AMD Radeon HD 6870 X2 vs AMD Radeon HD 6930

VS

AMD Radeon HD 6870 X2

AMD Radeon HD 6930

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 1024MB VRAM Radeon HD 6930 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6930 's Advantages

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

160 additional rendering cores

Lower TDP (186W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +5%

2.016 TFLOPS

Radeon HD 6930

1.92 TFLOPS

Radeon HD 6870 X2

VS

Radeon HD 6930

Graphics Card

Jul 2011

Release Date

Dec 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

153.6GB/s

Render Config

14

Compute Units

20

-

1120

Shading Units

1280

56

TMUs

80

32

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

24.00 GPixel/s

50.40 GTexel/s

Texture Rate

60.00 GTexel/s

-

2.016 TFLOPS

FP32 (float)

1.920 TFLOPS

-

FP64 (double)

480.0 GFLOPS

Board Design

300W

TDP

186W

700 W

Suggested PSU

450 W

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

Outputs

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

-

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

Cayman

Barts XT (215-0798000)

GPU Variant

Cayman CE (215-0807105)

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

2.64 billion

255 mm²

Die Size

389 mm²

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

-

5.0

Shader Model

5.0

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