AMD Radeon R9 380X vs AMD Radeon HD 6950

VS

AMD Radeon R9 380X

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 2GB VRAM Radeon HD 6950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages

Released 4 years and 11 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (182.4GB/s vs 160.0GB/s)

640 additional rendering cores

Lower TDP (190W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 380X +76%

3.973 TFLOPS

Radeon HD 6950

2.253 TFLOPS

Radeon R9 380X

VS

Radeon HD 6950

Graphics Card

Nov 2015

Release Date

Dec 2010

Pirate Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1425 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

182.4GB/s

Bandwidth

160.0GB/s

Render Config

32

Compute Units

22

-

2048

Shading Units

1408

128

TMUs

88

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

31.04 GPixel/s

Pixel Rate

25.60 GPixel/s

124.2 GTexel/s

Texture Rate

70.40 GTexel/s

3.973 TFLOPS

FP16 (half)

-

3.973 TFLOPS

FP32 (float)

2.253 TFLOPS

248.3 GFLOPS

FP64 (double)

563.2 GFLOPS

Board Design

190W

TDP

200W

450 W

Suggested PSU

550 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Antigua

GPU Name

Cayman

Antigua XT (215-0877016)

GPU Variant

Cayman PRO (215-0807019)

GCN 3.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

2.64 billion

366 mm²

Die Size

389 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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