NVIDIA GeForce RTX 4090D vs NVIDIA GeForce GTX 660

VS

NVIDIA GeForce RTX 4090D NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090D and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090D 's Advantages

Released 11 years and 3 months late

Boost Clock has increased by 144% (2520MHz vs 1032MHz)

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1008GB/s vs 144.2GB/s)

13632 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 425W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090D +3612%

73.54 TFLOPS

GeForce GTX 660

1.981 TFLOPS

GeForce RTX 4090D

VS

GeForce GTX 660

Graphics Card

Dec 2023

Release Date

Sep 2012

GeForce 40

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2280 MHz

Base Clock

980 MHz

2520 MHz

Boost Clock

1032 MHz

1313 MHz

Memory Clock

1502 MHz

Memory

24GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

192bit

1008GB/s

Bandwidth

144.2GB/s

Render Config

114

SM Count

-

Compute Units

-

14592

Shading Units

960

456

TMUs

80

176

ROPs

24

456

Tensor Cores

-

114

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

72 MB

L2 Cache

384 KB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

20.64 GPixel/s

1149 GTexel/s

Texture Rate

82.56 GTexel/s

73.54 TFLOPS

FP16 (half)

-

73.54 TFLOPS

FP32 (float)

1.981 TFLOPS

1149 GFLOPS

FP64 (double)

82.56 GFLOPS

Graphics Processor

AD102

GPU Name

GK106

AD102-250-A1

GPU Variant

GK106-400-A1

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

2.54 billion

609 mm²

Die Size

221 mm²

Board Design

425W

TDP

140W

800 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 16-pin

Power Connectors

1x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.9

CUDA

3.0

6.7

Shader Model

5.1

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