AMD Radeon RX 455 OEM vs AMD Radeon HD 7670 OEM

VS

AMD Radeon RX 455 OEM

AMD Radeon HD 7670 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 512MB VRAM Radeon HD 7670 OEM 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 4 years and 5 months late

More VRAM (2GB vs 512GB)

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

288 additional rendering cores

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM +110%

1.613 TFLOPS

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon RX 455 OEM

VS

Radeon HD 7670 OEM

Graphics Card

Jun 2016

Release Date

Jan 2012

Arctic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1625 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

104.0GB/s

Bandwidth

64.00GB/s

Render Config

12

Compute Units

6

-

768

Shading Units

480

48

TMUs

24

16

ROPs

8

-

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

-

1.613 TFLOPS

FP32 (float)

768.0 GFLOPS

100.8 GFLOPS

FP64 (double)

-

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 DisplayPort 1.1 1x VGA

1x 6-pin

Power Connectors

None

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

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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