AMD Radeon HD 6950 vs AMD Radeon R9 285

VS

AMD Radeon HD 6950

AMD Radeon R9 285

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 2GB VRAM Radeon R9 285 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285 's Advantages

Released 3 years and 9 months late

Larger VRAM bandwidth (176.0GB/s vs 160.0GB/s)

384 additional rendering cores

Lower TDP (190W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 6950

2.253 TFLOPS

Radeon R9 285 +46%

3.29 TFLOPS

Radeon HD 6950

VS

Radeon R9 285

Graphics Card

Dec 2010

Release Date

Sep 2014

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

176.0GB/s

Render Config

22

Compute Units

28

-

1408

Shading Units

1792

88

TMUs

112

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

29.38 GPixel/s

70.40 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

2.253 TFLOPS

FP32 (float)

3.290 TFLOPS

563.2 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

200W

TDP

190W

550 W

Suggested PSU

450 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cayman

GPU Name

Tonga

Cayman PRO (215-0807019)

GPU Variant

Tonga PRO (215-0851128)

TeraScale 3

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

5 billion

389 mm²

Die Size

366 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5

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