NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon Pro V420

VS

NVIDIA GeForce GTX 660 Rev. 2 AMD Radeon Pro V420

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 32GB VRAM AMD Radeon Pro V420 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 300W)

AMD Radeon Pro V420 's Advantages

Boost Clock has increased by 65% (1700MHz vs 1032MHz)

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (819.2GB/s vs 144.2GB/s)

3136 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

AMD Radeon Pro V420 +603%

13.93 TFLOPS

GeForce GTX 660 Rev. 2

VS

AMD Radeon Pro V420

Graphics Card

Sep 2014

Release Date

Unknown

GeForce 600

Generation

Radeon Pro Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

980 MHz

Base Clock

800 MHz

1032 MHz

Boost Clock

1700 MHz

1502 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

32GB

GDDR5

Memory Type

HBM2

192bit

Memory Bus

4096bit

144.2GB/s

Bandwidth

819.2GB/s

Render Config

-

SM Count

-

Compute Units

64

960

Shading Units

4096

80

TMUs

256

24

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

4 MB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

108.8 GPixel/s

82.56 GTexel/s

Texture Rate

435.2 GTexel/s

-

FP16 (half)

27.85 TFLOPS

1.981 TFLOPS

FP32 (float)

13.93 TFLOPS

82.56 GFLOPS

FP64 (double)

6.963 TFLOPS

Graphics Processor

GK104

GPU Name

Vega 20

-

GPU Variant

Vega 20 GLXT WS (215-0914026)

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

Board Design

140W

TDP

300W

300 W

Suggested PSU

700 W

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

Outputs

6x mini-DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

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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