NVIDIA GeForce RTX 3080 vs NVIDIA GeForce GTX 1660
GPU · Specs Compare
Graphics Card
Release Date
Sep 2020
Mar 2019
Generation
GeForce 30
GeForce 16
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1440 MHz
1530 MHz
Boost Clock
1710 MHz
1785 MHz
Memory Clock
1188 MHz
2001 MHz
Memory
Memory Size
10GB
6GB
Memory Type
GDDR6X
GDDR5
Memory Bus
320bit
192bit
Bandwidth
760.3GB/s
192.1GB/s
Render Config
SM Count
68
22
Shading Units
8704
1408
TMUs
272
88
ROPs
96
48
Tensor Cores
272
—
RT Cores
68
—
L1 Cache
128 KB (per SM)
64 KB (per SM)
L2 Cache
5 MB
1536 KB
Theoretical Performance
Pixel Rate
164.2 GPixel/s
85.68 GPixel/s
Texture Rate
465.1 GTexel/s
157.1 GTexel/s
FP16 (half)
29.77 TFLOPS
10.05 TFLOPS
FP32 (float)
29.77 TFLOPS
5.027 TFLOPS
FP64 (double)
465.1 GFLOPS
157.1 GFLOPS
Graphics Processor
GPU Name
GA102
TU116
GPU Variant
GA102-200-KD-A1
TU116-300-A1
Architecture
Ampere
Turing
Foundry
Samsung
TSMC
Process Size
8 nm
12 nm
Transistors
28.3 billion
6.6 billion
Die Size
628 mm²
284 mm²
Board Design
TDP
320W
120W
Suggested PSU
700 W
300 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Power Connectors
1x 12-pin
1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.3
CUDA
8.6
7.5
Shader Model
6.6
6.6
Benchmark
3DMark Time Spy
17,662
5,444
3DMark Time Spy Extreme
8,879
2,465
▲ Specs Compare
Data sourced from official specifications and benchmark tests.