AMD Radeon HD 6850 X2 vs AMD Radeon HD 8950 OEM

VS

AMD Radeon HD 6850 X2

AMD Radeon HD 8950 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 3GB VRAM Radeon HD 8950 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8950 OEM 's Advantages

Released 1 years and 4 months late

Boost Clock925MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 134.4GB/s)

832 additional rendering cores

Lower TDP (200W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

Radeon HD 8950 OEM +115%

3.315 TFLOPS

Radeon HD 6850 X2

VS

Radeon HD 8950 OEM

Graphics Card

Sep 2011

Release Date

Jan 2013

Northern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

925 MHz

1050 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

240.0GB/s

Render Config

12

Compute Units

28

-

960

Shading Units

1792

48

TMUs

112

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

29.60 GPixel/s

38.40 GTexel/s

Texture Rate

103.6 GTexel/s

-

1.536 TFLOPS

FP32 (float)

3.315 TFLOPS

-

FP64 (double)

828.8 GFLOPS

Board Design

254W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

Tahiti

Barts PRO (215-0798006)

GPU Variant

Tahiti PRO (215-0821056)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

4.313 billion

255 mm²

Die Size

352 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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