NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GTX 1660 Ti
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Feb 2019
Generation
Navi IV
GeForce 16
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
1500 MHz
Boost Clock
3130 MHz
1770 MHz
Memory Clock
2518 MHz
1500 MHz
Memory
Memory Size
8GB
6GB
Memory Type
GDDR6
GDDR6
Memory Bus
128bit
192bit
Bandwidth
322.3GB/s
288.0GB/s
Render Config
SM Count
80
24
Compute Units
32
—
Shading Units
2048
1536
TMUs
128
96
ROPs
64
48
Tensor Cores
320
—
RT Cores
32
—
L1 Cache
128 KB (per SM)
64 KB (per SM)
L2 Cache
4 MB
1536 KB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
200.3 GPixel/s
84.96 GPixel/s
Texture Rate
400.6 GTexel/s
169.9 GTexel/s
FP16 (half)
51.28 TFLOPS
10.87 TFLOPS
FP32 (float)
25.64 TFLOPS
5.437 TFLOPS
FP64 (double)
801.3 GFLOPS
169.9 GFLOPS
Graphics Processor
GPU Name
Navi 44
TU116
GPU Variant
Navi 44 XT(215-176400102)
TU116-400-A1
Architecture
RDNA 4.0
Turing
Foundry
TSMC
TSMC
Process Size
4 nm
12 nm
Transistors
29.7 billion
6.6 billion
Die Size
199 mm²
284 mm²
Board Design
TDP
150W
120W
Suggested PSU
450 W
300 W
Outputs
1x HDMI 2.1b2x DisplayPort 2.1a
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Power Connectors
1x 8-pin
1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.2
3.0
Vulkan
1.3
1.3
CUDA
8.6
7.5
Shader Model
6.8
6.6
Benchmark
Blender
5,956
817
3DMark Time Spy
—
6,346
3DMark Time Spy Extreme
—
2,883
OctaneBench
—
126
Battlefield 5 1080p
—
103
Shadow of the Tomb Raider 2160p
—
28
Shadow of the Tomb Raider 1440p
—
52
Shadow of the Tomb Raider 1080p
—
80
Battlefield 5 2160p
—
44
Battlefield 5 1440p
—
80
GTA 5 2160p
—
60
GTA 5 1440p
—
62
GTA 5 1080p
—
154
▲ Specs Compare
Data sourced from official specifications and benchmark tests.