NVIDIA GeForce RTX 4090 Ti vs NVIDIA GeForce GTX 660 Ti

VS

NVIDIA GeForce RTX 4090 Ti NVIDIA GeForce GTX 660 Ti

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

Main Differences

NVIDIA GeForce RTX 4090 Ti 's Advantages

Boost Clock has increased by 162% (2565MHz vs 980MHz)

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1152GB/s vs 144.2GB/s)

16832 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 600W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti +3439%

93.24 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

GeForce RTX 4090 Ti

VS

GeForce GTX 660 Ti

Graphics Card

Unknown

Release Date

Aug 2012

GeForce 40

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2325 MHz

Base Clock

915 MHz

2565 MHz

Boost Clock

980 MHz

1500 MHz

Memory Clock

1502 MHz

Memory

24GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

192bit

1152GB/s

Bandwidth

144.2GB/s

Render Config

142

SM Count

-

Compute Units

-

18176

Shading Units

1344

568

TMUs

112

192

ROPs

24

568

Tensor Cores

-

142

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

96 MB

L2 Cache

384 KB

Theoretical Performance

492.5 GPixel/s

Pixel Rate

27.44 GPixel/s

1457 GTexel/s

Texture Rate

109.8 GTexel/s

93.24 TFLOPS

FP16 (half)

-

93.24 TFLOPS

FP32 (float)

2.634 TFLOPS

1457 GFLOPS

FP64 (double)

109.8 GFLOPS

Graphics Processor

AD102

GPU Name

GK104

AD102-400-A1

GPU Variant

GK104-300-KD-A2

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

3.54 billion

609 mm²

Die Size

294 mm²

Board Design

600W

TDP

150W

1000 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

2x 16-pin

Power Connectors

2x 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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