AMD Radeon HD 6990 vs AMD Radeon HD 8570 OEM

VS

AMD Radeon HD 6990

AMD Radeon HD 8570 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 2GB VRAM Radeon HD 8570 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1152 additional rendering cores

AMD Radeon HD 8570 OEM 's Advantages

Released 1 years and 10 months late

Boost Clock780MHz

Lower TDP (50W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +325%

2.55 TFLOPS

Radeon HD 8570 OEM

0.599 TFLOPS

Radeon HD 6990

VS

Radeon HD 8570 OEM

Graphics Card

Mar 2011

Release Date

Jan 2013

Northern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

780 MHz

1250 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

28.80GB/s

Render Config

24

Compute Units

6

-

1536

Shading Units

384

96

TMUs

24

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

6.240 GPixel/s

79.68 GTexel/s

Texture Rate

18.72 GTexel/s

-

2.550 TFLOPS

FP32 (float)

599.0 GFLOPS

637.4 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

375W

TDP

50W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

Oland

Antilles XT (215-0807027)

GPU Variant

-

TeraScale 3

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

0.95 billion

389 mm²

Die Size

77 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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