AMD Radeon HD 6850 X2 vs ATI Radeon HD 5870 Eyefinity 6

VS

AMD Radeon HD 6850 X2

ATI Radeon HD 5870 Eyefinity 6

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 2GB VRAM Radeon HD 5870 Eyefinity 6 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Released 1 years and 6 months late

ATI Radeon HD 5870 Eyefinity 6 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 134.4GB/s)

640 additional rendering cores

Lower TDP (228W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

Radeon HD 5870 Eyefinity 6 +77%

2.72 TFLOPS

Radeon HD 6850 X2

VS

Radeon HD 5870 Eyefinity 6

Graphics Card

Sep 2011

Release Date

Mar 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

153.6GB/s

Render Config

12

Compute Units

20

-

960

Shading Units

1600

48

TMUs

80

32

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

27.20 GPixel/s

38.40 GTexel/s

Texture Rate

68.00 GTexel/s

-

1.536 TFLOPS

FP32 (float)

2.720 TFLOPS

-

FP64 (double)

544.0 GFLOPS

Board Design

254W

TDP

228W

600 W

Suggested PSU

550 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

6x mini-DisplayPort 1.1

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

Cypress

Barts PRO (215-0798006)

GPU Variant

Cypress XT (215-0735033)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

2.154 billion

255 mm²

Die Size

334 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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