GeForce GTX 280:
# 512-Bit
# 1GB GDDR3
# 240 Stream Processors
# PhysX Ready
# CUDA Technology
# PureVideo HD technology
# Full MS DirectX 10 Support
# Open GL 2.1, SLI, PCIe 2.0 Support
# 2nd gen. Unified architechture delivers 50% more gaming performance over 1st gen. through 240 shader processors
GeForce GTX 260:
# 448-Bit
# 896MB GDDR3
# 192 Stream Processors
# PhysX Ready
# CUDA Technology
# PureVideo HD technology
# Full MS DirectX 10 Support
# Open GL 2.1, SLI, PCIe 2.0 Support
http://www.dvhardware.net/article27294.html
# 512-Bit
# 1GB GDDR3
# 240 Stream Processors
# PhysX Ready
# CUDA Technology
# PureVideo HD technology
# Full MS DirectX 10 Support
# Open GL 2.1, SLI, PCIe 2.0 Support
# 2nd gen. Unified architechture delivers 50% more gaming performance over 1st gen. through 240 shader processors
GeForce GTX 260:
# 448-Bit
# 896MB GDDR3
# 192 Stream Processors
# PhysX Ready
# CUDA Technology
# PureVideo HD technology
# Full MS DirectX 10 Support
# Open GL 2.1, SLI, PCIe 2.0 Support
http://www.dvhardware.net/article27294.html