NVIDIA GeForce GTX 660 vs AMD Radeon RX 550 512SP

VS

NVIDIA GeForce GTX 660 AMD Radeon RX 550 512SP

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 2GB VRAM Radeon RX 550 512SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Larger VRAM bandwidth (144.2GB/s vs 96.00GB/s)

448 additional rendering cores

AMD Radeon RX 550 512SP 's Advantages

Released 5 years and 1 months late

Boost Clock has increased by 4% (1071MHz vs 1032MHz)

Lower TDP (50W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +80%

1.981 TFLOPS

Radeon RX 550 512SP

1.097 TFLOPS

GeForce GTX 660

VS

Radeon RX 550 512SP

Graphics Card

Sep 2012

Release Date

Oct 2017

GeForce 600

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

980 MHz

Base Clock

1019 MHz

1032 MHz

Boost Clock

1071 MHz

1502 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

Compute Units

8

960

Shading Units

512

80

TMUs

32

24

ROPs

16

-

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

17.14 GPixel/s

82.56 GTexel/s

Texture Rate

34.27 GTexel/s

-

FP16 (half)

1097 GFLOPS

1.981 TFLOPS

FP32 (float)

1097 GFLOPS

82.56 GFLOPS

FP64 (double)

68.54 GFLOPS

Graphics Processor

GK106

GPU Name

Baffin

GK106-400-A1

GPU Variant

Baffin LE

Kepler

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.54 billion

Transistors

3 billion

221 mm²

Die Size

123 mm²

Board Design

140W

TDP

50W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_0)

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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