AMD Radeon HD 8470 OEM vs AMD Radeon HD 7850

VS

AMD Radeon HD 8470 OEM

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8470 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 8470 OEM 's Advantages

Released 10 months late

Lower TDP (35W vs 130W)

AMD Radeon HD 7850 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 25.60GB/s)

864 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8470 OEM

0.248 TFLOPS

Radeon HD 7850 +610%

1.761 TFLOPS

Radeon HD 8470 OEM

VS

Radeon HD 7850

Graphics Card

Jan 2013

Release Date

Mar 2012

Sea Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

153.6GB/s

Render Config

2

Compute Units

16

-

160

Shading Units

1024

8

TMUs

64

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

27.52 GPixel/s

6.200 GTexel/s

Texture Rate

55.04 GTexel/s

-

248.0 GFLOPS

FP32 (float)

1.761 TFLOPS

-

FP64 (double)

110.1 GFLOPS

Board Design

35W

TDP

130W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Caicos

GPU Name

Pitcairn

Caicos XT (215-0804070)

GPU Variant

Pitcairn PRO (215-0828062)

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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