ATI Radeon HD 5670 640SP Edition vs AMD Radeon HD 6870 1600SP Edition

VS

ATI Radeon HD 5670 640SP Edition AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 5670 640SP Edition and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5670 640SP Edition 's Advantages

Lower TDP (64W vs 175W)

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 2 years and 6 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 64.00GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5670 640SP Edition

0.96 TFLOPS

Radeon HD 6870 1600SP Edition +183%

2.72 TFLOPS

Radeon HD 5670 640SP Edition

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Jul 2010

Release Date

Jan 2013

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

1050 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

8

Compute Units

20

640

Shading Units

1600

32

TMUs

80

8

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

6.000 GPixel/s

Pixel Rate

27.20 GPixel/s

24.00 GTexel/s

Texture Rate

68.00 GTexel/s

-

FP16 (half)

-

960.0 GFLOPS

FP32 (float)

2.720 TFLOPS

-

FP64 (double)

544.0 GFLOPS

Graphics Processor

Juniper

GPU Name

Cypress

Juniper CE

GPU Variant

Cypress XT (215-0735033)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

2.154 billion

166 mm²

Die Size

334 mm²

Board Design

64W

TDP

175W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

2x 6-pin

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

-

CUDA

-

5.0

Shader Model

5.0

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