AMD Radeon HD 6850 X2 vs AMD Radeon HD 6870 1600SP Edition

VS

AMD Radeon HD 6850 X2 AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 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

AMD Radeon HD 6850 X2 's Advantages

More VRAM (2GB vs 1GB)

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 1 years and 4 months late

640 additional rendering cores

Lower TDP (175W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

Radeon HD 6870 1600SP Edition +77%

2.72 TFLOPS

Radeon HD 6850 X2

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Sep 2011

Release Date

Jan 2013

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

12

Compute Units

20

960

Shading Units

1600

48

TMUs

80

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

25.60 GPixel/s

Pixel Rate

27.20 GPixel/s

38.40 GTexel/s

Texture Rate

68.00 GTexel/s

-

FP16 (half)

-

1.536 TFLOPS

FP32 (float)

2.720 TFLOPS

-

FP64 (double)

544.0 GFLOPS

Graphics Processor

Barts

GPU Name

Cypress

Barts PRO (215-0798006)

GPU Variant

Cypress XT (215-0735033)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

2.154 billion

255 mm²

Die Size

334 mm²

Board Design

254W

TDP

175W

600 W

Suggested PSU

450 W

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

Outputs

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

2x 8-pin

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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