AMD Radeon R9 390 X2 vs ATI Radeon HD 4830

VS

AMD Radeon R9 390 X2

ATI Radeon HD 4830

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 512MB VRAM Radeon HD 4830 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 6 years and 11 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (345.6GB/s vs 57.60GB/s)

1920 additional rendering cores

ATI Radeon HD 4830 's Advantages

Lower TDP (95W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +595%

5.12 TFLOPS

Radeon HD 4830

0.736 TFLOPS

Radeon R9 390 X2

VS

Radeon HD 4830

Graphics Card

Sep 2015

Release Date

Oct 2008

Pirate Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

256bit

345.6GB/s

Bandwidth

57.60GB/s

Render Config

40

Compute Units

8

-

2560

Shading Units

640

160

TMUs

32

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

9.200 GPixel/s

160.0 GTexel/s

Texture Rate

18.40 GTexel/s

-

5.120 TFLOPS

FP32 (float)

736.0 GFLOPS

640.0 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

580W

TDP

95W

950 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

4x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Grenada

GPU Name

RV770

Grenada PRO (215-0880030)

GPU Variant

RV770 LE (215-0669075)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

0.956 billion

438 mm²

Die Size

256 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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