AMD Radeon R9 270 1024SP vs AMD Radeon HD 7670 OEM

VS

AMD Radeon R9 270 1024SP

AMD Radeon HD 7670 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP 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 R9 270 1024SP 's Advantages

Released 3 years and 2 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

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

544 additional rendering cores

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +146%

1.894 TFLOPS

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon R9 270 1024SP

VS

Radeon HD 7670 OEM

Graphics Card

Mar 2015

Release Date

Jan 2012

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1200 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

64.00GB/s

Render Config

16

Compute Units

6

-

1024

Shading Units

480

64

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

6.400 GPixel/s

59.20 GTexel/s

Texture Rate

19.20 GTexel/s

-

1.894 TFLOPS

FP32 (float)

768.0 GFLOPS

118.4 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

66W

450 W

Suggested PSU

250 W

2x 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

Pitcairn

GPU Name

Turks

Pitcairn PRO (215-0828062)

GPU Variant

Turks XT (215-0803000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.716 billion

212 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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