NVIDIA GeForce RTX 4080 vs NVIDIA GeForce GTX 660 Ti

VS

NVIDIA GeForce RTX 4080 NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 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 4080 's Advantages

Released 10 years and 1 months late

Boost Clock has increased by 156% (2505MHz vs 980MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (716.8GB/s vs 144.2GB/s)

8384 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 +1750%

48.74 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

3DMark Time Spy

GeForce RTX 4080 +1636%

28257

GeForce GTX 660 Ti

1627

GeForce RTX 4080

VS

GeForce GTX 660 Ti

Graphics Card

Sep 2022

Release Date

Aug 2012

GeForce 40

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2205 MHz

Base Clock

915 MHz

2505 MHz

Boost Clock

980 MHz

1400 MHz

Memory Clock

1502 MHz

Memory

16GB

Memory Size

2GB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

192bit

716.8GB/s

Bandwidth

144.2GB/s

Render Config

76

SM Count

-

Compute Units

-

9728

Shading Units

1344

304

TMUs

112

ROPs

24

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

64 MB

L2 Cache

384 KB

Theoretical Performance

280.6 GPixel/s

Pixel Rate

27.44 GPixel/s

761.5 GTexel/s

Texture Rate

109.8 GTexel/s

48.74 TFLOPS

FP16 (half)

-

48.74 TFLOPS

FP32 (float)

2.634 TFLOPS

761.5 GFLOPS

FP64 (double)

109.8 GFLOPS

Graphics Processor

AD103

GPU Name

GK104

AD103-300-A1

GPU Variant

GK104-300-KD-A2

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

45.9 billion

Transistors

3.54 billion

379 mm²

Die Size

294 mm²

Board Design

320W

TDP

150W

700 W

Suggested PSU

450 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

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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