Item Nvidia GeForce 7900 ATI Radeon X1900 nVidia GeForce 7800 GTX
Release2006-03-09 2006-01-24 2005-06-22
Die size 352 mm2
Process 90 nm 90 nm 110 nm
Core speed 655 MHz 650 MHz 430 MHz
Transistors 278 M 384 M 302 M
Price $599
Ops/s
Pipelines 32 16 textures, 16 pixels, 16 Z-samples
Memory 256-bit, 51.2 GB/s, 512 MB 256-bit, 1.26 ns GDDR-3, 1.55 GHz, 48 GB/s, 512 MB GDDR3, 256 bit, 600 MHz, 38.4 GB/s
AGP
Type Desktop Desktop
Fill rate 15.6 Gpix/s 10.4 Gpix/s, 10.4 Gtex/s 10.32 Gpix/s
RAMDAC 2x 400 MHz 10-bit RAMDACs 2x 400 MHz RAMDACs + 2x DVOs
DirectX 9.0c
Textures 16
Core G71 R580 G70, NV47
Triangles/s 1400 M 1300 M 860 Mvertices/s
Vertex shaders 8 x 3.0 16 x 3.0 8 x 3.0
Pixel shaders 24 x 3.0 4x12 x 3.0 24 x 3.0
PCI Express Yes Yes Yes
 

2006-03-09 Nvidia GeForce 7900 Faster version of G70 with faster core, clocked at up to 650-700 MHz. Said to be equivalent to RSX and have 32 pipelines. Previously known as G71.

2006-01-24 ATI Radeon X1900 Faster version of R520, now with 48 vertex shaders. In year-end a faster version known as R580+ will be out.

2005-06-22 nVidia GeForce 7800 GTX New Nvidia graphics chip, formerly known as G70.Full 128 bit FP support through the whole rendering engine. 64 bit texture filtering and blending. Draws 100-110 W from the power supply.
A dual-slot version with faster core is sometime referrred to as G71.
Previously known as NV47 according to some sources.