AMD Radeon R9 380X vs ATI Radeon HD 3870

VS

AMD Radeon R9 380X

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages

Released 8 years late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (182.4GB/s vs 72.06GB/s)

1728 additional rendering cores

ATI Radeon HD 3870 's Advantages

Lower TDP (106W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380X +699%

3.973 TFLOPS

Radeon HD 3870

0.497 TFLOPS

Radeon R9 380X

VS

Radeon HD 3870

Graphics Card

Nov 2015

Release Date

Nov 2007

Pirate Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1425 MHz

Memory Clock

1126 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

256bit

182.4GB/s

Bandwidth

72.06GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

31.04 GPixel/s

Pixel Rate

12.43 GPixel/s

124.2 GTexel/s

Texture Rate

12.43 GTexel/s

3.973 TFLOPS

FP16 (half)

-

3.973 TFLOPS

FP32 (float)

497.3 GFLOPS

248.3 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

190W

TDP

106W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Antigua

GPU Name

RV670

Antigua XT (215-0877016)

GPU Variant

RV670 XT (215-0708005)

GCN 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

5 billion

Transistors

0.666 billion

366 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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