Consiglio Upgrade Scheda Grafica

[tidusuper91]

Salve a tutti,
vorrei fare un upgrade del PC di famiglia usato da mio fratello più piccolo per giocare e dalla famiglia per utilizzo office generico.

Che VGA mi consigliate per sostituire la 8400 che c'è adesso dentro? Qualcosa che si trovi anche a buon mercato sul mercatino e permetta a mio fratello di giocare ai nuovi titoli dignitosamente, compatibilmente con la CPU che non è sicuramente eccezionale (seppur overclockata)

Processors Information
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Processor 1			ID = 0
	Number of cores		2 (max 2)
	Number of threads	2 (max 2)
	Name			Intel Pentium E2140
	Codename		Conroe
	Specification		Intel(R) Pentium(R) Dual  CPU  E2140  @ 1.60GHz
	Package (platform ID)	Socket 775 LGA (0x0)
	CPUID			6.F.D
	Extended CPUID		6.F
	Core Stepping		M0
	Technology		65 nm
	Core Speed		2999.7 MHz
	Multiplier x Bus Speed	8.0 x 375.0 MHz
	Rated Bus speed		1499.8 MHz
	Stock frequency		1600 MHz
	Instructions sets	MMX, SSE, SSE2, SSE3, SSSE3, EM64T
	L1 Data cache		2 x 32 KBytes, 8-way set associative, 64-byte line size
	L1 Instruction cache	2 x 32 KBytes, 8-way set associative, 64-byte line size
	L2 cache		1024 KBytes, 4-way set associative, 64-byte line size
	FID/VID Control		yes
	FID range		6.0x - 8.0x
	Max VID			1.313 V


Chipset
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Northbridge			Intel P965/G965 rev. C2
Southbridge			Intel 82801HB/HR (ICH8/R) rev. B0
Graphic Interface		PCI-Express
PCI-E Link Width		x16
PCI-E Max Link Width		x16
Memory Type			DDR2
Memory Size			4 GBytes
Channels			Dual, (Symmetric)
Memory Frequency		375.0 MHz (1:1)
CAS# latency (CL)		5.0
RAS# to CAS# delay (tRCD)	5
RAS# Precharge (tRP)		5
Cycle Time (tRAS)		18
Command Rate (CR)		2T

Mainboard Model		AB9 QuadGT(Intel965+ICH8) (0x0000072A - 0xBCA70729)

Display Adapters
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Display adapter 0	
	Name			NVIDIA GeForce 8400 GS 
	Revision		A2
	Codename		G86
	Technology		80 nm
	Memory size		256 MB
	Memory bus width	64 bits
	PCI device		bus 1 (0x1), device 0 (0x0), function 0 (0x0)
	Vendor ID		0x10DE (0x1043)
	Model ID		0x0422 (0x050A)
	Performance Level	0
		Core clock	459.0 MHz
		Shader clock	918.0 MHz
		Memory clock	400.0 MHz

Win32_VideoController		AdapterRAM = 0x10000000 (268435456)
Win32_VideoController		DriverVersion = 9.18.13.1106
Win32_VideoController		DriverDate = 01/18/2013

Software
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Windows Version			Microsoft Windows 7 (6.1) Ultimate Edition 64-bit  Service Pack 1 (Build 7601) 
DirectX Version			11.0