AMD Radeon RX 6900 XTX vs NVIDIA GeForce GTX 1660 SUPER

VS

AMD Radeon RX 6900 XTX

NVIDIA GeForce GTX 1660 SUPER

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX 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 6900 XTX 's Advantages

Boost Clock has increased by 36% (2435MHz vs 1785MHz)

More VRAM (16GB vs 6GB)

Larger VRAM bandwidth (576.0GB/s vs 336.0GB/s)

3712 additional rendering cores

NVIDIA GeForce GTX 1660 SUPER 's Advantages

Lower TDP (125W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +395%

24.93 TFLOPS

GeForce GTX 1660 SUPER

5.027 TFLOPS

Radeon RX 6900 XTX

VS

GeForce GTX 1660 SUPER

Graphics Card

Unknown

Release Date

Oct 2019

Navi II

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2075 MHz

Base Clock

1530 MHz

2435 MHz

Boost Clock

1785 MHz

2250 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

6GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

336.0GB/s

Render Config

80

Compute Units

-

SM Count

22

5120

Shading Units

1408

320

TMUs

88

128

ROPs

48

-

80

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

1536 KB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

85.68 GPixel/s

779.2 GTexel/s

Texture Rate

157.1 GTexel/s

49.87 TFLOPS

FP16 (half)

10.05 TFLOPS

24.93 TFLOPS

FP32 (float)

5.027 TFLOPS

1.558 TFLOPS

FP64 (double)

157.1 GFLOPS

Board Design

330W

TDP

125W

700 W

Suggested PSU

300 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 21

GPU Name

TU116

Navi 21 XTXH (215-121000247)

GPU Variant

TU116-300-A1

RDNA 2.0

Architecture

Turing

TSMC

Foundry

TSMC

7 nm

Process Size

12 nm

26.8 billion

Transistors

6.6 billion

520 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

6.5

Shader Model

6.6

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