RTX A40 vs Riva TNT2 M64

VS

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)Ampere (2020−2024)
GPU code nameNV5 B6GA102
Market segmentDesktopWorkstation
Release date12 October 1999 (25 years ago)5 October 2020 (4 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.

Pipelines / CUDA coresno data10752
Core clock speed125 MHz1305 MHz
Boost clock speedno data1755 MHz
Number of transistors15 million28,300 million
Manufacturing process technology250 nm8 nm
Power consumption (TDP)no data300 Watt
Texture fill rate0.25589.7
Floating-point processing powerno data37.74 TFLOPS
ROPs2112
TMUs2336
Tensor Coresno data336
Ray Tracing Coresno data84

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 4xPCIe 4.0 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectorsNone8-pin EPS

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 typeSDRGDDR6
Maximum RAM amount16 MB48 GB
Memory bus width64 Bit384 Bit
Memory clock speed143 MHz1812 MHz
Memory bandwidth1.144 GB/s695.8 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 VGA3x DisplayPort

API compatibility

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

DirectX6.012 Ultimate (12_2)
Shader Modelno data6.5
OpenGL1.24.6
OpenCLN/A2.0
VulkanN/A1.2
CUDA-8.6

Pros & cons summary


Recency 12 October 1999 5 October 2020
Maximum RAM amount 16 MB 48 GB
Chip lithography 250 nm 8 nm

RTX A40 has an age advantage of 20 years, a 307100% higher maximum VRAM amount, and a 3025% more advanced lithography process.

We couldn't decide between Riva TNT2 M64 and RTX A40. We've got no test results to judge.

Be aware that Riva TNT2 M64 is a desktop card while RTX A40 is a workstation one.


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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA Riva TNT2 M64
Riva TNT2 M64
NVIDIA RTX A40
RTX A40

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.8 30 votes

Rate Riva TNT2 M64 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
1.4 394 votes

Rate RTX A40 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.