AMD Radeon Sky 700 vs AMD Radeon HD 6770 Green Edition

VS

AMD Radeon Sky 700

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 6GB VRAM Radeon Sky 700 and 2GB VRAM Radeon HD 6770 Green Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 700 's Advantages

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 21.34GB/s)

1072 additional rendering cores

AMD Radeon HD 6770 Green Edition 's Advantages

Lower TDP (86W vs 225W)

Score

Benchmark

FP32 (float)

Radeon Sky 700 +220%

3.226 TFLOPS

Radeon HD 6770 Green Edition

1.008 TFLOPS

Radeon Sky 700

VS

Radeon HD 6770 Green Edition

Graphics Card

Mar 2013

Release Date

Apr 2013

Radeon Sky

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

667 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

21.34GB/s

Render Config

28

Compute Units

9

-

1792

Shading Units

720

112

TMUs

36

32

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

11.20 GPixel/s

100.8 GTexel/s

Texture Rate

25.20 GTexel/s

-

3.226 TFLOPS

FP32 (float)

1008 GFLOPS

806.4 GFLOPS

FP64 (double)

-

Board Design

225W

TDP

86W

550 W

Suggested PSU

250 W

1x DisplayPort 1.2

Outputs

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

1x 8-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

Juniper

Tahiti PRO GL

GPU Variant

Juniper LE (215-0754009)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.04 billion

352 mm²

Die Size

166 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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