A100 PCIe 80 GB vs GeForce GTX 660 Rev. 2

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GTX 645 OEM GTX 650 GTX 650 Ti GTX 650 Ti Boost GTX 660 GTX 660 OEM GTX 660 Rev. 2 GTX 660 Ti GTX 670 GTX 680 GTX 690 GTX 750 Ti
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A30 PCIe A100 PCIe A100 PCIe 40 GB A100 PCIe 80 GB A100 SXM4 A100 SXM4 40 GB A100 SXM4 80 GB A800 PCIe 40 GB A800 PCIe 80 GB A800 SXM4 80 GB CMP 170HX Tesla A100

Contents

GTX 660 Rev. 2 GTX 660 Rev. 2
A100 PCIe 80 GB A100 PCIe 80 GB

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
ArchitectureKepler (2012−2018)Ampere (2020−2024)
GPU code nameGK104GA100
Market segmentDesktopWorkstation
Release date13 September 2014 (10 years ago)28 June 2021 (3 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 cores9606912
Core clock speed980 MHz1065 MHz
Boost clock speed1032 MHz1410 MHz
Number of transistors3,540 million54,200 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)140 Watt250 Watt
Texture fill rate82.56609.1
Floating-point processing power1.981 TFLOPS19.49 TFLOPS
ROPs24160
TMUs80432
Tensor Coresno data432

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).

InterfacePCIe 3.0 x16PCIe 4.0 x16
Length241 mm267 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pin8-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 typeGDDR5HBM2e
Maximum RAM amount2 GB80 GB
Memory bus width192 Bit5120 Bit
Memory clock speed1502 MHz1593 MHz
Memory bandwidth144.2 GB/s2,039 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 Connectors2x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

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

DirectX12 (11_0)N/A
Shader Model5.1N/A
OpenGL4.6N/A
OpenCL1.23.0
Vulkan1.1.126N/A
CUDA3.08.0

Pros & cons summary

Recency 13 September 2014 28 June 2021
Maximum RAM amount 2 GB 80 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 140 Watt 250 Watt

GTX 660 Rev. 2 has 78.6% lower power consumption.

A100 PCIe 80 GB, on the other hand, has an age advantage of 6 years, a 3900% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between GeForce GTX 660 Rev. 2 and A100 PCIe 80 GB. We've got no test results to judge.

Be aware that GeForce GTX 660 Rev. 2 is a desktop card while A100 PCIe 80 GB 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 GeForce GTX 660 Rev. 2
GeForce GTX 660 Rev. 2
NVIDIA A100 PCIe 80 GB
A100 PCIe 80 GB
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Comparisons with similar GPUs

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Community ratings

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

3.5 49 votes

Rate GeForce GTX 660 Rev. 2 on a scale of 1 to 5:

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3.3 68 votes

Rate A100 PCIe 80 GB on a scale of 1 to 5:

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Questions & comments

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