AMD Radeon RX 455 OEM vs ATI Radeon HD 4830

VS

AMD Radeon RX 455 OEM

ATI Radeon HD 4830

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM 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 RX 455 OEM 's Advantages

Released 7 years and 8 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (104.0GB/s vs 57.60GB/s)

128 additional rendering cores

ATI Radeon HD 4830 's Advantages

Lower TDP (95W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM +119%

1.613 TFLOPS

Radeon HD 4830

0.736 TFLOPS

Radeon RX 455 OEM

VS

Radeon HD 4830

Graphics Card

Jun 2016

Release Date

Oct 2008

Arctic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1625 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

104.0GB/s

Bandwidth

57.60GB/s

Render Config

12

Compute Units

8

-

768

Shading Units

640

48

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

9.200 GPixel/s

50.40 GTexel/s

Texture Rate

18.40 GTexel/s

-

1.613 TFLOPS

FP32 (float)

736.0 GFLOPS

100.8 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

100W

TDP

95W

300 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Tobago

GPU Name

RV770

Tobago PRO (215-0875010)

GPU Variant

RV770 LE (215-0669075)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.956 billion

160 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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