NVIDIA GeForce GTX 660 vs AMD Radeon RX 455 OEM

VS

NVIDIA GeForce GTX 660

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 2GB VRAM Radeon RX 455 OEM 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

Larger VRAM bandwidth (144.2GB/s vs 104.0GB/s)

192 additional rendering cores

AMD Radeon RX 455 OEM 's Advantages

Released 3 years and 9 months late

Lower TDP (100W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +22%

1.981 TFLOPS

Radeon RX 455 OEM

1.613 TFLOPS

GeForce GTX 660

VS

Radeon RX 455 OEM

Graphics Card

Sep 2012

Release Date

Jun 2016

GeForce 600

Generation

Arctic 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

1625 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

104.0GB/s

Render Config

-

Compute Units

12

-

960

Shading Units

768

80

TMUs

48

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

16.80 GPixel/s

82.56 GTexel/s

Texture Rate

50.40 GTexel/s

-

1.981 TFLOPS

FP32 (float)

1.613 TFLOPS

82.56 GFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

140W

TDP

100W

300 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GK106

GPU Name

Tobago

GK106-400-A1

GPU Variant

Tobago PRO (215-0875010)

Kepler

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

2.08 billion

221 mm²

Die Size

160 mm²

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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