sapphire? Gecube? X1950pro

Can anyone tell me the difference between a gecube 1950 and a sapphire 1950 ????

They are both the same specs, both ati radeon, i have used sapphire before but not Gecube.
I was just wondering if there was any difference at all with regards to reliability?.

Specs for the sapphire :Chipset - ATI Radeon X1950 PRO + RIALTO
Engine clock - 580MHz
Shader units - 36
Pixel Pipelines - 8
Memory clock - 1400 MHz
Memory interface - 256-bit
Memory Support - 512MB GDDR3
Bus Interface - AGP
Variable display outputs - DVI/DVI/TV out
Max 3D resolution - 2560x1600 (dual-link DVI) 1024 x 768 (TV out)
Hardware Features - DirectX® 9 ShaderModel 3.0
Software Feature - AvivoTM

specs for the gecube: Powered by ATI RADEON® RV570 (80nm) GPU.
A 80-nanometer process GPU, the debut of the unique processing architecture.
256MB of 256-bit (512-bit Internal Ring Bus) GDDR3 memory.
36 parallel pixel pipelines.
Dual DVI (Double Dual Link) + HDTV + HDCP + D-sub support.
ATI’s Avivo™ technology connects to home entertainment devices and creates true-to-life image reproduction, and the smoothest video playback ever offered by ATI. Get high image fidelity with CRT and LCD displays, TVs, rear projection and plasma TVs, and projectors.
New ultra-threaded core 3D architecture with ATI’s revolutionary Avivo video and display technology to drive performance to new heights with incredible speed and intense 3D graphics.
Shader Model 3.0 features new High Dynamic Range visual effects, and enhances realism with adaptive anti-aliasing and lightening fast performance.
CATALYST™: Full Windows Vista LDDM support including Aero Glass visuals.

Thanks.