AMD Radeon HD 6850 vs AMD Radeon HD 8970 OEM

VS

AMD Radeon HD 6850

AMD Radeon HD 8970 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 3GB VRAM Radeon HD 8970 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 250W)

AMD Radeon HD 8970 OEM 's Advantages

Released 2 years and 3 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 128.0GB/s)

1088 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850

1.488 TFLOPS

Radeon HD 8970 OEM +154%

3.789 TFLOPS

Radeon HD 6850

VS

Radeon HD 8970 OEM

Graphics Card

Oct 2010

Release Date

Jan 2013

Northern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1375 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

128.0GB/s

Bandwidth

264.0GB/s

Render Config

12

Compute Units

32

-

960

Shading Units

2048

48

TMUs

128

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

29.60 GPixel/s

37.20 GTexel/s

Texture Rate

118.4 GTexel/s

-

1488 GFLOPS

FP32 (float)

3.789 TFLOPS

-

FP64 (double)

947.2 GFLOPS

Board Design

127W

TDP

250W

300 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

Tahiti

Barts PRO (215-0798006)

GPU Variant

Tahiti XT (215-0821060)

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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