If you dont know what hardware you are using you can download free software that will help you.
CPU-Z, GPU-Z
CPU that pass for civ 5:
Intel:
Core 2 Quad
Kentsfield:
Q6600, Q6700, QX6700, QX6800, QX6850
Yorkfield:
Q7500, Q7600, Q8200, Q8200s, Q8300, Q8400, Q9000, Q9100, Q9300, Q9400, Q9400s, Q9450, Q9500, Q9505, Q9550, Q9550s, Q9650, QX9650, QX9770, QX9775
Core 2 Duo
Allendale, Conroe:
E4300, E4400, E4500, E4600, E4700, E6400, E6420, E6550, E6600, E6700, E6750, E6850, X6800
Wolfdale-3M:
E7200, E7300, E7400, E7500, E7600
Wolfdale:
E8190, E8200, E8300, E8400, E8500, E8600
Core 2 Duo mobile
Merom:
T5750, T5800, T5850, T5870, T5900, T7100, T7200, T7250, T7300, T7400, T7500, T7600, T7600G, T7700, T7800
Penryn, Penryn-3M:
T6400, T6500, T6570, T6600, T6670, T8100, T8100, T8300, T9300, T9400, T9500, T9550, T9600, T9600, T9800, T9900, P7350, P7370, P7450, P7550, P7570, P8400, P8400, P8600, P8600, P8700, P8800, P9500, P9600, P9700, SP9300, SP9400, SP9600, SL9600
Core 2 Extreme
Merom XE, Penryn XE, Penryn QC XE:
X7800, X7900, X9000, X9100, QX9300
Pentium Dual-Core
Conroe:
E2220
Wolfdale-3M:
E5200, E5300
Core i3
Clarkdale:
i3-530, i3-540, i3-550, i3-560
Arrandale:
330M, 330E, 350M, 370M
Core i5
Clarkdale:
i5-650, i5-655K, i5-660, i5-661, i5-670, i5-680
Lynnfield:
i5-750, i5-750S, i5-760
Arrandale:
i5-430M, i5-450M, i5-520M, i5-520E, i5-540M
Core i7
Bloomfield:
i7-860, i7-860S, i7-870, i7-870S, i7-875K, i7-880, i7-920 i7-930, i7-940, i7-950, i7-960, i7-970, i7-965 Extreme Edition, i7-975 Extreme Edition
Gulftown:
i7-970
i7-980X Extreme Edition
AMD
AMD Athlon X2
Brisbane:
BE-2350, BE-2400, 4050e, 4450e, 4850e, 5050e
'B' series:
4450B, 4850B, 5000B, 5200B, 5400B, 5600B, 6400
Kuma:
6500, 7450, 7550, 7750, 7750, 7850
Regor:
215, 240, 245, 250, 255, 260, 235e, 240e, 245e
AMD Phenom
Agena (B2 & B3, 65 nm, quad-core):
9100e, 9150e, 9350e, 9450e, 9500, 9550, 9600, 9600 Black Edition, 9650, 9750, 9850, 9850 Black Edition, 9950 Black Edition, 9600B, 9750B
Toliman (B2 & B3, 65 nm, triple-core):
8250e, 8400, 8450, 8450e, 8550, 8600, 8650, 8750, 8750 Black Edition, 8850, 8600B, 8750B
AMD Phenom II
Thuban (E0, 45 nm, hexa-core):
1055T, 1090T
Deneb (C2/C3, 45 nm, quad-core):
805, 810, 820, 900e, 905e, 910, 910e, 920, 925, 940 Black Edition, 945, 955, 955 Black Edition, 965 Black Edition, B93, B95
Heka (C2, 45 nm, triple-core):
700e, 705e, 710, 720 Black Edition, 740 Black Edition, B73, B75
Callisto (C2/C3, 45 nm, dual-core):
545, 550, 550, 555 Black Edition, B53, B55
AMD Phenom II mobile
Champlain (45 nm, Quad-core):
N930, X920 BE
Champlain (45 nm, Triple-core):
P820, N830
Champlain (45 nm, Dual-core):
N620, X620 BE
AMD Turion II
Champlain (45 nm, Dual-core):
P520, N530
AMD Athlon II mobile
Champlain (45 nm, Dual-core):
P320, N330
AMD Athlon II (Phenom II-based)
Propus (45 nm, quad-core):
600e, 605e, 610e, 620, 630, 635, 640
Rana (45 nm, triple-core):
400e, 405e, 415e, 425, 435, 440, 445
Regor (45 nm, dual-core):
260u, 215, 235e, 240, 240e, 245, 245e, 250, 255, 260, B22, B24
CPU that fail:
Any Celeron, Duron, Athlon, Sempron, VIA, Cyrix, Pentium 4, Pentium D, Pentium Extreme Edition, Celeron D, IBM
video that passes:
nVidia with minimum 512 VRAM
Desktop series:
7900GT, 8600 GS, 8600GT, 8600GTS, 8800 GS, 8800 GTS, 8800GT, 8800GTX, 8800 Ultra, 9600 GSO, 9600 GT Green Edition, 9600 GT, 9800 GT Green Edition, 9800 GT, 9800 GTX, 9800 GTX, 9800 GX2, GT 120, GT 130, GT 140, GTS 150, GT 220, GT 230, GT 240, GTS 240, GTS 250, GTX 260, GTX 275, GTX 280, GTX 285, GTX 295, GT 320, GT 330, GT 340, GT 420,GTS 450, GTX 460, GTX 465, GTX 470, GTX 480
Mobile series:
8700M GT, 8800M GTS, 8800M GTX, 9500M GS, 9600M GS, 9600M GT, 9650M GS, 9650M GT, 9700M GT, 9700M GTS, 9800M GS, 9800M GTS, 9800M GT, 9800M GTX, GT 120M, GT 130M, GTS 150M, GTS 160M, GT 220M, GT 230M, GT 240M, GTS 250M, GTS 260M, GTX 260M, GTX 280M, GTX 285M, GT 320M, GT 330M, GT 335M, GTS 350M, GTS 360M, GT 415M, GT 415M, GT 420M, GT 425M, GT 435M, GT 445M, GTX 460M, GTX 470M, GTX 480M
AMD with minimum 512 VRAM
Desktop series:
HD 2900GT, HD 3430, HD 3450, HD 3650, HD 3690/3830, HD 3850 X2, HD 3600, HD 3800, HD 3870x2, HD 4350, HD 4550, HD 4650, HD 4670, HD 4730, HD 4770, HD 4830, HD 4850, HD 4860, HD 4870, HD 4870x2, HD 4890, HD 4850 X2, HD 5450, HD 5550, HD 5570, HD 5670, HD 5750, HD 5770, HD 5830, HD 5850, HD 5870, HD 5870 Eyefinity Edition, HD 5970
AMD 700 chipset series:
HD 3200, HD 3300, HD 4200, HD 4250, HD 4290
AMD mobile series:
HD 2400, HD 2400 XT, HD 2600, HD 2600 XT, HD 2700, HD 3100, HD 3200, HD 3410, HD 3430, HD 3450, HD 3470, HD 3650, HD 3670, HD 3850, HD 3870, HD 3850 X2, 3870 X2, HD 4200, HD 4225, HD 4250, HD 4270, HD 4330, HD 4530, HD 4550, HD 4570, HD 4650, HD 4670, HD 4830, HD 4850, HD 4860, HD 4870, HD 4870 X2, HD 530v, HD 545v, HD 550v, HD 560v, HD 565v, HD 5145, HD 5165, HD 5430, HD 5450, HD 5450, HD 5470, HD 5650, HD 5730, HD 5750, HD 5770, HD 5830, HD 5850, HD 5870, FireGL V5600, FireGL V5700, FireGL V5725, M5725, M5800, M7740, M7820
Intel with minimum 512 VRAM
GMA 4500, GMA X4500, GMA X4500HD, GMA 4500MHD, GMA HD (i3 CPU based), Sandy Bridge HD Graphics.
CIV 5 WILL RUN ON ALL GPU THAT HAS MORE THAN 30 PIPELINES/STREAM PROCESSORS/UNIFIED SHADERS (thats all the same), AND CORE CLOCK FROM 450MHz AND ABOVE, IF YOU HAVE DOUBTS YOU CAN SEE YOUR GPU SPECIFICATIONS AT MANUFACTURER SITE
www.amd.com www.nvidia.com www.intel.com www.sis.com www.via.com
If you have about 2GB Of RAM it is enough to play, if you have more than 2Gb of RAM gameplay experience will be better, the more RAM the better.
If you have less than 2GB of RAM that means you have to buy more RAM if it is possible, or you simply wont play.
ANY VARIATION OF HARDWARE THAT LISTED ABOVE WILL MAKE RUN CIV 5
Oh my god 4 hours to make all this stuff, i hope it will help.[/b]