NVIDIA GeForce RTX 3080 Ti Max Q vs NVIDIA GeForce GTX 660
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Sep 2012
Generation
GeForce 30 Mobile
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
585 MHz
980 MHz
Boost Clock
1125 MHz
1032 MHz
Memory Clock
1500 MHz
1502 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
192bit
Bandwidth
384.0GB/s
144.2GB/s
Render Config
SM Count
58
—
Shading Units
7424
960
TMUs
232
80
ROPs
96
24
Tensor Cores
232
—
RT Cores
58
—
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
4 MB
384 KB
Theoretical Performance
Pixel Rate
108.0 GPixel/s
20.64 GPixel/s
Texture Rate
261.0 GTexel/s
82.56 GTexel/s
FP16 (half)
16.70 TFLOPS
—
FP32 (float)
16.70 TFLOPS
1.981 TFLOPS
FP64 (double)
261.0 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
GA103S
GK106
GPU Variant
GN20-E8-A1
GK106-400-A1
Architecture
Ampere
Kepler
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
Unknown
2.54 billion
Die Size
496 mm²
221 mm²
Board Design
TDP
80W
140W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
8.6
3.0
Shader Model
6.5
5.1
Benchmark
3DMark Time Spy
—
1,194
3DMark Time Spy Extreme
—
260
OctaneBench
—
27
Blender
—
111
▲ Specs Compare
Data sourced from official specifications and benchmark tests.