NVIDIA: No News on GeForce 6800
Vertex Pipelines
NVIDIA Confirms Lower Amount of
Geometry Processors on 6800 Chip
by Anton
Shilov
08/30/2004 | 03:22 AM
Graphics processor designer NVIDIA Corp. said Monday it was nothing new in
the recently released facts about lower amount of geometry pipelines within the
GeForce 6800 chips. The company said that the GeForce 6800 were originally said
to have 5 vertex pipeline instead of 6 on higher-end GeForce 6800 models.
“That is not a big secret, we have communicated the exact spec: GeForce 6800
Ultra and GT are 6 vertex units and 16 pixel units, GeForce 6800 standard is 5
vertex units and 12 pixel pipes,” a spokesperson for NVIDIA told X-bit labs
Monday.
|
NVIDIA GeForce 6800 Product Lineup
Specifications |
|
Product Name |
# pixel
processors |
# vertex
processors |
Bus width |
Memory
Type/Amount |
GPU Speed |
RAM Speed |
|
GeForce 6800
Ultra |
16 |
6 |
256-bit |
GDDR3/256MB |
400MHz |
1100MHz |
|
GeForce 6800 GT |
16 |
6 |
256-bit |
GDDR3/256MB |
350MHz |
1000MHz |
|
GeForce 6800 |
12 |
5 |
256-bit |
GDDR/128MB |
325MHz |
700MHz |
|
GeForce 6800 LE* |
8 |
4 |
256-bit |
GDDR/128MB |
320MHz |
700MHz |
*SKU is not
officially supported, specs may vary
When NVIDIA initially unveiled its GeForce 6800-series lineup it was believed
that the GeForce 6800 Ultra and GeForce 6800 graphics processors featured equal
number of geometry processors amid different amount of pixel processors and
clock-speed. Now it turns out that at least some GeForce 6800 graphics
processors feature less geometry processors than more advanced “Ultra” and “GT”
models.
During the weekend an author of popular tweaking utility for graphics cards,
Riva Tuner, released information about “lower than expected number of vertex processors inside the GeForce
6800”.
The GeForce 6800 Ultra packs in 16 pixel pipelines and 6 vertex pipelines,
the GeForce 6800 GT reportedly integrates the same amount of pixel and vertex
processors. The GeForce 6800 sports 12 pixel pipes, but it was unclear whether
it has 5 or 6 geometry engines.
It is unclear why reference GeForce 6800 graphics card provided by NVIDIA
Corp. and used by X-bit labs’ laboratory in Tallinn, Estonia, scored identical
fps in Xbitmark and 3DMark03 vertex shader tests against NVIDIA’s
reference GeForce 6800 Ultra graphics card working at the same clock-speeds,
indicating equal per MHz geometry performance of the “Standard” model against
the “Ultra” model.
출처 : http://www.xbitlabs.com/news/video/display/20040830032007.html
2차 출처 : www.parkoz.com
6800 nomal 의 버텍스라인은 기존의 GT, ULTRA와 같은 6개가 아닌 5개로
밝혀졌습니다.
