AMD Radeon RX 6600 XT vs NVIDIA GeForce GTX 1660 SUPER

VS

AMD Radeon RX 6600 XT NVIDIA GeForce GTX 1660 SUPER

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

Main Differences

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

NVIDIA GeForce GTX 1660 SUPER 's Advantages

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

Lower TDP (125W vs 160W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +110%

10.6 TFLOPS

GeForce GTX 1660 SUPER

5.027 TFLOPS

3DMark Time Spy

Radeon RX 6600 XT +60%

9578

GeForce GTX 1660 SUPER

5982

Blender

Radeon RX 6600 XT +44%

1187

GeForce GTX 1660 SUPER

822

Shadow of the Tomb Raider 2160p

Radeon RX 6600 XT +46%

38

GeForce GTX 1660 SUPER

26

Shadow of the Tomb Raider 1440p

Radeon RX 6600 XT +38%

72

GeForce GTX 1660 SUPER

52

Shadow of the Tomb Raider 1080p

Radeon RX 6600 XT +50%

119

GeForce GTX 1660 SUPER

79

Battlefield 5 2160p

Radeon RX 6600 XT +41%

58

GeForce GTX 1660 SUPER

41

Battlefield 5 1440p

Radeon RX 6600 XT +42%

111

GeForce GTX 1660 SUPER

78

Battlefield 5 1080p

Radeon RX 6600 XT +48%

144

GeForce GTX 1660 SUPER

97

GTA 5 2160p

Radeon RX 6600 XT +1%

61

GeForce GTX 1660 SUPER

60

GTA 5 1440p

Radeon RX 6600 XT +7%

82

GeForce GTX 1660 SUPER

76

GTA 5 1080p

Radeon RX 6600 XT

149

GeForce GTX 1660 SUPER +19%

178

Radeon RX 6600 XT

VS

GeForce GTX 1660 SUPER

Graphics Card

Jul 2021

Release Date

Oct 2019

Navi II

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1968 MHz

Base Clock

1530 MHz

2589 MHz

Boost Clock

1785 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

8GB

Memory Size

6GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

192bit

256.0GB/s

Bandwidth

336.0GB/s

Render Config

-

SM Count

22

32

Compute Units

-

2048

Shading Units

1408

128

TMUs

88

64

ROPs

48

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

1536 KB

Theoretical Performance

165.7 GPixel/s

Pixel Rate

85.68 GPixel/s

331.4 GTexel/s

Texture Rate

157.1 GTexel/s

21.21 TFLOPS

FP16 (half)

10.05 TFLOPS

10.60 TFLOPS

FP32 (float)

5.027 TFLOPS

662.8 GFLOPS

FP64 (double)

157.1 GFLOPS

Graphics Processor

Navi 23

GPU Name

TU116

Navi 23 XT (215-130000006)

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

Board Design

160W

TDP

125W

450 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 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

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