AMD Radeon HD 7770 GHz Edition vs AMD Radeon R9 380 OEM

VS

AMD Radeon HD 7770 GHz Edition

AMD Radeon R9 380 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 4GB VRAM Radeon R9 380 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages

Lower TDP (80W vs 190W)

AMD Radeon R9 380 OEM 's Advantages

Released 3 years and 3 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 72.00GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon R9 380 OEM +157%

3.29 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon R9 380 OEM

Graphics Card

Feb 2012

Release Date

May 2015

Southern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

176.0GB/s

Render Config

10

Compute Units

28

-

640

Shading Units

1792

40

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

29.38 GPixel/s

40.00 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

1280 GFLOPS

FP32 (float)

3.290 TFLOPS

80.00 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

80W

TDP

190W

250 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

Antigua

Cape Verde XT

GPU Variant

Antigua PRO (215-0877000)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

5 billion

123 mm²

Die Size

366 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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