NVIDIA GeForce GTX 660 OEM vs AMD Radeon Pro V420

VS

NVIDIA GeForce GTX 660 OEM

AMD Radeon Pro V420

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM 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 OEM 's Advantages

Lower TDP (130W vs 300W)

AMD Radeon Pro V420 's Advantages

Boost Clock has increased by 91% (1700MHz vs 888MHz)

More VRAM (32GB vs 1536GB)

Larger VRAM bandwidth (819.2GB/s vs 134.4GB/s)

2944 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM

2.046 TFLOPS

AMD Radeon Pro V420 +580%

13.93 TFLOPS

GeForce GTX 660 OEM

VS

AMD Radeon Pro V420

Graphics Card

Aug 2012

Release Date

Unknown

GeForce 600

Generation

Radeon Pro Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

823 MHz

Base Clock

800 MHz

888 MHz

Boost Clock

1700 MHz

1400 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

32GB

GDDR5

Memory Type

HBM2

192bit

Memory Bus

4096bit

134.4GB/s

Bandwidth

819.2GB/s

Render Config

-

Compute Units

64

-

1152

Shading Units

4096

96

TMUs

256

24

ROPs

64

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

4 MB

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

108.8 GPixel/s

85.25 GTexel/s

Texture Rate

435.2 GTexel/s

-

FP16 (half)

27.85 TFLOPS

2.046 TFLOPS

FP32 (float)

13.93 TFLOPS

85.25 GFLOPS

FP64 (double)

6.963 TFLOPS

Board Design

130W

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 Processor

GK104

GPU Name

Vega 20

GK104-200-KD-A2

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

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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