AMD Radeon R9 270 1024SP vs AMD Radeon HD 6770 Green Edition

VS

AMD Radeon R9 270 1024SP

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP 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 R9 270 1024SP 's Advantages

Released 1 years and 11 months late

Boost Clock925MHz

Larger VRAM bandwidth (153.6GB/s vs 21.34GB/s)

304 additional rendering cores

AMD Radeon HD 6770 Green Edition 's Advantages

Lower TDP (86W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +87%

1.894 TFLOPS

Radeon HD 6770 Green Edition

1.008 TFLOPS

Radeon R9 270 1024SP

VS

Radeon HD 6770 Green Edition

Graphics Card

Mar 2015

Release Date

Apr 2013

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1200 MHz

Memory Clock

667 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

21.34GB/s

Render Config

16

Compute Units

9

-

1024

Shading Units

720

64

TMUs

36

32

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

11.20 GPixel/s

59.20 GTexel/s

Texture Rate

25.20 GTexel/s

-

1.894 TFLOPS

FP32 (float)

1008 GFLOPS

118.4 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

86W

450 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

Juniper

Pitcairn PRO (215-0828062)

GPU Variant

Juniper LE (215-0754009)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.04 billion

212 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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