AMD Radeon R9 380 OEM vs ATI Radeon HD 3850

VS

AMD Radeon R9 380 OEM

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380 OEM and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380 OEM 's Advantages

Released 7 years and 6 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (176.0GB/s vs 53.12GB/s)

1472 additional rendering cores

ATI Radeon HD 3850 's Advantages

Lower TDP (75W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380 OEM +668%

3.29 TFLOPS

Radeon HD 3850

0.428 TFLOPS

Radeon R9 380 OEM

VS

Radeon HD 3850

Graphics Card

May 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

-

1375 MHz

Memory Clock

830 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

53.12GB/s

Render Config

28

Compute Units

4

-

1792

Shading Units

320

112

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.38 GPixel/s

Pixel Rate

10.69 GPixel/s

102.8 GTexel/s

Texture Rate

10.69 GTexel/s

3.290 TFLOPS

FP16 (half)

-

3.290 TFLOPS

FP32 (float)

427.5 GFLOPS

205.6 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

190W

TDP

75W

450 W

Suggested PSU

250 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 PRO (215-0877000)

GPU Variant

RV670 PRO (215-0708003)

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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