ATI Radeon HD 5870 vs AMD Radeon HD 6870 X2

VS

ATI Radeon HD 5870 AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5870 and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5870 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 134.4GB/s)

480 additional rendering cores

Lower TDP (188W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Released 1 years and 10 months late

Score

Benchmark

FP32 (float)

Radeon HD 5870 +34%

2.72 TFLOPS

Radeon HD 6870 X2

2.016 TFLOPS

Radeon HD 5870

VS

Radeon HD 6870 X2

Graphics Card

Sep 2009

Release Date

Jul 2011

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1200 MHz

Memory Clock

1050 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

20

Compute Units

14

1600

Shading Units

1120

80

TMUs

56

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

28.80 GPixel/s

68.00 GTexel/s

Texture Rate

50.40 GTexel/s

-

FP16 (half)

-

2.720 TFLOPS

FP32 (float)

2.016 TFLOPS

544.0 GFLOPS

FP64 (double)

-

Graphics Processor

Cypress

GPU Name

Barts

Cypress XT (215-0735033)

GPU Variant

Barts XT (215-0798000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

1.7 billion

334 mm²

Die Size

255 mm²

Board Design

188W

TDP

300W

450 W

Suggested PSU

700 W

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

Outputs

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

2x 6-pin

Power Connectors

-

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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