NVIDIA GeForce GTX 1660 SUPER vs AMD Radeon RX 6600 XT

VS

NVIDIA GeForce GTX 1660 SUPER

AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 1660 SUPER and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1660 SUPER 's Advantages

Larger VRAM bandwidth (336.0GB/s vs 256.0GB/s)

Lower TDP (125W vs 160W)

AMD Radeon RX 6600 XT 's Advantages

Released 1 years and 9 months late

Boost Clock has increased by 45% (2589MHz vs 1785MHz)

More VRAM (8GB vs 6GB)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 1660 SUPER

5.027 TFLOPS

Radeon RX 6600 XT +110%

10.6 TFLOPS

3DMark Time Spy

GeForce GTX 1660 SUPER

5987

Radeon RX 6600 XT +59%

9579

Blender

GeForce GTX 1660 SUPER

880

Radeon RX 6600 XT +35%

1196

Shadow of the Tomb Raider 2160p

GeForce GTX 1660 SUPER

26

Radeon RX 6600 XT +46%

38

Shadow of the Tomb Raider 1440p

GeForce GTX 1660 SUPER

52

Radeon RX 6600 XT +38%

72

Shadow of the Tomb Raider 1080p

GeForce GTX 1660 SUPER

79

Radeon RX 6600 XT +50%

119

Battlefield 5 2160p

GeForce GTX 1660 SUPER

41

Radeon RX 6600 XT +41%

58

Battlefield 5 1440p

GeForce GTX 1660 SUPER

78

Radeon RX 6600 XT +42%

111

Battlefield 5 1080p

GeForce GTX 1660 SUPER

97

Radeon RX 6600 XT +48%

144

GTA 5 2160p

GeForce GTX 1660 SUPER

60

Radeon RX 6600 XT +1%

61

GTA 5 1440p

GeForce GTX 1660 SUPER

76

Radeon RX 6600 XT +7%

82

GTA 5 1080p

GeForce GTX 1660 SUPER +19%

178

Radeon RX 6600 XT

149

GeForce GTX 1660 SUPER

VS

Radeon RX 6600 XT

Graphics Card

Oct 2019

Release Date

Jul 2021

GeForce 16

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1530 MHz

Base Clock

1968 MHz

1785 MHz

Boost Clock

2589 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

6GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

192bit

Memory Bus

128bit

336.0GB/s

Bandwidth

256.0GB/s

Render Config

-

Compute Units

32

22

SM Count

-

1408

Shading Units

2048

88

TMUs

128

48

ROPs

64

-

RT Cores

32

64 KB (per SM)

L1 Cache

128 KB per Array

1536 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

85.68 GPixel/s

Pixel Rate

165.7 GPixel/s

157.1 GTexel/s

Texture Rate

331.4 GTexel/s

10.05 TFLOPS

FP16 (half)

21.21 TFLOPS

5.027 TFLOPS

FP32 (float)

10.60 TFLOPS

157.1 GFLOPS

FP64 (double)

662.8 GFLOPS

Board Design

125W

TDP

160W

300 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0 1x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

TU116

GPU Name

Navi 23

TU116-300-A1

GPU Variant

Navi 23 XT (215-130000006)

Turing

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

7 nm

6.6 billion

Transistors

11.06 billion

284 mm²

Die Size

237 mm²

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

7.5

CUDA

-

6.6

Shader Model

6.7

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