NVIDIA GeForce RTX 2080 vs NVIDIA GeForce GTX 660 OEM

VS

NVIDIA GeForce RTX 2080

NVIDIA GeForce GTX 660 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2080 and 1536MB VRAM GeForce GTX 660 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 2080 's Advantages

Released 6 years and 1 months late

Boost Clock has increased by 93% (1710MHz vs 888MHz)

More VRAM (8GB vs 1536GB)

Larger VRAM bandwidth (448.0GB/s vs 134.4GB/s)

1792 additional rendering cores

NVIDIA GeForce GTX 660 OEM 's Advantages

Lower TDP (130W vs 215W)

Score

Benchmark

FP32 (float)

GeForce RTX 2080 +392%

10.07 TFLOPS

GeForce GTX 660 OEM

2.046 TFLOPS

GeForce RTX 2080

VS

GeForce GTX 660 OEM

Graphics Card

Sep 2018

Release Date

Aug 2012

GeForce 20

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1515 MHz

Base Clock

823 MHz

1710 MHz

Boost Clock

888 MHz

1750 MHz

Memory Clock

1400 MHz

Memory

8GB

Memory Size

1536MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

448.0GB/s

Bandwidth

134.4GB/s

Render Config

-

46

SM Count

-

2944

Shading Units

1152

184

TMUs

96

64

ROPs

24

368

Tensor Cores

-

46

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

384 KB

-

Theoretical Performance

109.4 GPixel/s

Pixel Rate

21.31 GPixel/s

314.6 GTexel/s

Texture Rate

85.25 GTexel/s

20.14 TFLOPS

FP16 (half)

-

10.07 TFLOPS

FP32 (float)

2.046 TFLOPS

314.6 GFLOPS

FP64 (double)

85.25 GFLOPS

Board Design

215W

TDP

130W

550 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

TU104

GPU Name

GK104

TU104-400A-A1

GPU Variant

GK104-200-KD-A2

Turing

Architecture

Kepler

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

13.6 billion

Transistors

3.54 billion

545 mm²

Die Size

294 mm²

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

7.5

CUDA

3.0

6.6

Shader Model

5.1

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