NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon RX Vega 64 Limited Edition

VS

NVIDIA GeForce GTX 660 Rev. 2

AMD Radeon RX Vega 64 Limited Edition

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 8GB VRAM Radeon RX Vega 64 Limited Edition 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 295W)

AMD Radeon RX Vega 64 Limited Edition 's Advantages

Released 2 years and 11 months late

Boost Clock has increased by 50% (1546MHz vs 1032MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (483.8GB/s vs 144.2GB/s)

3136 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon RX Vega 64 Limited Edition +539%

12.66 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon RX Vega 64 Limited Edition

Graphics Card

Sep 2014

Release Date

Aug 2017

GeForce 600

Generation

Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

1247 MHz

1032 MHz

Boost Clock

1546 MHz

1502 MHz

Memory Clock

945 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

HBM2

192bit

Memory Bus

2048bit

144.2GB/s

Bandwidth

483.8GB/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

98.94 GPixel/s

82.56 GTexel/s

Texture Rate

395.8 GTexel/s

-

FP16 (half)

25.33 TFLOPS

1.981 TFLOPS

FP32 (float)

12.66 TFLOPS

82.56 GFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

140W

TDP

295W

300 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK104

GPU Name

Vega 10

-

GPU Variant

Vega 10 XT (215-0894200)

Kepler

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

3.54 billion

Transistors

12.5 billion

294 mm²

Die Size

495 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.4

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