AMD Radeon HD 6870 vs AMD Radeon HD 8950 OEM

VS

AMD Radeon HD 6870

AMD Radeon HD 8950 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 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 6870 's Advantages

Lower TDP (151W vs 200W)

AMD Radeon HD 8950 OEM 's Advantages

Released 2 years and 3 months late

Boost Clock925MHz

More VRAM (3GB vs 1024GB)

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

672 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870

2.016 TFLOPS

Radeon HD 8950 OEM +64%

3.315 TFLOPS

Radeon HD 6870

VS

Radeon HD 8950 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

-

Base Clock

850 MHz

-

Boost Clock

925 MHz

1050 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

240.0GB/s

Render Config

14

Compute Units

28

-

1120

Shading Units

1792

56

TMUs

112

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

29.60 GPixel/s

50.40 GTexel/s

Texture Rate

103.6 GTexel/s

-

2.016 TFLOPS

FP32 (float)

3.315 TFLOPS

-

FP64 (double)

828.8 GFLOPS

Board Design

151W

TDP

200W

450 W

Suggested PSU

550 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

Tahiti

Barts XT (215-0798000)

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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