AMD Radeon HD 8970 OEM vs AMD Radeon HD 6950

VS

AMD Radeon HD 8970 OEM

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8970 OEM and 2GB VRAM Radeon HD 6950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970 OEM 's Advantages

Released 2 years and 1 months late

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 160.0GB/s)

640 additional rendering cores

AMD Radeon HD 6950 's Advantages

Lower TDP (200W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 8970 OEM +68%

3.789 TFLOPS

Radeon HD 6950

2.253 TFLOPS

Radeon HD 8970 OEM

VS

Radeon HD 6950

Graphics Card

Jan 2013

Release Date

Dec 2010

Sea Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1250 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

160.0GB/s

Render Config

32

Compute Units

22

-

2048

Shading Units

1408

128

TMUs

88

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

25.60 GPixel/s

118.4 GTexel/s

Texture Rate

70.40 GTexel/s

-

3.789 TFLOPS

FP32 (float)

2.253 TFLOPS

947.2 GFLOPS

FP64 (double)

563.2 GFLOPS

Board Design

250W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

Cayman

Tahiti XT (215-0821060)

GPU Variant

Cayman PRO (215-0807019)

GCN 1.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

2.64 billion

352 mm²

Die Size

389 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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