AMD Radeon RX 6900 XT vs NVIDIA GeForce GTX 1660 Ti
GPU · Specs Compare
Graphics Card
Release Date
Oct 2020
Feb 2019
Generation
Navi II
GeForce 16
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1825 MHz
1500 MHz
Boost Clock
2250 MHz
1770 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
16GB
6GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
192bit
Bandwidth
512.0GB/s
288.0GB/s
Render Config
Compute Units
80
—
Shading Units
5120
1536
TMUs
320
96
ROPs
128
48
RT Cores
80
—
L1 Cache
128 KB per Array
64 KB (per SM)
L2 Cache
4 MB
1536 KB
L3 Cache
128 MB
—
SM Count
—
24
Theoretical Performance
Pixel Rate
288.0 GPixel/s
84.96 GPixel/s
Texture Rate
720.0 GTexel/s
169.9 GTexel/s
FP16 (half)
46.08 TFLOPS
10.87 TFLOPS
FP32 (float)
23.04 TFLOPS
5.437 TFLOPS
FP64 (double)
1440.0 GFLOPS
169.9 GFLOPS
Graphics Processor
GPU Name
Navi 21
TU116
GPU Variant
Navi 21 XTX(215-121000167)
TU116-400-A1
Architecture
RDNA 2.0
Turing
Foundry
TSMC
TSMC
Process Size
7 nm
12 nm
Transistors
26.8 billion
6.6 billion
Die Size
520 mm²
284 mm²
Board Design
TDP
300W
120W
Suggested PSU
700 W
300 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x DVI1x HDMI 2.01x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.4
1.3
Shader Model
6.8
6.6
CUDA
—
7.5
Benchmark
3DMark Time Spy
20,764
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
Blender
—
817
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.