AMD Radeon RX 455 OEM vs ATI Radeon HD 4890

VS

AMD Radeon RX 455 OEM

ATI Radeon HD 4890

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 1024MB VRAM Radeon HD 4890 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 2 months late

More VRAM (2GB vs 1024GB)

Lower TDP (100W vs 190W)

ATI Radeon HD 4890 's Advantages

Larger VRAM bandwidth (124.8GB/s vs 104.0GB/s)

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM +18%

1.613 TFLOPS

Radeon HD 4890

1.36 TFLOPS

Radeon RX 455 OEM

VS

Radeon HD 4890

Graphics Card

Jun 2016

Release Date

Apr 2009

Arctic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1625 MHz

Memory Clock

975 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

104.0GB/s

Bandwidth

124.8GB/s

Render Config

12

Compute Units

10

-

768

Shading Units

800

48

TMUs

40

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

13.60 GPixel/s

50.40 GTexel/s

Texture Rate

34.00 GTexel/s

-

1.613 TFLOPS

FP32 (float)

1360 GFLOPS

100.8 GFLOPS

FP64 (double)

272.0 GFLOPS

Board Design

100W

TDP

190W

300 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Tobago

GPU Name

RV790

Tobago PRO (215-0875010)

GPU Variant

RV790 XT (215-0758016)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.959 billion

160 mm²

Die Size

282 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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