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ZOTAC 8800 GTS 320 AMP! Edition

ZOTAC 8800 GTS 320 AMP! Edition Image NVIDIA G80 Image

Graphics Processor

GPU Name: G80
GPU Variant: G80-100-K0-A2
Architecture: Tesla
Process Size: 90 nm
Transistors: 681 million
Die Size: 484 mm²

Graphics Card

Released: Feb 12th, 2007
May 31st, 2007
Production Status: End-of-life
Bus Interface: PCIe 1.0 x16
ZOTAC Part #: ZT-88SE320-FPP

Clock Speeds

GPU Clock: 513 MHz
570 MHz (+11%)
Shader Clock: 1188 MHz
Memory Clock: 792 MHz
900 MHz (+14%)
1584 MHz effective
1800 MHz effective


Memory Size: 320 MB
Memory Type: GDDR3
Memory Bus: 320 bit
Bandwidth: 63.4 GB/s
72.0 GB/s

Render Config

Shading Units: 96
TMUs: 24
ROPs: 20
SM Count: 6
Pixel Rate: 10.26 GPixel/s
11.40 GPixel/s
Texture Rate: 12.31 GTexel/s
13.68 GTexel/s
Floating-point performance: 228.10 GFLOPS

Board Design

Slot Width: Dual-slot
Length: 10.5 inches
9 inches
267 mm
229 mm
TDP: 143 W
Outputs: 2x DVI
1x S-Video
Power Connectors: 1x 6-pin
Board Number: P356

Graphics Features

DirectX: 10.0
OpenGL: 3.3
OpenCL: n/a
CUDA: 1.0
Shader Model: 4.0


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Our review database contains 403 reviews of the 8800 GTS 320 AMP! Edition.

G80 GPU Notes

Each Streaming Multiprocessor(SM) in the chip architecture contains 8 SPs and 2 SFUs.

Each SP can fulfill up to two single precision operations MAD per clock.

Each SFU can fulfill up to four operations SF per clock (these units can also handle single-precision floating-point multiplications per clock).

The approximate ratio of operations MAD to operations SF is equal 2:1.

The theoretical SP + SFU performance in single-precision floating point operations
[FLOPSsp + sfu, GFLOPS] of the graphics card with shader count [n] and shader frequency [f, GHz], is estimated by the following formula: FLOPSsp+sfu; f × n × 3.

Alternative formula: FLOPSsp+sfu; f × m × ( 8 SPs * 2 (MAD) + 4 * 2 SFUs ). [m] - SM count.

SP - Shader Processor (Unified Shader, CUDA Core)
SFU - Special Function Unit
SM - Streaming Multiprocessor

Other retail boards based on this design

Name GPU Clock Memory Clock Other Changes
ZOTAC 8800 GTS 320 AMP! Edition 570 MHz 900 MHz 9 inches