ATI Radeon HD 5970 vs AMD Radeon HD 8870 OEM

VS

ATI Radeon HD 5970

AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5970 's Advantages

320 additional rendering cores

AMD Radeon HD 8870 OEM 's Advantages

Released 3 years and 2 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 128.0GB/s)

Lower TDP (175W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970

2.32 TFLOPS

Radeon HD 8870 OEM +10%

2.56 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 8870 OEM

Graphics Card

Nov 2009

Release Date

Jan 2013

Evergreen

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

153.6GB/s

Render Config

20

Compute Units

20

-

1600

Shading Units

1280

80

TMUs

80

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

32.00 GPixel/s

58.00 GTexel/s

Texture Rate

80.00 GTexel/s

-

2.320 TFLOPS

FP32 (float)

2.560 TFLOPS

464.0 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

294W

TDP

175W

600 W

Suggested PSU

450 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Hemlock

GPU Name

Pitcairn

Hemlock XT (215-0735075)

GPU Variant

Pitcairn XT (215-0828047)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

2.8 billion

334 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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