AMD Radeon Pro W6800X vs NVIDIA GeForce GTX 660

VS

AMD Radeon Pro W6800X

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800X 's Advantages

Released 8 years and 11 months late

Boost Clock has increased by 102% (2087MHz vs 1032MHz)

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 144.2GB/s)

2880 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 200W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X +709%

16.03 TFLOPS

GeForce GTX 660

1.981 TFLOPS

Blender

Radeon Pro W6800X +1179%

1420

GeForce GTX 660

111

Radeon Pro W6800X

VS

GeForce GTX 660

Graphics Card

Aug 2021

Release Date

Sep 2012

Radeon Pro Mac

Generation

GeForce 600

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

980 MHz

2087 MHz

Boost Clock

1032 MHz

2000 MHz

Memory Clock

1502 MHz

Memory

32GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

512.0GB/s

Bandwidth

144.2GB/s

Render Config

60

Compute Units

-

3840

Shading Units

960

240

TMUs

80

96

ROPs

24

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

384 KB

128 MB

L3 Cache

-

Theoretical Performance

200.4 GPixel/s

Pixel Rate

20.64 GPixel/s

500.9 GTexel/s

Texture Rate

82.56 GTexel/s

32.06 TFLOPS

FP16 (half)

-

16.03 TFLOPS

FP32 (float)

1.981 TFLOPS

1002 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

200W

TDP

140W

550 W

Suggested PSU

300 W

1x HDMI 2.1 4x Thunderbolt

Outputs

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

Apple MPX

Power Connectors

1x 6-pin

Graphics Processor

Navi 21

GPU Name

GK106

Navi 21 Pro-XLA

GPU Variant

GK106-400-A1

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

2.54 billion

520 mm²

Die Size

221 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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