AMD Radeon R9 270 vs AMD Radeon R9 380 OEM

VS

AMD Radeon R9 270

AMD Radeon R9 380 OEM

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

Boost Clock925MHz

Larger VRAM bandwidth (179.2GB/s vs 176.0GB/s)

Lower TDP (150W vs 190W)

AMD Radeon R9 380 OEM 's Advantages

Released 1 years and 6 months late

More VRAM (4GB vs 2GB)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 270

2.368 TFLOPS

Radeon R9 380 OEM +38%

3.29 TFLOPS

Radeon R9 270

VS

Radeon R9 380 OEM

Graphics Card

Nov 2013

Release Date

May 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

176.0GB/s

Render Config

20

Compute Units

28

-

1280

Shading Units

1792

80

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

29.38 GPixel/s

74.00 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

2.368 TFLOPS

FP32 (float)

3.290 TFLOPS

148.0 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

150W

TDP

190W

450 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Curacao

GPU Name

Antigua

Curacao PRO (215-0848000)

GPU Variant

Antigua PRO (215-0877000)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

5 billion

212 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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