AMD Radeon HD 7950 Monica BIOS 2 vs AMD Radeon HD 6670

VS

AMD Radeon HD 7950 Monica BIOS 2

AMD Radeon HD 6670

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 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 HD 7950 Monica BIOS 2 's Advantages

Released 9 months late

More VRAM (3GB vs 1024GB)

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

288 additional rendering cores

AMD Radeon HD 6670 's Advantages

Lower TDP (66W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Monica BIOS 2 +60%

1.229 TFLOPS

Radeon HD 6670

0.768 TFLOPS

Radeon HD 7950 Monica BIOS 2

VS

Radeon HD 6670

Graphics Card

Jan 2012

Release Date

Apr 2011

Southern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

64.00GB/s

Render Config

12

Compute Units

6

-

768

Shading Units

480

48

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

6.400 GPixel/s

38.40 GTexel/s

Texture Rate

19.20 GTexel/s

-

1229 GFLOPS

FP32 (float)

768.0 GFLOPS

307.2 GFLOPS

FP64 (double)

-

Board Design

85W

TDP

66W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Turks

Tahiti PRO (215-0821056)

GPU Variant

Turks XT (215-0803000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.716 billion

352 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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