NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon Pro Vega II

VS

NVIDIA GeForce GTX 660 Rev. 2

AMD Radeon Pro Vega II

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 32GB VRAM Radeon Pro Vega II 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 475W)

AMD Radeon Pro Vega II 's Advantages

Released 4 years and 9 months late

Boost Clock has increased by 67% (1720MHz vs 1032MHz)

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (825.3GB/s vs 144.2GB/s)

3136 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon Pro Vega II +611%

14.09 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon Pro Vega II

Graphics Card

Sep 2014

Release Date

Jun 2019

GeForce 600

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

Apple MPX

Clock Speeds

980 MHz

Base Clock

1574 MHz

1032 MHz

Boost Clock

1720 MHz

1502 MHz

Memory Clock

806 MHz

Memory

2GB

Memory Size

32GB

GDDR5

Memory Type

HBM2

192bit

Memory Bus

4096bit

144.2GB/s

Bandwidth

825.3GB/s

Render Config

-

Compute Units

64

-

960

Shading Units

4096

80

TMUs

256

24

ROPs

64

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

4 MB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

110.1 GPixel/s

82.56 GTexel/s

Texture Rate

440.3 GTexel/s

-

FP16 (half)

28.18 TFLOPS

1.981 TFLOPS

FP32 (float)

14.09 TFLOPS

82.56 GFLOPS

FP64 (double)

7.045 TFLOPS

Board Design

140W

TDP

475W

300 W

Suggested PSU

850 W

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

Outputs

1x HDMI 2.0b 4x Thunderbolt

1x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Vega 20

-

GPU Variant

Vega 20 XT

Kepler

Architecture

GCN 5.1

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

3.54 billion

Transistors

13.23 billion

294 mm²

Die Size

331 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.7

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