AMD Radeon HD 8470 OEM vs AMD Radeon R9 270

VS

AMD Radeon HD 8470 OEM

AMD Radeon R9 270

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8470 OEM and 2GB VRAM Radeon R9 270 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8470 OEM 's Advantages

Lower TDP (35W vs 150W)

AMD Radeon R9 270 's Advantages

Released 10 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 25.60GB/s)

1120 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8470 OEM

0.248 TFLOPS

Radeon R9 270 +854%

2.368 TFLOPS

Radeon HD 8470 OEM

VS

Radeon R9 270

Graphics Card

Jan 2013

Release Date

Nov 2013

Sea Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

800 MHz

Memory Clock

1400 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

179.2GB/s

Render Config

2

Compute Units

20

-

160

Shading Units

1280

8

TMUs

80

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

3.100 GPixel/s

Pixel Rate

29.60 GPixel/s

6.200 GTexel/s

Texture Rate

74.00 GTexel/s

-

248.0 GFLOPS

FP32 (float)

2.368 TFLOPS

-

FP64 (double)

148.0 GFLOPS

Board Design

35W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Caicos

GPU Name

Curacao

Caicos XT (215-0804070)

GPU Variant

Curacao PRO (215-0848000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.8 billion

67 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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