AMD Radeon R9 380 vs AMD Radeon HD 7950

VS

AMD Radeon R9 380

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 380 and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380 's Advantages

Released 3 years and 5 months late

Lower TDP (190W vs 200W)

AMD Radeon HD 7950 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 176.0GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 380 +21%

3.476 TFLOPS

Radeon HD 7950

2.867 TFLOPS

3DMark Time Spy

Radeon R9 380 +45%

2794

Radeon HD 7950

1917

Radeon R9 380

VS

Radeon HD 7950

Graphics Card

Jun 2015

Release Date

Jan 2012

Pirate Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

176.0GB/s

Bandwidth

240.0GB/s

Render Config

28

Compute Units

28

-

1792

Shading Units

1792

112

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

31.04 GPixel/s

Pixel Rate

25.60 GPixel/s

108.6 GTexel/s

Texture Rate

89.60 GTexel/s

3.476 TFLOPS

FP16 (half)

-

3.476 TFLOPS

FP32 (float)

2.867 TFLOPS

217.3 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

190W

TDP

200W

450 W

Suggested PSU

550 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Antigua

GPU Name

Tahiti

Antigua PRO (215-0877000)

GPU Variant

Tahiti PRO (215-0821056)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

4.313 billion

366 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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