AMD Radeon HD 7950 Boost vs AMD Radeon HD 6770 Green Edition

VS

AMD Radeon HD 7950 Boost

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Boost 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 HD 7950 Boost 's Advantages

Boost Clock925MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 21.34GB/s)

1072 additional rendering cores

AMD Radeon HD 6770 Green Edition 's Advantages

Released 10 months late

Lower TDP (86W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Boost +228%

3.315 TFLOPS

Radeon HD 6770 Green Edition

1.008 TFLOPS

Radeon HD 7950 Boost

VS

Radeon HD 6770 Green Edition

Graphics Card

Jun 2012

Release Date

Apr 2013

Southern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

925 MHz

Boost Clock

-

1250 MHz

Memory Clock

667 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

240.0GB/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

29.60 GPixel/s

Pixel Rate

11.20 GPixel/s

103.6 GTexel/s

Texture Rate

25.20 GTexel/s

-

3.315 TFLOPS

FP32 (float)

1008 GFLOPS

828.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

86W

550 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

Juniper

Tahiti PRO2 (215-0821282)

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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