NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon R9 285

VS

NVIDIA GeForce GTX 660 Rev. 2 AMD Radeon R9 285

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 2GB VRAM Radeon R9 285 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

Boost Clock1032MHz

Lower TDP (140W vs 190W)

AMD Radeon R9 285 's Advantages

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

832 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon R9 285 +66%

3.29 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon R9 285

Graphics Card

Sep 2014

Release Date

Sep 2014

GeForce 600

Generation

Volcanic 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

29.38 GPixel/s

82.56 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

1.981 TFLOPS

FP32 (float)

3.290 TFLOPS

82.56 GFLOPS

FP64 (double)

205.6 GFLOPS

Graphics Processor

GK104

GPU Name

Tonga

-

GPU Variant

Tonga PRO (215-0851128)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

5 billion

294 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

2.1

1.1

Vulkan

1.2.170

3.0

CUDA

-

5.1

Shader Model

6.5

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