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ZOTAC 8800 GTS 320 AMP! Edition

Graphics Processor
320 MB
Memory Size
Memory Type
320 bit
Bus Width
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