AMD Radeon RX 6900 XTX vs NVIDIA GeForce GTX 1660 Ti

VS

AMD Radeon RX 6900 XTX NVIDIA GeForce GTX 1660 Ti

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 6GB VRAM GeForce GTX 1660 Ti 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 38% (2435MHz vs 1770MHz)

More VRAM (16GB vs 6GB)

Larger VRAM bandwidth (576.0GB/s vs 288.0GB/s)

3584 additional rendering cores

NVIDIA GeForce GTX 1660 Ti 's Advantages

Lower TDP (120W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +358%

24.93 TFLOPS

GeForce GTX 1660 Ti

5.437 TFLOPS

Radeon RX 6900 XTX

VS

GeForce GTX 1660 Ti

Graphics Card

Unknown

Release Date

Feb 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

1500 MHz

2435 MHz

Boost Clock

1770 MHz

2250 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

6GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

24

80

Compute Units

-

5120

Shading Units

1536

320

TMUs

96

128

ROPs

48

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

1536 KB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

84.96 GPixel/s

779.2 GTexel/s

Texture Rate

169.9 GTexel/s

49.87 TFLOPS

FP16 (half)

10.87 TFLOPS

24.93 TFLOPS

FP32 (float)

5.437 TFLOPS

1.558 TFLOPS

FP64 (double)

169.9 GFLOPS

Graphics Processor

Navi 21

GPU Name

TU116

Navi 21 XTXH (215-121000247)

GPU Variant

TU116-400-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

Board Design

330W

TDP

120W

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 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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