ATI Radeon HD 3830 vs AMD Radeon R9 285X

VS

ATI Radeon HD 3830

AMD Radeon R9 285X

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3830 and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3830 's Advantages

Lower TDP (75W vs 200W)

AMD Radeon R9 285X 's Advantages

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (264.0GB/s vs 26.50GB/s)

1728 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3830

0.428 TFLOPS

Radeon R9 285X +858%

4.104 TFLOPS

Radeon HD 3830

VS

Radeon R9 285X

Graphics Card

Apr 2008

Release Date

Unknown

Radeon R600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1375 MHz

Memory

256MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

26.50GB/s

Bandwidth

264.0GB/s

Render Config

4

Compute Units

32

-

320

Shading Units

2048

16

TMUs

128

16

ROPs

32

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

768 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

32.06 GPixel/s

10.69 GTexel/s

Texture Rate

128.3 GTexel/s

-

427.5 GFLOPS

FP32 (float)

4.104 TFLOPS

85.50 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

200W

250 W

Suggested PSU

550 W

No outputs

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV670

GPU Name

Tonga

RV670 PRO (215-0708003)

GPU Variant

Tonga XT (215-0851313)

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

5 billion

192 mm²

Die Size

366 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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