NVIDIA GeForce GTX 660 Rev. 2 vs ATI Radeon HD 5870 Mac Edition

VS

NVIDIA GeForce GTX 660 Rev. 2

ATI Radeon HD 5870 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 1024MB VRAM Radeon HD 5870 Mac 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

Released 4 years and 3 months late

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

Lower TDP (140W vs 228W)

ATI Radeon HD 5870 Mac Edition 's Advantages

Larger VRAM bandwidth (153.0GB/s vs 144.2GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

Radeon HD 5870 Mac Edition +37%

2.72 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon HD 5870 Mac Edition

Graphics Card

Sep 2014

Release Date

Jun 2010

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

1195 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

153.0GB/s

Render Config

-

Compute Units

20

-

960

Shading Units

1600

80

TMUs

80

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

27.20 GPixel/s

82.56 GTexel/s

Texture Rate

68.00 GTexel/s

-

1.981 TFLOPS

FP32 (float)

2.720 TFLOPS

82.56 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

140W

TDP

228W

300 W

Suggested PSU

550 W

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

Outputs

1x DVI 2x mini-DisplayPort 1.1

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GK104

GPU Name

Cypress

-

GPU Variant

Cypress XT (215-0735033)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

2.154 billion

294 mm²

Die Size

334 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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