AMD Radeon VII vs NVIDIA GeForce GTX 660

VS

We compared two Desktop platform GPUs: 16GB VRAM Radeon VII 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 VII 's Advantages

Released 6 years and 5 months late

Boost Clock has increased by 70% (1750MHz vs 1032MHz)

More VRAM (16GB vs 2GB)

2880 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Larger VRAM bandwidth (144.2TB/s vs 1.02TB/s)

Lower TDP (140W vs 295W)

Score

Benchmark

FP32 (float)

Radeon VII +578%

13.44 TFLOPS

GeForce GTX 660

1.981 TFLOPS

3DMark Time Spy

Radeon VII +611%

9294

GeForce GTX 660

1307

Blender

Radeon VII +522%

772

GeForce GTX 660

124

Radeon VII

VS

GeForce GTX 660

Graphics Card

Feb 2019

Release Date

Sep 2012

Vega II

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1400 MHz

Base Clock

980 MHz

1750 MHz

Boost Clock

1032 MHz

1000 MHz

Memory Clock

1502 MHz

Memory

16GB

Memory Size

2GB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

192bit

1.02TB/s

Bandwidth

144.2GB/s

Render Config

-

SM Count

-

60

Compute Units

-

3840

Shading Units

960

240

TMUs

80

64

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

384 KB

Theoretical Performance

112.0 GPixel/s

Pixel Rate

20.64 GPixel/s

420.0 GTexel/s

Texture Rate

82.56 GTexel/s

26.88 TFLOPS

FP16 (half)

-

13.44 TFLOPS

FP32 (float)

1.981 TFLOPS

3.360 TFLOPS

FP64 (double)

82.56 GFLOPS

Graphics Processor

Vega 20

GPU Name

GK106

Vega 20 XT

GPU Variant

GK106-400-A1

GCN 5.1

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

13.23 billion

Transistors

2.54 billion

331 mm²

Die Size

221 mm²

Board Design

295W

TDP

140W

600 W

Suggested PSU

300 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (12_1)

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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