AMD Radeon R9 380X vs AMD Radeon HD 6450 OEM

VS

AMD Radeon R9 380X

AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 512MB VRAM Radeon HD 6450 OEM 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 9 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (182.4GB/s vs 8.528GB/s)

1888 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380X +1886%

3.973 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon R9 380X

VS

Radeon HD 6450 OEM

Graphics Card

Nov 2015

Release Date

Feb 2011

Pirate Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1425 MHz

Memory Clock

533 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

182.4GB/s

Bandwidth

8.528GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

160

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

31.04 GPixel/s

Pixel Rate

2.500 GPixel/s

124.2 GTexel/s

Texture Rate

5.000 GTexel/s

3.973 TFLOPS

FP16 (half)

-

3.973 TFLOPS

FP32 (float)

200.0 GFLOPS

248.3 GFLOPS

FP64 (double)

-

Board Design

190W

TDP

18W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Antigua

GPU Name

Caicos

Antigua XT (215-0877016)

GPU Variant

Junbonator

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

0.37 billion

366 mm²

Die Size

67 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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