AMD Radeon HD 8470 OEM vs AMD Radeon HD 6990

VS

AMD Radeon HD 8470 OEM

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8470 OEM and 2GB VRAM Radeon HD 6990 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 1 years and 10 months late

Lower TDP (35W vs 375W)

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 25.60GB/s)

1376 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8470 OEM

0.248 TFLOPS

Radeon HD 6990 +928%

2.55 TFLOPS

Radeon HD 8470 OEM

VS

Radeon HD 6990

Graphics Card

Jan 2013

Release Date

Mar 2011

Sea Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

160.0GB/s

Render Config

2

Compute Units

24

-

160

Shading Units

1536

8

TMUs

96

4

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

3.100 GPixel/s

Pixel Rate

26.56 GPixel/s

6.200 GTexel/s

Texture Rate

79.68 GTexel/s

-

248.0 GFLOPS

FP32 (float)

2.550 TFLOPS

-

FP64 (double)

637.4 GFLOPS

Board Design

35W

TDP

375W

200 W

Suggested PSU

750 W

1x DVI 1x HDMI 1.3a

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

Caicos

GPU Name

Antilles

Caicos XT (215-0804070)

GPU Variant

Antilles XT (215-0807027)

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

2.64 billion

67 mm²

Die Size

389 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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