AMD Radeon HD 7670 OEM vs AMD Radeon HD 7850

VS

AMD Radeon HD 7670 OEM

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 7670 OEM and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 130W)

AMD Radeon HD 7850 's Advantages

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 64.00GB/s)

544 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon HD 7850 +129%

1.761 TFLOPS

Radeon HD 7670 OEM

VS

Radeon HD 7850

Graphics Card

Jan 2012

Release Date

Mar 2012

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1200 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

153.6GB/s

Render Config

6

Compute Units

16

-

480

Shading Units

1024

24

TMUs

64

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

27.52 GPixel/s

19.20 GTexel/s

Texture Rate

55.04 GTexel/s

-

768.0 GFLOPS

FP32 (float)

1.761 TFLOPS

-

FP64 (double)

110.1 GFLOPS

Board Design

66W

TDP

130W

250 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1.1 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Turks

GPU Name

Pitcairn

Turks XT (215-0803000)

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

2.8 billion

118 mm²

Die Size

212 mm²

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

-

5.0

Shader Model

5.1

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