ATI Radeon HD 5870 Eyefinity 6 vs NVIDIA GeForce GTX 660

VS

ATI Radeon HD 5870 Eyefinity 6

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 5870 Eyefinity 6 and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5870 Eyefinity 6 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 144.2GB/s)

640 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Released 2 years and 6 months late

Boost Clock1032MHz

Lower TDP (140W vs 228W)

Score

Benchmark

FP32 (float)

Radeon HD 5870 Eyefinity 6 +37%

2.72 TFLOPS

GeForce GTX 660

1.981 TFLOPS

Radeon HD 5870 Eyefinity 6

VS

GeForce GTX 660

Graphics Card

Mar 2010

Release Date

Sep 2012

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

1200 MHz

Memory Clock

1502 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

153.6GB/s

Bandwidth

144.2GB/s

Render Config

20

Compute Units

-

1600

Shading Units

960

80

TMUs

80

32

ROPs

24

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

20.64 GPixel/s

68.00 GTexel/s

Texture Rate

82.56 GTexel/s

-

2.720 TFLOPS

FP32 (float)

1.981 TFLOPS

544.0 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

228W

TDP

140W

550 W

Suggested PSU

300 W

6x mini-DisplayPort 1.1

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Cypress

GPU Name

GK106

Cypress XT (215-0735033)

GPU Variant

GK106-400-A1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

2.54 billion

334 mm²

Die Size

221 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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