Zwei Grafikkarten lassen sich parallel betreiben, um so die Performance zu erhöhen. Nvidia nennt dieses Verfahren SLI, bei ATi heißt es Crossfire. Diese Charts zeigen die Performance-Werte für solche (nicht ganz billigen) Konfigurationen.

3DMark06 (v1.0.2) HDR/SM3.0 Score

HDR-R/SM3.0 Benchmark (1024x768x32, no AA, Trilinear Filtering, Default Q)

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  Nvidia 8800 GTX SLI
  G80,576 MHz,1800 MHz,768 MB GDDR3,4.0,yes
  7676
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  Nvidia 8800 GTS OC SLI
  G80,575 MHz,1700 MHz,320 MB GDDR3,4.0,yes
  7078
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  Nvidia 7900 GT SLI
  G71,520 MHz,1440 MHz,256 MB GDDR3,3.0/3.0,yes
  4743
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  ATi X1900 XTX CF
  R580,621 MHz,1440 MHz,512 MB GDDR3,3.0/3.0,yes
  4443
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  Nvidia 7950 GX2 SLI
  4xG71,500 MHz,1200 MHz,4x512 MB GDDR3,3.0/3.0,yes
  4440
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  Nvidia 8600 GT SLI
  G84,540 MHz,1400 MHz,256 MB GDDR3,4.0,yes
  3932
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  Nvidia 7600 GT SLI
  G73,560 MHz,1400 MHz,256 MB GDDR3,3.0/3.0,yes
  2933
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  Nvidia 6800 Ultra SLI
  NV45,425 MHz,1100 MHz,256 MB GDDR3,3.0/3.0,yes
  2539
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  ATi X1300 XT CF
  RV530,587 MHz,1386 MHz,256 MB GDDR3,3.0/3.0,yes
  1733

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  ATi HD2600 Pro CF
  RV630,600 MHz,1400 MHz,256 MB DDR3,4.0,yes
  3042
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  ATi HD2600 XT CF
  RV630,800 MHz,1400 MHz,512 MB GDDR3,4.0,yes
  2588
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  ATi HD2900 XT CF
  R600,743 MHz,1656 MHz,512 MB GDDR3,4.0,yes
  8208
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  ATi HD2900 XT CF
  R600,743 MHz,1656 MHz,512 MB GDDR3,4.0,yes
  8029
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  ATi X1600 Pro CF
  RV530,500 MHz,792 MHz,256 MB GDDR2,3.0/3.0,yes
  1354
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  ATi X1600 XT CF
  RV530,581 MHz,1368 MHz,256 MB GDDR3,3.0/3.0,yes
  1783
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  ATi X1650 Pro CF
  RV535,621 MHz,1386 MHz,256 MB GDDR3,3.0/3.0,yes
  1808
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  ATi X1650 XT CF
  RV560,574 MHz,1344 MHz,256 MB GDDR3,3.0/3.0,yes
  2192
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  ATi X1900 XT CF
  R580,621 MHz,1440 MHz,256 MB GDDR3,3.0/3.0,yes
  4111
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  ATi X1950 XT CF
  R580+,621 MHz,1800 MHz,256 MB GDDR3,3.0/3.0,yes
  3517
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  ATi X1950 XTX CF
  R580+,648 MHz,1998 MHz,512 MB GDDR4,3.0/3.0,yes
  4867
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  Nvidia 6600 GT SLI
  NV43,500 MHz,1000 MHz,128 MB GDDR3,3.0/3.0,yes
  1391
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  Nvidia 6800 GT SLI
  NV45,350 MHz,1000 MHz,256 MB GDDR3,3.0/3.0,yes
  2206
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  Nvidia 7600 GS SLI
  G73,400 MHz,800 MHz,256 MB GDDR2,3.0/3.0,yes
  1916
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  Nvidia 7800 GT SLI
  G70,400 MHz,1000 MHz,256 MB GDDR3,3.0/3.0,yes
  3515
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  Nvidia 7800 GTX SLI
  G70,430 MHz,1200 MHz,256 MB GDDR3,3.0/3.0,yes
  4062
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  Nvidia 7800 GTX SLI
  G70,550 MHz,1700 MHz,512 MB GDDR3,3.0/3.0,yes
  5163
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  Nvidia 7900 GTX SLI
  G71,650 MHz,1600 MHz,512 MB GDDR3,3.0/3.0,yes
  5551
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  Nvidia 7950 GT SLI
  G71,550 MHz,1400 MHz,512 MB GDDR3,3.0/3.0,yes
  5002
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  Nvidia 8500 GT SLI
  G86,459 MHz,800 MHz,512 MB DRR2,4.0,yes
  1584
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  Nvidia 8600 GTS SLI
  G84,675 MHz,2016 MHz,256 MB GDDR3,4.0,yes
  4822
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  Nvidia 8800 GT OC SLI
  G92,660 MHz,1900 MHz,512 MB GDDR3,4.0,yes
  8049
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  Nvidia 8800 GTS SLI
  G80,500 MHz,1600 MHz,320 MB GDDR3,4.0,yes
  6679
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  Nvidia 8800 GTS SLI
  G80,500 MHz,1600 MHz,640 MB GDDR3,4.0,yes
  6455