Well here are the Specs.

CPU

Custom 64-bit MIPS R4300 RISC CPU (93.75 MHz)
64-bit Buffer
64-bit Registers
64-bit Data Path
64-bit RISC "Reality Immersion" Graphics Co-Processor (rcp)
Utilizing Reality Immersion Technology; (62.5 Mhz)
Sound and Graphics Processor (RSP) handles:
Video
Sound
Vectors

Pixel Drawing Processor (RDP) handles:
Textures
Anti-Aliasing
Rasterizing
Z-Buffering
125 MIPS for CPU
60 SPECint92 for CPU
45 SPECfp92 for CPU
100+ MFLOPS for the "Reality Immersion" Graphics Co-Processor
 

2D GRAPHICAL CAPABILITY

256 x 224 to 640 x 480
Limited by TV Standards
Flicker Free Interlace Mode Support
21-bit Color Output
32-bit RGBA Pixel Color Frame Buffer Support
 

MEMORY CONFIGURATION

4 Megabytes (36 megabits) Total RAM
Rambus DRAM Subsystem Capable of Transferring up to 562.5
Megabytes per second
Custom 8-bit Rambus Bus (to the DRAM) runs at 500 MHz max
Internal Data Bus to the RCP is 128-bit
 

SOUND PROCESSOR

Stereo 16-bit
ADPCM Compression
Up to 100 PCM channels
Wavetable Synthesis
Sampled at 44.1 KHz
 

GEOMETRY ENGINE

Hardware support for:
Z-Buffering
Scaling
Rotation
Skewing
Shading
Anti-aliasing
Texture mapping
Detail Texturing
Tri-linear Mip Map Interpolation
Perspective Correction
Environment Mapping
Depth Buffering
"Level of Detail (LOD) Management"
Vertex Positioning and Transformations
Depth, Color and Texture Clipping
Transparency (256 Levels Max)
Gouraud Shading
Capable of Calculating of Approximately 160,00 Rectangular
Polygons/sec with Hardware Features Enabled.
 

SPRITE SPECIAL EFFECTS

Scaling
Rotation
Anti-aliasing
Transparency (256 Levels Max)
 

64DD SPECIFICATIONS

Magnetic Media with Read and Write Capability
3 3/4" Front Loading Disk Drive similar to a Zip Drive
Bundled with a 2MB Expansion RAM Pack which fits into the N64 Console
Manufactured by ALPS

Transfer Rate and Seek time:

150 Milliseconds (ms) Seek Time
1 Megabyte/sec Data Transfer

Media:

64MB Disk storage
20MB of Writable Space
44MB of Read-only Space
Supports N64 Console Compression Algorithm