NVIDIA GeForce GTX 660 vs NVIDIA A100 PCIe 80 GB
GPU · Specs Compare
Graphics Card
Release Date
Sep 2012
Jun 2021
Generation
GeForce 600
Tesla Ampere(Axx)
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
980 MHz
1065 MHz
Boost Clock
1032 MHz
1410 MHz
Memory Clock
1502 MHz
1512 MHz
Memory
Memory Size
2GB
80GB
Memory Type
GDDR5
HBM2e
Memory Bus
192bit
5120bit
Bandwidth
144.2GB/s
1.94TB/s
Render Config
Shading Units
960
6912
TMUs
80
432
ROPs
24
160
L1 Cache
16 KB (per SMX)
192 KB (per SM)
L2 Cache
384 KB
80 MB
SM Count
—
108
Tensor Cores
—
432
Theoretical Performance
Pixel Rate
20.64 GPixel/s
225.6 GPixel/s
Texture Rate
82.56 GTexel/s
609.1 GTexel/s
FP32 (float)
1.981 TFLOPS
19.49 TFLOPS
FP64 (double)
82.56 GFLOPS
9.746 TFLOPS
FP16 (half)
—
77.97 TFLOPS
Graphics Processor
GPU Name
GK106
GA100
GPU Variant
GK106-400-A1
—
Architecture
Kepler
Ampere
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.54 billion
54.2 billion
Die Size
221 mm²
826 mm²
Board Design
TDP
140W
300W
Suggested PSU
300 W
700 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
8-pin EPS
Graphics Features
DirectX
12 (11_0)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.1
N/A
CUDA
3.0
8.0
Shader Model
5.1
N/A
Benchmark
3DMark Time Spy
1,194
—
3DMark Time Spy Extreme
260
—
OctaneBench
27
310
Blender
111
3,722
▲ Specs Compare
Data sourced from official specifications and benchmark tests.