AMD Radeon HD 6670 vs AMD Radeon R7 450 OEM

VS

AMD Radeon HD 6670

AMD Radeon R7 450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6670 and 2GB VRAM Radeon R7 450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 450 OEM 's Advantages

Released 5 years and 2 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)

32 additional rendering cores

Lower TDP (65W vs 66W)

Score

Benchmark

FP32 (float)

Radeon HD 6670

0.768 TFLOPS

Radeon R7 450 OEM +23%

0.947 TFLOPS

Radeon HD 6670

VS

Radeon R7 450 OEM

Graphics Card

Apr 2011

Release Date

Jun 2016

Northern Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

72.00GB/s

Render Config

6

Compute Units

8

-

480

Shading Units

512

24

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

14.80 GPixel/s

19.20 GTexel/s

Texture Rate

29.60 GTexel/s

-

768.0 GFLOPS

FP32 (float)

947.2 GFLOPS

-

FP64 (double)

59.20 GFLOPS

Board Design

66W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

None

Graphics Processor

Turks

GPU Name

Cape Verde

Turks XT (215-0803000)

GPU Variant

Cape Verde PRO2

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.5 billion

118 mm²

Die Size

123 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5 (5.1)

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