Well, I recently got a few games like Portal2 and Saints Row 3 for my laptop, but I was told by one of my friends that my graphics card is shit and that the games wouldn't play oh medium settings. I'm not a picky gamer, I'll play on low settings and be on my dandy little way, but the games wont play on low. SR3 runs at 3 fps and portal only lags slightly which I'm ok with.


I've been looking around, finding some little glitches and stuff that can help me with SR3, I didn't really find anything and came up with the conclusion that I need a new graphics card. Currently I have an ATI Radeon 3100, looking to get a AMD Radeon hd 7850.
The thing is, I am unsure if this will work/be compatible with my windows7-32 bit toshiba laptop. I would like soem help from someone who has experience with this sort of thing, all help is appreciated.


Laptop specifications:
[spoiler=]

Processors Information
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Processor 1 ID = 0
Number of cores 1 (max 1)
Number of threads 1 (max 1)
Name AMD Sempron SI-42
Codename Griffin
Specification AMD Sempron(tm) SI-42
Package Socket S1 (638)
CPUID F.3.1
Extended CPUID 11.3
Brand ID 1
Core Stepping LG-B1
Technology 65 nm
TDP Limit 29 Watts
Core Speed 1050.2 MHz
Multiplier x FSB 5.25 x 200.0 MHz
HT Link speed 1800.3 MHz
Stock frequency 2100 MHz
Instructions sets MMX (+), 3DNow! (+), SSE, SSE2, SSE3, x86-64
L1 Data cache 64 KBytes, 2-way set associative, 64-byte line size
L1 Instruction cache 64 KBytes, 2-way set associative, 64-byte line size
L2 cache 512 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
FID range 5.3x - 6.5x
VID range 0.900 V - 1.200 V
# of P-States 2
P-State FID 0xD - VID 0x22 - IDD 19 (10.50x - 1.125 V)
P-State FID 0x10D - VID 0x30 - IDD 9 (5.25x - 0.950 V)




Package Type 0x2
Model 42
String 1 0x0
String 2 0x0
Page 0x0
CmpCap 1
ApicIdCoreSize 2
TDC Limit 19 Amps
Boosted P-States 0
Max non-turbo ratio 10.50x
Max turbo ratio 10.50x
Max CPU COF 21

Graphics
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Number of adapters 1


Graphic APIs
-------------------------------------------------------------------------


API ATI I/O
API ADL SDK


Display Adapters
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Display adapter 0
Name ATI Radeon 3100 Graphics
Memory size 256 MB
GPU ref clock 27000
PCI device bus 1 (0x1), device 5 (0x5), function 0 (0x0)
Vendor ID 0x1002 (0x1179)
Model ID 0x9613 (0xFFB0)
Performance Level 0




Software
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Windows Version Microsoft Windows 7 (6.1) Home Premium Edition 32-bit (Build 7600)
DirectX Version 11.0[/spoiler]