AMD Radeon RX 455 OEM vs AMD Radeon HD 6670

VS

AMD Radeon RX 455 OEM AMD Radeon HD 6670

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 1024MB VRAM Radeon HD 6670 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 5 years and 2 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (104.0GB/s vs 64.00GB/s)

288 additional rendering cores

AMD Radeon HD 6670 's Advantages

Lower TDP (66W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM +110%

1.613 TFLOPS

Radeon HD 6670

0.768 TFLOPS

Radeon RX 455 OEM

VS

Radeon HD 6670

Graphics Card

Jun 2016

Release Date

Apr 2011

Arctic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1625 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

104.0GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

12

Compute Units

6

768

Shading Units

480

48

TMUs

24

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

16.80 GPixel/s

Pixel Rate

6.400 GPixel/s

50.40 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

1.613 TFLOPS

FP32 (float)

768.0 GFLOPS

100.8 GFLOPS

FP64 (double)

-

Graphics Processor

Tobago

GPU Name

Turks

Tobago PRO (215-0875010)

GPU Variant

Turks XT (215-0803000)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

0.716 billion

160 mm²

Die Size

118 mm²

Board Design

100W

TDP

66W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

5.0

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