.160055] [drm] nouveau 0000:01:00.0: Register 0x00004030 not found in PLL limits table
[ 1.160090] [drm] nouveau 0000:01:00.0: c: memory 399MHz core 566MHz shader 1400MHz
[ 1.160209] [drm] nouveau 0000:01:00.0: Detected 512MiB VRAM
[ 1.161277] [drm] nouveau 0000:01:00.0: 512 MiB GART (aperture)
[ 1.173455] [drm] nouveau 0000:01:00.0: DCB encoder 1 unknown
[ 1.173457] [drm] nouveau 0000:01:00.0: TV-1 has no encoders, removing
[ 1.174154] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 1.174155] [drm] No driver support for vblank timestamp query.
[ 1.428713] [drm] nouveau 0000:01:00.0: allocated 1920x1080 fb: 0x40000000, bo ffff880221feec00
[ 1.483825] drm: registered panic notifier
[ 1.483828] [drm] Initialized nouveau 0.0.16 20090420 for 0000:01:00.0 on minor 0

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