Riva TNT2 M64

TNT2 M64 kept TNT2 branding but used a narrower memory path aimed at cheaper systems.

Fahrenheit RIVA TNT2 Series Desktop SDR 1999 NVIDIA

Key Metrics

Launch Date: 1999-10-12
Memory: 16 MB SDR
Memory Bandwidth: 1.14 GB/s
Interface: AGP 4x
Process Node: TSMC 250 nm
Bus Width: 64-bit

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GPU Specs

Identity
Entry Type	Reference GPU
Official Name	NVIDIA Riva TNT2 M64
GPU Codename	NV5
Architecture	Fahrenheit
Launch Date	1999-10-12
Market Segment Notes	Desktop in RIVA TNT2 Series
Core Specs
GPU Die	NV5
Process Node	TSMC 250 nm
Transistor Count	0.01 billion
Die Size	63 mm²
CUDA Cores	Not applicable
SM Count	Not applicable
TMUs	2
ROPs	2
Base Clock	125 MHz
Boost Clock	125 MHz
Pixel Fillrate	0.25 GP/s
Texture Fillrate	0.25 GT/s
Memory
Memory Size	16 MB
Memory Type	SDR
Memory Bus Width	64-bit
Memory Clock	143 MHz
Memory Bandwidth	1.14 GB/s
Board and Display
Recommended PSU	200 W
Power Connectors	None
Interface	AGP 4x
Display Outputs	1x VGA
Slot Width	Single-slot
Board Partner Model	Reference or OEM specification
Reference Design	NVIDIA reference design
Software
DirectX Support	DirectX 6.0
OpenGL Support	OpenGL 1.2

GPU Gallery

Front view of nVidia RIVA TNT2 M64 board — **Front: representative physical card, nVidia RIVA TNT2 M64 board.** Example board bus: museum lists AGP without a generation; Wiki lists AGP 4x; Example board memory: museum lists 32 MB; Wiki lists 16 MB; Example board memory type: museum lists SDRAM; Wiki lists SDRView original external gallery

Rear view of nVidia RIVA TNT2 M64 board — **Rear: representative physical card, nVidia RIVA TNT2 M64 board.** Example board bus: museum lists AGP without a generation; Wiki lists AGP 4x; Example board memory: museum lists 32 MB; Wiki lists 16 MB; Example board memory type: museum lists SDRAM; Wiki lists SDRView original external gallery

Why It Mattered

TNT2 M64 shows NVIDIA's early low-cost segmentation strategy. It kept the TNT2 family identity while reducing memory bandwidth, which made it popular in cheaper systems and confusing in the used market.

Collector Notes

Record whether the board is branded M64, Vanta, or OEM-only. Memory-chip count, bus width clues, and part numbers are important because sellers often omit the M64 suffix.

Common Failure Points

The common issue is not knowing what it is. M64 cards can be stable and useful, but they should not be compared with full 128-bit TNT2 or TNT2 Ultra boards.

Compare with

Reviews1 review

ArticleAnandTech

Creative Labs 3D Blaster TNT2 Ultra

Review of the Riva TNT2 Ultra.

Sources

Primary / manufacturer sources

DOS Days RIVA TNT2 SeriesTNT2, TNT2 Ultra, TNT2 Pro, M64, Vanta, and Vanta LT family contextOpen source
Archived NVIDIA TNT2 product pageNVIDIA product positioning archiveOpen source

Independent reference sources

TechPowerUp Riva TNT2 M64 GPU SpecsModel-level specification referenceOpen source

Other sources

Creative 3D Blaster RIVA TNT2 Ultra datasheetBoard-level TNT2 Ultra performance and cooler contextOpen source

Photo sources

Videocard Virtual Museum
Board: nVidia RIVA TNT2 M64 boardCredit: Videocard Virtual MuseumLicense: Specific image license terms not identified on source pageSource claim: Museum footer links general Creative Commons information; specific image license terms are not identified on the source pageModified: resized and recompressed JPEG.Configuration: Example board bus: museum lists AGP without a generation; Wiki lists AGP 4x; Example board memory: museum lists 32 MB; Wiki lists 16 MB; Example board memory type: museum lists SDRAM; Wiki lists SDROriginal external gallery
View: Front
View: Rear