Graphics Cards Ranking

We assessed the overall performance of GPUs by averaging their benchmark and gaming results, including those from various vendors and markets such as desktops, notebooks, and workstations. GPUs that do not have any known benchmark or gaming results were not included in the ranking.

The ranking is updated daily.

Last updated: 2024-11-22

#
Graphics card
Type
Performance
Architecture
Year
TDP
601
Intel UHD Graphics
UHD Graphics
notebook 5.58 Generation 11.0 2021 10 W
602
NVIDIA Quadro M600M
Quadro M600M
mobile workstation 5.57 Maxwell 2015 30 W
603
AMD Radeon RX Vega 9
Radeon RX Vega 9
notebook 5.54 Vega 2017 15 W
604
AMD Radeon RX Vega 11
Radeon RX Vega 11
desktop 5.47 GCN 5.0 2018 35 W
605
NVIDIA GeForce 945M
GeForce 945M
notebook 5.46 Maxwell 2015 75 W
606
AMD FirePro M5100
FirePro M5100
mobile workstation 5.45 GCN 1.0 2013
607
NVIDIA Quadro P520
Quadro P520
mobile workstation 5.44 Pascal 2019 18 W
608
Intel Iris Plus Graphics G7 (Ice Lake 64 EU)
Iris Plus Graphics G7 (Ice Lake 64 EU)
notebook 5.41 Gen. 11 Ice Lake 2019 12 W
609
NVIDIA GeForce GTX 580M
GeForce GTX 580M
notebook 5.38 Fermi 2.0 2011 100 W
610
AMD Radeon R9 M385
Radeon R9 M385
notebook 5.34 GCN 2.0 2015
611
NVIDIA Quadro 5000M
Quadro 5000M
mobile workstation 5.34 Fermi 2010 100 W
612
AMD Radeon 550
Radeon 550
desktop 5.25 GCN 4.0 2017 50 W
613
AMD Radeon HD 6990M
Radeon HD 6990M
notebook 5.25 TeraScale 2 2011 100 W
614
Intel Iris Pro Graphics P580
Iris Pro Graphics P580
notebook 5.24 Generation 9.0 2015 15 W
615
AMD Radeon RX 640
Radeon RX 640
notebook 5.23 GCN 4.0 2019 50 W
616
NVIDIA GeForce GTX 765M
GeForce GTX 765M
notebook 5.18 Kepler 2013 75 W
617
AMD Radeon R9 M385X
Radeon R9 M385X
notebook 5.17 GCN 2.0 2015
618
ATI Radeon HD 5850
Radeon HD 5850
desktop 5.15 TeraScale 2 2009 151 W
619
NVIDIA GeForce GTX 460 SE
GeForce GTX 460 SE
desktop 5.14 Fermi 2010 150 W
620
Intel Iris Xe Graphics MAX
Iris Xe Graphics MAX
desktop 5.11 Generation 12.1 2020 25 W
621
Intel Iris Xe MAX Graphics
Iris Xe MAX Graphics
notebook 5.11 Generation 12.1 2020 25 W
622
AMD Radeon HD 6850
Radeon HD 6850
desktop 5.09 TeraScale 2 2010 127 W
623
NVIDIA GeForce GT 650M SLI
GeForce GT 650M SLI
notebook 5.08 Kepler 2012
624
NVIDIA GeForce GTX 470M
GeForce GTX 470M
notebook 5.06 Fermi 2010 75 W
625
NVIDIA GeForce GTX 670MX
GeForce GTX 670MX
notebook 5.06 Kepler 2012 75 W
626
NVIDIA Quadro 5000
Quadro 5000
workstation 5.01 Fermi 2011 152 W
627
NVIDIA GeForce GTX 675M
GeForce GTX 675M
notebook 5.00 Fermi 2.0 2012 100 W
628
AMD Radeon RX 570X
Radeon RX 570X
desktop 4.98 GCN 4.0 2018 120 W
629
NVIDIA Quadro K4000M
Quadro K4000M
mobile workstation 4.96 Kepler 2012 100 W
630
NVIDIA GeForce GTX 560 SE
GeForce GTX 560 SE
desktop 4.96 Fermi 2.0 2012 150 W
631
NVIDIA GeForce GTX 460M SLI
GeForce GTX 460M SLI
notebook 4.96 Fermi 2010
632
NVIDIA Tesla M2070
Tesla M2070
workstation 4.88 Fermi 2011 225 W
633
NVIDIA Quadro M520
Quadro M520
mobile workstation 4.85 Maxwell 2017 25 W
634
NVIDIA GeForce GTX 460 v2
GeForce GTX 460 v2
desktop 4.85 Fermi 2.0 2011 160 W
635
NVIDIA GeForce GTX 570M
GeForce GTX 570M
notebook 4.83 Fermi 2.0 2011 75 W
636
NVIDIA GeForce 945A
GeForce 945A
notebook 4.80 Maxwell 2015 33 W
637
ATI Mobility Radeon HD 5870 Crossfire
Mobility Radeon HD 5870 Crossfire
notebook 4.80 Terascale 2 2010 120 W
638
Intel Iris Pro Graphics 580
Iris Pro Graphics 580
notebook 4.77 Generation 9.0 2015 15 W
639
AMD Radeon PRO WX 2100
Radeon PRO WX 2100
workstation 4.77 GCN 4.0 2017 35 W
640
NVIDIA GeForce MX230
GeForce MX230
notebook 4.75 Pascal 2019 10 W
641
NVIDIA GeForce MX130
GeForce MX130
notebook 4.75 Maxwell 2017 30 W
642
Intel UHD Graphics Xe 32EUs (Tiger Lake-H)
UHD Graphics Xe 32EUs (Tiger Lake-H)
notebook 4.72 Gen. 12 2021
643
AMD FirePro M6000
FirePro M6000
mobile workstation 4.72 GCN 1.0 2012 43 W
644
Intel Iris Plus Graphics
Iris Plus Graphics
desktop 4.70 Generation 11.0 15 W
645
AMD Radeon R9 M360
Radeon R9 M360
notebook 4.69 GCN 1.0 2015
646
AMD Radeon R9 M375X
Radeon R9 M375X
notebook 4.68 GCN 1.0 2015
647
AMD Radeon RX Vega 5
Radeon RX Vega 5
notebook 4.64 Vega 2020 15 W
648
AMD Radeon R7 M465X
Radeon R7 M465X
notebook 4.61 GCN 1.0 2016
649
NVIDIA Quadro 5010M
Quadro 5010M
mobile workstation 4.59 Fermi 2.0 2011 100 W
650
Intel UHD Graphics P750
UHD Graphics P750
desktop 4.56 Generation 12.1 2021 15 W
651
Intel Iris Plus Graphics 650
Iris Plus Graphics 650
notebook 4.55 Generation 9.5 2017 15 W
652
Intel UHD Graphics Xe G4 48EUs
UHD Graphics Xe G4 48EUs
notebook 4.55 Gen. 11 Ice Lake 2020 28 W
653
NVIDIA GRID M10-8Q
GRID M10-8Q
workstation 4.55 Maxwell 2016 225 W
654
NVIDIA GeForce GTX 650
GeForce GTX 650
desktop 4.54 Kepler 2012 65 W
655
NVIDIA GeForce GTX 670M
GeForce GTX 670M
notebook 4.52 Fermi 2.0 2012 75 W
656
AMD Radeon RX Vega 8 (Ryzen 2000/3000)
Radeon RX Vega 8 (Ryzen 2000/3000)
notebook 4.50 Vega 2017 15 W
657
Intel UHD Graphics 750
UHD Graphics 750
desktop 4.49 Generation 12.1 2021 15 W
658
Intel Iris Plus Graphics 655
Iris Plus Graphics 655
notebook 4.49 Generation 9.5 2018 15 W
659
ATI Radeon HD 5830
Radeon HD 5830
desktop 4.49 TeraScale 2 2010 175 W
660
NVIDIA GeForce GTX 760M
GeForce GTX 760M
notebook 4.46 Kepler 2013 55 W
661
Intel Iris Plus Graphics 645
Iris Plus Graphics 645
notebook 4.45 Generation 9.5 2019 15 W
662
AMD Radeon Graphics (Ryzen 7000)
Radeon Graphics (Ryzen 7000)
notebook 4.42 RDNA 2 2022
663
ATI Radeon HD 5770
Radeon HD 5770
desktop 4.42 TeraScale 2 2009 108 W
664
NVIDIA GeForce GTS 450 Rev. 2
GeForce GTS 450 Rev. 2
desktop 4.41 Fermi 2.0 2011 106 W
665
AMD Radeon HD 7750
Radeon HD 7750
desktop 4.41 GCN 1.0 2012 55 W
666
NVIDIA GeForce GT 755M
GeForce GT 755M
notebook 4.38 Kepler 2013 50 W
667
AMD Radeon E8860
Radeon E8860
notebook 4.37 GCN 1.0 2014 37 W
668
AMD Radeon R7 250E
Radeon R7 250E
desktop 4.37 GCN 1.0 2013 55 W
669
NVIDIA GeForce GTX 460 768MB
GeForce GTX 460 768MB
desktop 4.35 Fermi
670
NVIDIA GeForce GT 750M Mac Edition
GeForce GT 750M Mac Edition
notebook 4.34 Kepler 2013 50 W
671
AMD FirePro W600
FirePro W600
workstation 4.33 GCN 1.0 2012 75 W
672
AMD Radeon R7 M380
Radeon R7 M380
notebook 4.32 GCN 1.0 2015
673
Intel UHD Graphics Xe 750 32EUs
UHD Graphics Xe 750 32EUs
notebook 4.31 Gen. 12 2021
674
NVIDIA GRID M40
GRID M40
workstation 4.26 Maxwell 2016 50 W
675
NVIDIA Quadro P400
Quadro P400
workstation 4.26 Pascal 2017 30 W
676
NVIDIA Quadro K3000M
Quadro K3000M
mobile workstation 4.25 Kepler 2012 75 W
677
AMD Radeon HD 8870M
Radeon HD 8870M
notebook 4.25 GCN 1.0 2013
678
AMD Radeon RX Vega 10
Radeon RX Vega 10
notebook 4.23 GCN 5.0 2019 10 W
679
NVIDIA Quadro P500
Quadro P500
mobile workstation 4.23 Pascal 2018 18 W
680
AMD Radeon HD 6790
Radeon HD 6790
desktop 4.19 TeraScale 2 2011 150 W
681
NVIDIA GeForce GTX 480M
GeForce GTX 480M
notebook 4.19 Fermi 2010 100 W
682
AMD Radeon R9 M275X
Radeon R9 M275X
notebook 4.19 GCN 1.0 2014
683
Intel UHD Graphics 730
UHD Graphics 730
desktop 4.16 Generation 12.2 2023 15 W
684
Intel Iris Pro Graphics P6300
Iris Pro Graphics P6300
desktop 4.14 Generation 8.0 2014 15 W
685
NVIDIA GeForce GTX 285M SLI
GeForce GTX 285M SLI
notebook 4.14 G9x 2009 150 W
686
AMD FirePro M4000
FirePro M4000
mobile workstation 4.13 GCN 1.0 2012 33 W
687
NVIDIA Quadro K2000D
Quadro K2000D
workstation 4.11 Kepler 2013 51 W
688
NVIDIA Quadro K2000
Quadro K2000
workstation 4.10 Kepler 2013 51 W
689
Intel Iris Plus Graphics G4 (Ice Lake 48 EU)
Iris Plus Graphics G4 (Ice Lake 48 EU)
notebook 4.06 Gen. 11 Ice Lake 2019 12 W
690
AMD Radeon R9 M370X
Radeon R9 M370X
notebook 4.03 GCN 1.0 2015
691
NVIDIA GeForce GTX 550 Ti
GeForce GTX 550 Ti
desktop 4.02 Fermi 2.0 2011 116 W
692
NVIDIA GeForce 845M
GeForce 845M
notebook 3.95 Maxwell 2015 33 W
693
Intel Iris Pro Graphics 6200
Iris Pro Graphics 6200
notebook 3.95 Generation 8.0 2014 15 W
694
NVIDIA GeForce 940MX
GeForce 940MX
notebook 3.93 Maxwell 2016 23 W
695
AMD FirePro W4100
FirePro W4100
workstation 3.92 GCN 1.0 2014 50 W
696
NVIDIA GeForce GTX 285
GeForce GTX 285
desktop 3.92 Tesla 2.0 2008 204 W
697
ATI Radeon HD 4890
Radeon HD 4890
desktop 3.91 TeraScale 2009 190 W
698
AMD Radeon HD 7870M
Radeon HD 7870M
notebook 3.91 GCN 1.0 2012 45 W
699
Intel Iris Plus Graphics 640
Iris Plus Graphics 640
notebook 3.86 Generation 9.5 2017 15 W
700
NVIDIA GeForce GT 740
GeForce GT 740
desktop 3.84 Kepler 2014 64 W
701
AMD Radeon R9 M365X
Radeon R9 M365X
notebook 3.84 GCN 1.0 2015
702
NVIDIA Quadro 4000
Quadro 4000
workstation 3.83 Fermi 2010 142 W
703
NVIDIA GeForce GTX 660M
GeForce GTX 660M
notebook 3.75 Kepler 2012 50 W
704
AMD Radeon 540X
Radeon 540X
notebook 3.72 GCN 4.0 2018 50 W
705
AMD Radeon 630
Radeon 630
notebook 3.72 GCN 4.0 2019 50 W
706
NVIDIA GeForce MX110
GeForce MX110
notebook 3.72 Maxwell 2017 30 W
707
Intel Iris Graphics 550
Iris Graphics 550
notebook 3.70 Generation 9.0 2015 15 W
708
NVIDIA Maxwell GPU Surface Book
Maxwell GPU Surface Book
notebook 3.69 Maxwell 2015
709
AMD Radeon 550X
Radeon 550X
desktop 3.69 GCN 4.0 2019 50 W
710
NVIDIA Maxwell GPU Surface Book (940M, GDDR5)
Maxwell GPU Surface Book (940M, GDDR5)
notebook 3.69 Maxwell 2015
711
AMD Radeon R7 M370
Radeon R7 M370
notebook 3.67 GCN 1.0 2015
712
ATI FirePro V5800
FirePro V5800
workstation 3.67 TeraScale 2 2010 74 W
713
AMD FirePro W5130M
FirePro W5130M
mobile workstation 3.65 GCN 1.0 2015
714
NVIDIA GeForce GTX 275
GeForce GTX 275
desktop 3.59 Tesla 2.0 2009 219 W
715
AMD Radeon 540
Radeon 540
desktop 3.58 GCN 4.0 2017 50 W
716
ATI Radeon HD 4870
Radeon HD 4870
desktop 3.56 TeraScale 2008 150 W
717
AMD Radeon HD 6950M
Radeon HD 6950M
notebook 3.56 TeraScale 2 2011 50 W
718
AMD Radeon HD 7850M
Radeon HD 7850M
notebook 3.56 GCN 1.0 2012 40 W
719
Intel UHD Graphics 32EUs (Alder Lake)
UHD Graphics 32EUs (Alder Lake)
notebook 3.55
720
NVIDIA GeForce GT 640 Rev. 2
GeForce GT 640 Rev. 2
desktop 3.55 Kepler 2.0 2013 49 W
721
NVIDIA Quadro K2100M
Quadro K2100M
mobile workstation 3.52 Kepler 2013 55 W
722
AMD FireStream 9270
FireStream 9270
workstation 3.48 TeraScale 2008 160 W
723
NVIDIA GeForce GT 750M
GeForce GT 750M
notebook 3.44 Kepler 2013 50 W
724
NVIDIA GeForce GTX 280M SLI
GeForce GTX 280M SLI
notebook 3.43 G9x 2009 150 W
725
AMD Radeon HD 7770M
Radeon HD 7770M
notebook 3.43 GCN 1.0 2012 32 W
726
NVIDIA GeForce GTS 450
GeForce GTS 450
desktop 3.42 Fermi 2010 106 W
727
AMD FirePro M5950
FirePro M5950
mobile workstation 3.41 TeraScale 2 2011 35 W
728
ATI Radeon HD 4870 X2
Radeon HD 4870 X2
desktop 3.39 TeraScale 2008 286 W
729
AMD Radeon HD 8790M
Radeon HD 8790M
notebook 3.38 GCN 1.0 2013
730
NVIDIA Tesla M2070-Q
Tesla M2070-Q
workstation 3.38 Fermi 2011 225 W
731
NVIDIA Quadro 4000M
Quadro 4000M
mobile workstation 3.37 Fermi 2011 100 W
732
NVIDIA GeForce GTX 280
GeForce GTX 280
desktop 3.37 Tesla 2.0 2008 236 W
733
NVIDIA GeForce GTX 775M Mac Edition
GeForce GTX 775M Mac Edition
notebook 3.37 Kepler 2013 100 W
734
NVIDIA GeForce GTX 660 OEM
GeForce GTX 660 OEM
desktop 3.36 Kepler 2012 130 W
735
AMD Radeon R7 M275DX
Radeon R7 M275DX
notebook 3.34 GCN 2014
736
NVIDIA GeForce 930MX
GeForce 930MX
notebook 3.33 Maxwell 2016 17 W
737
NVIDIA GeForce GTX 260M SLI
GeForce GTX 260M SLI
notebook 3.29 G9x 2009 150 W
738
NVIDIA GeForce 930A
GeForce 930A
notebook 3.28 Maxwell 2015 33 W
739
Intel UHD Graphics Xe 750 32EUs (Rocket Lake)
UHD Graphics Xe 750 32EUs (Rocket Lake)
desktop 3.28 Gen. 12 2021
740
AMD FirePro V5900
FirePro V5900
workstation 3.28 TeraScale 3 2011 75 W
741
NVIDIA GeForce GTX 560M
GeForce GTX 560M
notebook 3.27 Fermi 2.0 2011 75 W
742
Intel Iris Graphics 540
Iris Graphics 540
notebook 3.26 Generation 9.0 2015 15 W
743
AMD Radeon HD 6770
Radeon HD 6770
desktop 3.24 TeraScale 2 2011 108 W
744
NVIDIA GeForce GT 745A
GeForce GT 745A
notebook 3.21 Kepler 2013 33 W
745
NVIDIA GeForce GTX 760A
GeForce GTX 760A
notebook 3.18 Kepler 2014 55 W
746
NVIDIA Quadro FX 5800
Quadro FX 5800
workstation 3.17 Tesla 2.0 2008 189 W
747
NVIDIA GeForce GTX 260
GeForce GTX 260
desktop 3.15 Tesla 2.0 2008 182 W
748
Intel UHD Graphics G1 (Ice Lake 32 EU)
UHD Graphics G1 (Ice Lake 32 EU)
notebook 3.13 Gen. 11 Ice Lake 2019 12 W
749
AMD Radeon HD 7730
Radeon HD 7730
desktop 3.13 GCN 1.0 2013 47 W
750
NVIDIA GeForce GTX 460M
GeForce GTX 460M
notebook 3.13 Fermi 2010 50 W
751
NVIDIA GeForce GTX 295
GeForce GTX 295
desktop 3.13 Tesla 2.0 2009 289 W
752
AMD Radeon R9 M270X
Radeon R9 M270X
notebook 3.12 GCN 1.0 2014
753
ATI Mobility Radeon HD 4870 X2
Mobility Radeon HD 4870 X2
notebook 3.11 TeraScale 2009
754
NVIDIA GeForce GT 650M
GeForce GT 650M
notebook 3.11 Kepler 2012 45 W
755
Intel HD Graphics P630
HD Graphics P630
desktop 3.11 Generation 9.5 2016 15 W
756
Intel HD Graphics 630
HD Graphics 630
notebook 3.10 Generation 9.5 2017 15 W
757
NVIDIA GRID K340
GRID K340
workstation 3.10 Kepler 2013 225 W
758
Intel UHD Graphics 630
UHD Graphics 630
desktop 3.09 Generation 9.5 2017 15 W
759
AMD Radeon HD 7750M
Radeon HD 7750M
notebook 3.09 GCN 1.0 2012 28 W
760
NVIDIA GeForce 830A
GeForce 830A
notebook 3.08 Maxwell 2014 33 W
761
NVIDIA GeForce 9800M GTX SLI
GeForce 9800M GTX SLI
notebook 3.07 G9x 2008 150 W
762
AMD FirePro M4170
FirePro M4170
mobile workstation 3.06 GCN 1.0 2015
763
Intel Iris Pro Graphics 5200
Iris Pro Graphics 5200
notebook 3.06 Generation 7.5 2013 30 W
764
NVIDIA NVS 810
NVS 810
workstation 3.06 Maxwell 2015 68 W
765
NVIDIA GeForce GT 640
GeForce GT 640
desktop 3.05 Kepler 2012 65 W
766
AMD Radeon RX Vega 6 (Ryzen 2000/3000)
Radeon RX Vega 6 (Ryzen 2000/3000)
notebook 3.04 Vega 2018 15 W
767
AMD Radeon R7 512 Cores (Kaveri Desktop)
Radeon R7 512 Cores (Kaveri Desktop)
desktop 3.04 GCN 2014
768
AMD Radeon R7 M350
Radeon R7 M350
notebook 3.02 GCN 3.0 2015 35 W
769
NVIDIA Quadro K620M
Quadro K620M
mobile workstation 3.02 Maxwell 2015 30 W
770
AMD FireStream 9250
FireStream 9250
workstation 3.02 TeraScale 2008 150 W
771
ATI Radeon HD 5750
Radeon HD 5750
desktop 3.01 TeraScale 2 2009 86 W
772
NVIDIA Quadro M500M
Quadro M500M
mobile workstation 3.01 Maxwell 2016 30 W
773
NVIDIA GeForce GTX 460 OEM
GeForce GTX 460 OEM
desktop 3.01 Fermi 2010 150 W
774
AMD Radeon HD 8770M
Radeon HD 8770M
notebook 2.99 GCN 1.0 2013
775
AMD FirePro W4190M
FirePro W4190M
mobile workstation 2.98 GCN 1.0 2015
776
AMD Radeon RX Vega 3
Radeon RX Vega 3
notebook 2.98 GCN 5.0 2019 15 W
777
NVIDIA GeForce 840A
GeForce 840A
notebook 2.97 Maxwell 2014 33 W
778
AMD Radeon R7 M465
Radeon R7 M465
notebook 2.96 GCN 3.0 2016
779
ATI Mobility Radeon HD 5870
Mobility Radeon HD 5870
notebook 2.96 TeraScale 2 2010 50 W
780
AMD Radeon R9 M265X
Radeon R9 M265X
notebook 2.96 GCN 1.0 2014
781
ATI Radeon HD 4850 X2
Radeon HD 4850 X2
desktop 2.93 TeraScale 2008 250 W
782
NVIDIA GeForce 940M
GeForce 940M
notebook 2.92 Maxwell 2015 33 W
783
AMD Radeon R9 M275
Radeon R9 M275
notebook 2.89 GCN 1.0 2014
784
NVIDIA GeForce 940A
GeForce 940A
notebook 2.87 Maxwell 2015 33 W
785
NVIDIA GeForce GT 545
GeForce GT 545
desktop 2.86 Fermi 2.0 2011 70 W
786
AMD Radeon 610M
Radeon 610M
notebook 2.85 RDNA 2.0 2023 15 W
787
Intel UHD Graphics 710
UHD Graphics 710
desktop 2.85 Generation 12.2 2022 15 W
788
AMD Radeon R6 M340DX
Radeon R6 M340DX
notebook 2.85 GCN 1.0 2015
789
AMD Radeon 625
Radeon 625
notebook 2.84 GCN 3.0 2019 50 W
790
NVIDIA GeForce GT 745M
GeForce GT 745M
notebook 2.83 Kepler 2013 45 W
791
NVIDIA GeForce 840M
GeForce 840M
notebook 2.83 Maxwell 2014 33 W
792
NVIDIA Quadro K1100M
Quadro K1100M
mobile workstation 2.82 Kepler 2013 45 W
793
NVIDIA GeForce 920MX
GeForce 920MX
notebook 2.80 Maxwell 2016 16 W
794
Intel HD Graphics P530
HD Graphics P530
desktop 2.78 Generation 9.0 2015 15 W
795
AMD Radeon R7 M460
Radeon R7 M460
notebook 2.77 GCN 3.0 2016
796
AMD Radeon R7 384 Cores (Kaveri Desktop)
Radeon R7 384 Cores (Kaveri Desktop)
desktop 2.75 GCN 2014
797
AMD FirePro M4100
FirePro M4100
mobile workstation 2.75 GCN 1.0 2013
798
AMD Radeon HD 8550G + HD 8750M Dual Graphics
Radeon HD 8550G + HD 8750M Dual Graphics
notebook 2.74 2013
799
AMD Radeon R7 250
Radeon R7 250
desktop 2.74 GCN 1.0 2013 65 W
800
AMD Radeon HD 7670A
Radeon HD 7670A
notebook 2.72 TeraScale 2 2012 45 W