NVIDIA GeForce GTX 660 OEM vs AMD Radeon RX 6600 LE

VS

NVIDIA GeForce GTX 660 OEM AMD Radeon RX 6600 LE

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 8GB VRAM Radeon RX 6600 LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

Lower TDP (130W vs 132W)

AMD Radeon RX 6600 LE 's Advantages

Released 11 years and 4 months late

Boost Clock has increased by 181% (2495MHz vs 888MHz)

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (224.0GB/s vs 134.4GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM

2.046 TFLOPS

Radeon RX 6600 LE +337%

8.942 TFLOPS

GeForce GTX 660 OEM

VS

Radeon RX 6600 LE

Graphics Card

Aug 2012

Release Date

Dec 2023

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

823 MHz

Base Clock

1626 MHz

888 MHz

Boost Clock

2495 MHz

1400 MHz

Memory Clock

1750 MHz

Memory

1536MB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

128bit

134.4GB/s

Bandwidth

224.0GB/s

Render Config

-

SM Count

-

Compute Units

28

1152

Shading Units

1792

96

TMUs

112

24

ROPs

64

-

Tensor Cores

-

RT Cores

28

16 KB (per SMX)

L1 Cache

128 KB per Array

384 KB

L2 Cache

2 MB

Theoretical Performance

21.31 GPixel/s

Pixel Rate

159.7 GPixel/s

85.25 GTexel/s

Texture Rate

279.4 GTexel/s

-

FP16 (half)

17.88 TFLOPS

2.046 TFLOPS

FP32 (float)

8.942 TFLOPS

85.25 GFLOPS

FP64 (double)

558.9 GFLOPS

Graphics Processor

GK104

GPU Name

Navi 23

GK104-200-KD-A2

GPU Variant

Navi 23 XL (215-130000016)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

3.54 billion

Transistors

11.06 billion

294 mm²

Die Size

237 mm²

Board Design

130W

TDP

132W

300 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.7

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