Sort of. The Xenos GPU in the Xbox 360 was the first with a unified shader architecture but the 8800 was indeed the first one for PC. If you want to get a litt

Sort of. The Xenos GPU in the Xbox 360 was the first with a unified shader architecture but the 8800 was indeed the first one for PC. If you want to get a little more pedantic, GPGPU has been around in some form as long as programmable shaders have by (ab)using graphics APIs. But unified shaders made it a lot more flexible/useful/less hacky and were definitely the start of modern GPGPU efforts.