NVIDIA GeForce GTX 660 vs AMD Radeon RX 6300

VS

NVIDIA GeForce GTX 660

AMD Radeon RX 6300

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 2GB VRAM Radeon RX 6300 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Larger VRAM bandwidth (144.2GB/s vs 64.00GB/s)

192 additional rendering cores

AMD Radeon RX 6300 's Advantages

Boost Clock has increased by 98% (2040MHz vs 1032MHz)

Lower TDP (32W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660

1.981 TFLOPS

Radeon RX 6300 +58%

3.133 TFLOPS

GeForce GTX 660

VS

Radeon RX 6300

Graphics Card

Sep 2012

Release Date

Unknown

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

980 MHz

Base Clock

1000 MHz

1032 MHz

Boost Clock

2040 MHz

1502 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

32bit

144.2GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

12

-

960

Shading Units

768

80

TMUs

48

24

ROPs

32

-

RT Cores

12

16 KB (per SMX)

L1 Cache

128 KB per Array

384 KB

L2 Cache

1024 KB

-

L3 Cache

8 MB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

65.28 GPixel/s

82.56 GTexel/s

Texture Rate

97.92 GTexel/s

-

FP16 (half)

6.267 TFLOPS

1.981 TFLOPS

FP32 (float)

3.133 TFLOPS

82.56 GFLOPS

FP64 (double)

195.8 GFLOPS

Board Design

140W

TDP

32W

300 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

2x HDMI 2.1

1x 6-pin

Power Connectors

None

Graphics Processor

GK106

GPU Name

Navi 24

GK106-400-A1

GPU Variant

Navi 24 XL

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

2.54 billion

Transistors

5.4 billion

221 mm²

Die Size

107 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.7

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