Matrox Millennium G400 vs Riva TNT2 M64 Vanta-16

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureFahrenheit (1998−2000)G400 (1999−2002)
GPU code nameNV5 B6Toucan
Market segmentDesktopDesktop
Release date22 March 1999 (25 years ago)20 May 1999 (25 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Core clock speed100 MHz125 MHz
Number of transistors15 million10 million
Manufacturing process technology250 nm250 nm
Texture fill rate0.20.25
ROPs22
TMUs22

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfaceAGP 4xPCI
Lengthno data150 mm
Width1-slot1-slot
Supplementary power connectorsNoneNone

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeSDRSDR
Maximum RAM amount16 MB32 MB
Memory bus width64 Bit128 Bit
Memory clock speed133 MHz166 MHz
Memory bandwidth1.064 GB/s2.656 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x VGA1x DVI, 1x VGA

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX6.06.0
OpenGL1.2None
OpenCLN/ANone
VulkanN/AN/A

Pros & cons summary


Recency 22 March 1999 20 May 1999
Maximum RAM amount 16 MB 32 MB

Matrox Millennium G400 has an age advantage of 1 month, and a 100% higher maximum VRAM amount.

We couldn't decide between Riva TNT2 M64 Vanta-16 and Matrox Millennium G400. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA Riva TNT2 M64 Vanta-16
Riva TNT2 M64 Vanta-16
Matrox Millennium G400
Millennium G400

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Community ratings

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4 25 votes

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5 3 votes

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Questions & comments

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