Take a lookie at the updated Spec Sheet.

NINTENDO GAMECUBE hardware specifications:

MPU ("Micro Processing Unit") Custom IBM Power PC "Gekko"

Manufacturing Process 0.18 micron IBM Copper Wire Technology

Clock Frequency 485 MHz

CPU Capacity 1125 Dmips (Dhrystone 2.1)

Internal Data Precision 32-bit Integer & 64-bit Floating-point

External Bus 1.3 GB/second peak bandwidth

32-bit address space

64-bit data bus

162 MHz clock

Internal Cache L1: Instruction 32KB, Data 32KB (8 way)

L2: 256KB (2 way)

System LSI Custom ATI/Nintendo "Flipper"

Manufacturing Process 0.18 micron NEC Embedded DRAM Process

Clock Frequency 162 MHz

Embedded Frame Buffer Approx. 2 MB

Sustainable Latency: 6.2ns (1T-SRAM)

Embedded Texture Cache Approx. 1 MB

Sustainable Latency: 6.2ns (1T-SRAM)

Texture Read Bandwidth 10.4 GB/second (Peak)

Main Memory Bandwidth 2.6 GB/second (Peak)

Pixel Depth 24-bit Color, 24-bit Z Buffer

Image Processing Functions Fog, Subpixel Anti-aliasing, 8 Hardware Lights, Alpha Blending, Virtual Texture Design, Multi-texturing, Bump Mapping, Environment Mapping, MIP Mapping, Bilinear Filtering, Trilinear Filtering, Ansitropic Filtering, Real-time Hardware Texture Decompression (S3TC)

Real-time Decompression of Display List, HW 3-line Deflickering filter

Audio Processing (Incorporated into the System LSI)

Sound Processor Custom Macronix 16-bit DSP

Instruction Memory 8KB RAM + 8KB ROM

Data Memory 8KB RAM + 4KB ROM

Clock Frequency 81 MHz

Performance 64 simultaneous channels, ADPCM encoding

Sampling Frequency 48KHz

Performance

Floating-point Arithmetic Capability 10.5 GFLOPS (Peak)

(MPU, Geometry Engine, HW Lighting Total)

Real-world polygon 6 to 12 million polygons/second (Peak)

(Assuming actual game conditions with complex models, fully textured, fully lit, etc.)

System Memory 40 MB

Main Memory 24 MB MoSys 1T-SRAM

Approximately 10ns Sustainable Latency

A-Memory 16 MB 81 MHz DRAM

Disc Drive CAV (Constant Angular Velocity) System

Average Access Time 128ms

Data Transfer Speed 16Mbps to 5Mbps

Media 3 inch NINTENDO GAMECUBE Disc based on Matsushita's Optical Disc Technology

Capacity Approx. 1.5GB

Input/Output 4 Controller Ports

2 Memory Card Slots

Analog AV Output

Digital AV Output

2 High-Speed Serial Ports

High-speed Parallel Port

Power Supply AC Adapter DC12V x 3.5A

Dimensions 4.3"(H) x 5.9"(W) x 6.3"(D)

*The peak figures listed are all for maximum instantaneous performance and cannot be achieved in an actual game. However, following the conventions of the game industry, they are listed for your reference.