NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce RTX 2080 Ti

VS

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce RTX 2080 Ti

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 11GB VRAM GeForce RTX 2080 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Lower TDP (140W vs 250W)

NVIDIA GeForce RTX 2080 Ti 's Advantages

Released 4 years late

Boost Clock has increased by 50% (1545MHz vs 1032MHz)

More VRAM (11GB vs 2GB)

Larger VRAM bandwidth (616.0GB/s vs 144.2GB/s)

3392 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

GeForce RTX 2080 Ti +578%

13.45 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce RTX 2080 Ti

Graphics Card

Sep 2014

Release Date

Sep 2018

GeForce 600

Generation

GeForce 20

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

1350 MHz

1032 MHz

Boost Clock

1545 MHz

1502 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

11GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

352bit

144.2GB/s

Bandwidth

616.0GB/s

Render Config

-

SM Count

68

960

Shading Units

4352

80

TMUs

272

24

ROPs

88

-

Tensor Cores

544

-

RT Cores

68

16 KB (per SMX)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

0 MB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

136.0 GPixel/s

82.56 GTexel/s

Texture Rate

420.2 GTexel/s

-

FP16 (half)

26.90 TFLOPS

1.981 TFLOPS

FP32 (float)

13.45 TFLOPS

82.56 GFLOPS

FP64 (double)

420.2 GFLOPS

Board Design

140W

TDP

250W

300 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.0 3x DisplayPort 1.4a 1x USB Type-C

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK104

GPU Name

TU102

-

GPU Variant

TU102-300A-K1-A1

Kepler

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

3.54 billion

Transistors

18.6 billion

294 mm²

Die Size

754 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

7.5

5.1

Shader Model

6.6

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