AMD Radeon HD 6670 vs AMD Radeon HD 7950 Boost

VS

AMD Radeon HD 6670 AMD Radeon HD 7950 Boost

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6670 and 3GB VRAM Radeon HD 7950 Boost to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670 's Advantages

Lower TDP (66W vs 200W)

AMD Radeon HD 7950 Boost 's Advantages

Released 1 years and 2 months late

Boost Clock925MHz

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (240.0GB/s vs 64.00GB/s)

1312 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6670

0.768 TFLOPS

Radeon HD 7950 Boost +331%

3.315 TFLOPS

Radeon HD 6670

VS

Radeon HD 7950 Boost

Graphics Card

Apr 2011

Release Date

Jun 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

925 MHz

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

240.0GB/s

Render Config

-

SM Count

-

6

Compute Units

28

480

Shading Units

1792

24

TMUs

112

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

Theoretical Performance

6.400 GPixel/s

Pixel Rate

29.60 GPixel/s

19.20 GTexel/s

Texture Rate

103.6 GTexel/s

-

FP16 (half)

-

768.0 GFLOPS

FP32 (float)

3.315 TFLOPS

-

FP64 (double)

828.8 GFLOPS

Graphics Processor

Turks

GPU Name

Tahiti

Turks XT (215-0803000)

GPU Variant

Tahiti PRO2 (215-0821282)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

4.313 billion

118 mm²

Die Size

352 mm²

Board Design

66W

TDP

200W

250 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

None

Power Connectors

2x 6-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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