NVIDIA GeForce GTX 660 vs AMD Radeon R9 380

VS

NVIDIA GeForce GTX 660 AMD Radeon R9 380

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 2GB VRAM Radeon R9 380 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Boost Clock1032MHz

Lower TDP (140W vs 190W)

AMD Radeon R9 380 's Advantages

Released 2 years and 9 months late

Larger VRAM bandwidth (176.0GB/s vs 144.2GB/s)

832 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660

1.981 TFLOPS

Radeon R9 380 +75%

3.476 TFLOPS

3DMark Time Spy

GeForce GTX 660

1308

Radeon R9 380 +113%

2791

GeForce GTX 660

VS

Radeon R9 380

Graphics Card

Sep 2012

Release Date

Jun 2015

GeForce 600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

176.0GB/s

Render Config

-

SM Count

-

Compute Units

28

960

Shading Units

1792

80

TMUs

112

24

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

512 KB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

31.04 GPixel/s

82.56 GTexel/s

Texture Rate

108.6 GTexel/s

-

FP16 (half)

3.476 TFLOPS

1.981 TFLOPS

FP32 (float)

3.476 TFLOPS

82.56 GFLOPS

FP64 (double)

217.3 GFLOPS

Graphics Processor

GK106

GPU Name

Antigua

GK106-400-A1

GPU Variant

Antigua PRO (215-0877000)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

5 billion

221 mm²

Die Size

366 mm²

Board Design

140W

TDP

190W

300 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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