I made an overview of all the popular 7800 variants in their basic form, from the 7800Go until the fastest 7800GTX512.
--------------------------7800GTX512-----------7800GTX----------------7800GT-------------------7800Go-----------------7800Go GTX
-------------------------------------------------Basic--------------------Basic---------------------Dell---------------------Dell
Core2D------------------275/1.2-----------------275/1.2------------------ 275/1.2-----------------100/1.1------------------100/1.1------Mhz/Volt
Core3D Thr--------------500/1.45------------------------------------------------------------------100/1.1------------------250/1.1------Mhz/Volt
Core 3D-----------------550/1.45----------------430/1.4-------------------400/1.4-----------------250/1.1------------------400/1.3------Mhz/Volt
Delta Geo 3D-------------0-----------------------40------------------------40------------------------0-----------------------0-----------Mhz
Mem 2D-----------------1200--------------------1200---------------------1000--------------------658-----------------------658----------Mhz
Mem Thr----------------1700-----------------------------------------------------------------------658-----------------------658----------Mhz
Mem 3D-----------------1700--------------------1200---------------------1000--------------------658-----------------------1064---------Mhz
Pixel Pipes----------------24----------------------24------------------------20----------------------16------------------------- 24
Vertex Pipes--------------8-----------------------8-------------------------7------------------------6--------------------------8
Mem Bandw--------------54.4----------------------38.4--------------------32.0----------------------21.0----------------------34.0----------*10exp9
Fill Rate------------=----13.4----------------------11.3----------------------8.8-----------------------4.0-----------------------9.6----------*10exp9
Vertices/sec------------1100----------------------860----------------------700-----------------------375-----------------------800----------*10exp6
Most obvious difference between the 7800Go and Go GTX is the fact that the Core is running on 1.1 Volt against 1.3 Volt for the GTX.
The 1.1volt is easy to alter with Nibitor into 1.3 Volt but I do not know if the hardware supports this. It will then be possible then to raise the 3D Clock quite significantly.
I have no idea what the memory Voltage is, probably very low because this memory is designed to run 1300Mhz at 1.1 Volt.
This Voltage can be hardware modded to a higher voltage, but it depends on the current amount of heat produced if this will be possible at all.
Suppose you have the core/mem in 3D at 400/1000Mhz, than the last three figures in the overview alter to 32.0/6.4/600 which is not too far away from the Go GTX, and comparable to a basic 7800GT.
--------------------------7800GTX512-----------7800GTX----------------7800GT-------------------7800Go-----------------7800Go GTX
-------------------------------------------------Basic--------------------Basic---------------------Dell---------------------Dell
Core2D------------------275/1.2-----------------275/1.2------------------ 275/1.2-----------------100/1.1------------------100/1.1------Mhz/Volt
Core3D Thr--------------500/1.45------------------------------------------------------------------100/1.1------------------250/1.1------Mhz/Volt
Core 3D-----------------550/1.45----------------430/1.4-------------------400/1.4-----------------250/1.1------------------400/1.3------Mhz/Volt
Delta Geo 3D-------------0-----------------------40------------------------40------------------------0-----------------------0-----------Mhz
Mem 2D-----------------1200--------------------1200---------------------1000--------------------658-----------------------658----------Mhz
Mem Thr----------------1700-----------------------------------------------------------------------658-----------------------658----------Mhz
Mem 3D-----------------1700--------------------1200---------------------1000--------------------658-----------------------1064---------Mhz
Pixel Pipes----------------24----------------------24------------------------20----------------------16------------------------- 24
Vertex Pipes--------------8-----------------------8-------------------------7------------------------6--------------------------8
Mem Bandw--------------54.4----------------------38.4--------------------32.0----------------------21.0----------------------34.0----------*10exp9
Fill Rate------------=----13.4----------------------11.3----------------------8.8-----------------------4.0-----------------------9.6----------*10exp9
Vertices/sec------------1100----------------------860----------------------700-----------------------375-----------------------800----------*10exp6
Most obvious difference between the 7800Go and Go GTX is the fact that the Core is running on 1.1 Volt against 1.3 Volt for the GTX.
The 1.1volt is easy to alter with Nibitor into 1.3 Volt but I do not know if the hardware supports this. It will then be possible then to raise the 3D Clock quite significantly.
I have no idea what the memory Voltage is, probably very low because this memory is designed to run 1300Mhz at 1.1 Volt.
This Voltage can be hardware modded to a higher voltage, but it depends on the current amount of heat produced if this will be possible at all.
Suppose you have the core/mem in 3D at 400/1000Mhz, than the last three figures in the overview alter to 32.0/6.4/600 which is not too far away from the Go GTX, and comparable to a basic 7800GT.
