AMD Radeon RX 6600 LE vs NVIDIA GeForce GTX 1660
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 6GB VRAM GeForce GTX 1660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600 LE 's Advantages
Released 4 years and 9 months late
Boost Clock has increased by 40% (2495MHz vs 1785MHz)
More VRAM (8GB vs 6GB)
Larger VRAM bandwidth (224.0GB/s vs 192.1GB/s)
384 additional rendering cores
NVIDIA GeForce GTX 1660 's Advantages
Lower TDP (120W vs 132W)
Score
Benchmark
FP32 (float)
Radeon RX 6600 LE
+77%
8.942 TFLOPS
GeForce GTX 1660
5.027 TFLOPS
3DMark Time Spy
Radeon RX 6600 LE
+41%
7720
GeForce GTX 1660
5444
3DMark Time Spy Extreme
Radeon RX 6600 LE
+39%
3428
GeForce GTX 1660
2465
Graphics Card
Dec 2023
Release Date
Mar 2019
Navi II
Generation
GeForce 16
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1626 MHz
Base Clock
1530 MHz
2495 MHz
Boost Clock
1785 MHz
1750 MHz
Memory Clock
2001 MHz
Memory
8GB
Memory Size
6GB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
192bit
224.0GB/s
Bandwidth
192.1GB/s
Render Config
28
Compute Units
-
-
SM Count
22
1792
Shading Units
1408
112
TMUs
88
64
ROPs
48
-
-
-
28
RT Cores
-
128 KB per Array
L1 Cache
64 KB (per SM)
2 MB
L2 Cache
1536 KB
32 MB
L3 Cache
-
Theoretical Performance
159.7 GPixel/s
Pixel Rate
85.68 GPixel/s
279.4 GTexel/s
Texture Rate
157.1 GTexel/s
17.88 TFLOPS
FP16 (half)
10.05 TFLOPS
8.942 TFLOPS
FP32 (float)
5.027 TFLOPS
558.9 GFLOPS
FP64 (double)
157.1 GFLOPS
Board Design
132W
TDP
120W
300 W
Suggested PSU
300 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 2.0
1x DisplayPort 1.4a
1x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Navi 23
GPU Name
TU116
Navi 23 XL
(215-130000016)
GPU Variant
TU116-300-A1
RDNA 2.0
Architecture
Turing
TSMC
Foundry
TSMC
7 nm
Process Size
12 nm
11.06 billion
Transistors
6.6 billion
237 mm²
Die Size
284 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_1)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.3
-
CUDA
7.5
6.7
Shader Model
6.6
