u don't need GTX family series to play black ops it even works fine with nvidia gefore 6800gt.
but GTX family is useful with DirectX 11 games like Civilization V, Dirt 2,
the good news is Mahinda reduced the prices of Electronics parts in Srilanka ,I think definitely u may don't know that
so now people can easily buy whatever they want.
AMD Radeon™ HD 6870 GPU Feature Summary:
900MHz Engine Clock
1GB GDDR5 Memory
1050MHz Memory Clock (GDDR5)
134.4 Gbps memory bandwidth (maximum)
2 TFLOPs compute power
Double slot form factor
TeraScale 2 Unified Processing Architecture
1120 Stream Processors
56 Texture Units
128 Z/Stencil ROP Units
32 Color ROP Units
PCI Express® 2.1 x16 bus interface
"Eye-Definition" graphics
DirectX® 11 support
Shader Model 5.0
DirectCompute 11
Programmable hardware tessellation unit
Accelerated multi-threading
HDR texture compression
Order-independent transparency
OpenGL 4.1 support
Image quality enhancement technology
Up to 24x multi-sample and super-sample anti-aliasing modes
Adaptive anti-aliasing
Morphological anti-aliasing (MLAA)
16x angle independent anisotropic texture filtering
128-bit floating point HDR rendering
AMD Eyefinity multi-display technology1
Independent resolutions, refresh rates, color controls, and video overlays
Display grouping
Combine multiple displays to behave like a single large display
AMD EyeSpeed visual acceleration2
AMD Accelerated Parallel Processing (APP) technology3,4
OpenCL 1.1
DirectCompute 11
Accelerated video encoding, transcoding, and upscaling
UVD 3 dedicated video playback accelerator
MPEG-4 AVC/H.264
VC-1
MPEG-2 (SD & HD)
Multi-View Codec (MVC)
MPEG-4 part 2 (DivX, Xvid)
Adobe Flash
Enhanced Video Quality features
Advanced post-processing and scaling
Dynamic contrast enhancement and color correction
Brighter whites processing (Blue Stretch)
Independent video gamma control
Dynamic video range control
Dual-stream HD (1080p) playback support
DXVA 1.0 & 2.0 support
AMD HD3D technology5
Stereoscopic 3D display/glasses support
Blu-ray 3D support
Stereoscopic 3D gaming
3rd party Stereoscopic 3D middleware software support
AMD CrossFireX™ multi-GPU technology6
Dual GPU scaling
Cutting-edge integrated display support
DisplayPort 1.2
Max resolution: 2560x1600 per display
Multi-Stream Transport
21.6 Gbps bandwidth
High bit-rate audio
HDMI 1.4a with Stereoscopic 3D Frame Packing Format, Deep Color, xvYCC wide gamut support, and high bit-rate audio
Max resolution: 1920x1200
Dual-link DVI with HDCP
Max resolution: 2560x1600
VGA
Max resolution: 2048x1536
Integrated HD audio controller
Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required
Supports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats
AMD PowerPlay™ power management technology4
Dynamic power management with low power idle state
Ultra-low power state support for multi-GPU configurations
AMD Catalyst™ graphics and HD video configuration software
Unified graphics display drivers
Certified for Windows 7, Windows Vista, and Windows XP
AMD Catalyst Control Center™
Software application and user interface for setup, configuration, and accessing special features of AMD Radeon products