Bottlenecking?

Ok few days ago i posted a journal that i wanted to buy a 8800gt. ALmost ordered one, but someone said that my cpu could be bottleneck my 8800gt. Well now my question is how bad is that bottlenecking?
Isnt there a card which i can run @ fullstrength with my cpu and still get good performences?

Mobo:

Field Value
Motherboard Properties
Motherboard ID 63-1101-000010-00101111-082205-I915$A0164001_BIOS DATE: 08/22/05 11:02:52 VER: 08.00.10
Motherboard Name Asus P5GD1-FM (FSC OEM)

Front Side Bus Properties
Bus Type Intel GTL+
Bus Width 64-bit
Real Clock 200 MHz (QDR)
Effective Clock 800 MHz
Bandwidth 6400 MB/s

Memory Bus Properties
Bus Type Dual DDR SDRAM
Bus Width 128-bit
DRAM:FSB Ratio 1:1
Real Clock 200 MHz (DDR)
Effective Clock 400 MHz
Bandwidth 6400 MB/s

Chipset Bus Properties
Bus Type Intel Direct Media Interface

Motherboard Physical Info
CPU Sockets/Slots 1 LGA775
Expansion Slots 3 PCI, 1 PCI-E x16
RAM Slots 4 DDR DIMM
Integrated Devices Audio, LAN, IEEE-1394
Form Factor Micro ATX
Motherboard Size 240 mm x 240 mm
Motherboard Chipset i915P

Motherboard Manufacturer
Company Name ASUSTeK Computer Inc.
Product Information http://usa.asus.com/products1.aspx?l1=3
BIOS Download http://support.asus.com/download/download.aspx?SLanguage=en-us

CPU:
Field Value
CPU Properties
CPU Type Intel Pentium 4 630, 3000 MHz (15 x 200)
CPU Alias Prescott-2M
CPU Stepping N0
Instruction Set x86, x86-64, MMX, SSE, SSE2, SSE3
Original Clock 3000 MHz
Min / Max CPU Multiplier 14x / 15x
Engineering Sample No
L1 Trace Cache 12K Instructions
L1 Data Cache 16 KB
L2 Cache 2 MB (On-Die, ECC, ATC, Full-Speed)

Multi CPU
Motherboard ID INTEL
CPU #0 Intel(R) Pentium(R) 4 CPU 3.00GHz, 2992 MHz
CPU #1 Intel(R) Pentium(R) 4 CPU 3.00GHz, 2992 MHz

CPU Physical Info
Package Type 775 Contact LGA
Package Size 3.75 cm x 3.75 cm
Transistors 169 million
Process Technology 7M, 90 nm, CMOS, Cu, Low-K Inter-Layer, High-K Gate, Strained Si
Die Size 135 mm2
Core Voltage 1.3 V
I/O Voltage 1.3 V
Typical Power 84 W @ 3.00 GHz
Maximum Power 101 W @ 3.00 GHz

CPU Manufacturer
Company Name Intel Corporation
Product Information http://www.intel.com/products/processor

CPU Utilization
CPU #1 / HTT Unit #1 3 %
CPU #1 / HTT Unit #2 4 %