I'm comparing ATI and Nvidia in the same price range, about $170, and with certain specs that are the same:
Memory Size: 1GB
Memory Interface: 256-bit
Memory Type: DDR5
The major difference I see, is the number of processor cores / stream processing units. These must not be the same thing. If so, ATI has over 3 times as many, and that's what everyone should buy.
nVIDIA GeForce GTX 460
Core Clock: 725MHz
Stream Processors: 336 Processor Cores
Effective Memory Clock: 3600MHz
ATI Radeon HD 5830 (for instance)
Core Clock: 800MHz
Stream Processors: 1120 Stream Processing Units
Effective Memory Clock: 1000MHz (4.0Gbps)
Another major difference, is the "Effective Memory Clock", 3600MHz to 1000MHz.
Interesting claim, here. And they also compared the GTX 460 with the Radeon HD 5830.
http://www.nvidia.com/object/product-geforce-gtx-460-us.html
It says at the bottom of the page:
Memory Size: 1GB
Memory Interface: 256-bit
Memory Type: DDR5
The major difference I see, is the number of processor cores / stream processing units. These must not be the same thing. If so, ATI has over 3 times as many, and that's what everyone should buy.
nVIDIA GeForce GTX 460
Core Clock: 725MHz
Stream Processors: 336 Processor Cores
Effective Memory Clock: 3600MHz
ATI Radeon HD 5830 (for instance)
Core Clock: 800MHz
Stream Processors: 1120 Stream Processing Units
Effective Memory Clock: 1000MHz (4.0Gbps)
Another major difference, is the "Effective Memory Clock", 3600MHz to 1000MHz.
Interesting claim, here. And they also compared the GTX 460 with the Radeon HD 5830.
http://www.nvidia.com/object/product-geforce-gtx-460-us.html
It says at the bottom of the page:
nVIDIA Wrote:GeForce GTX 460 has 4 times faster FPS versus Radeon HD 5830 in Microsoft DirectX 11 SDK subd11 tessellation test with maximum tessellation level set.