Upgrading my computer. Concise hardware vs hardware question

Hello.

I'm thinking of upgrading my computer. My budget is currently limited so I'm going with something cheap.

I am interested in two components; motherboard and graphic card.

I have an Intel pentium 4 CPU 3.00 GHz
Core speed 3017 MHz Multiplier x15 Bus speed 201.2 Mhz Rated FSB 804.7 mHZ (from CPU-Z)

I'd like to swap it with one of these 3 (if it has the same function?   ), and I'm asking if it's worth it for gaming:

MBO 775 ASROCK G41M-GS3 (M-ATX)

MBO 775 ASROCK G41M-VS3 R2.0 (M-ATX)
(G41M-VS3 R2.0: 775, Intel G41, ICH7, BUS 1333 MHz, DDR3, Broj utora 2, 1066 MHz, Intel GMA4500 do 1759MB, PCI 1, PCIe x16 1, PATA 1, SATA II 4, 6-kanalni audio, 1x 10/100 Ethernet, USB 2.0 4, µATX, Interni COM i LPT konektor)

MBO AM3 ASROCK N68-GS3 UCC (M-ATX)
(N68-GS3 UCC: AM3, NVIDIA GeForce 7025, nForce 630a, BUS 1000MHz, DDR3,Broj utora 2, 1600MHz, nVidia GF7025 do 256MB, PCI 2, PCIe x16 1, PCIe x1 1, PATA 1, SATA 4, RAID 0,0+1,1,5,JBOD, 6-kanalni audio, 1x 10/100/1000 Ethernet, Serial 1, µATX )

For example, the BUS speed (if that's that) is 5 times higher than on my current CPU.


Also, about the graphic card. I have a NVIDIA Geforce 6600, 128 MB.

Switch with one of these 2:

VGA PALIT GF210 SUPER SILENT/1GB (LP)
(GF210 SUPER SILENT/1GB (LP): NVIDIA GeForce, GF210, PCIe x16, 1024 MB, DDR3, 64-bit, Radni takt GPU 589 MHz, Takt memorije 1000 MHz, DVI-I, HDTV da, 1x D-sub, HDMI, 2560x1600)

VGA PALIT GF210 SUPER/1GB (LP)
(GF210 SUPER/1GB (LP): NVIDIA GeForce, GF210, PCIe x16, 1024 MB, DDR3, 64-bit, Radni takt GPU 589 MHz, Takt memorije 800 MHz, DVI-I, HDTV da, 1x D-sub, HDMI, 2560x1600)

Just looking at 128MB vs 1024 MB - it seems a big difference.




I'm able to play many newer games, but obviously with miserable FPS. Would this new system improve the FPS? Thanks in advance.