AMD Radeon R9 390 X2 vs ATI Radeon HD 3830

VS

AMD Radeon R9 390 X2

ATI Radeon HD 3830

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 256MB VRAM Radeon HD 3830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 7 years and 5 months late

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (345.6GB/s vs 26.50GB/s)

2240 additional rendering cores

ATI Radeon HD 3830 's Advantages

Lower TDP (75W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +1096%

5.12 TFLOPS

Radeon HD 3830

0.428 TFLOPS

Radeon R9 390 X2

VS

Radeon HD 3830

Graphics Card

Sep 2015

Release Date

Apr 2008

Pirate Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

828 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

26.50GB/s

Render Config

40

Compute Units

4

-

2560

Shading Units

320

160

TMUs

16

64

ROPs

16

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

10.69 GPixel/s

160.0 GTexel/s

Texture Rate

10.69 GTexel/s

-

5.120 TFLOPS

FP32 (float)

427.5 GFLOPS

640.0 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

580W

TDP

75W

950 W

Suggested PSU

250 W

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

Outputs

No outputs

4x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Grenada

GPU Name

RV670

Grenada PRO (215-0880030)

GPU Variant

RV670 PRO (215-0708003)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

0.666 billion

438 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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