AMD Radeon R9 270X vs AMD Radeon HD 6950

VS

AMD Radeon R9 270X

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X 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 R9 270X 's Advantages

Released 2 years and 10 months late

Boost Clock1050MHz

Larger VRAM bandwidth (179.2GB/s vs 160.0GB/s)

Lower TDP (180W vs 200W)

AMD Radeon HD 6950 's Advantages

128 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 270X +19%

2.688 TFLOPS

Radeon HD 6950

2.253 TFLOPS

Radeon R9 270X

VS

Radeon HD 6950

Graphics Card

Oct 2013

Release Date

Dec 2010

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

160.0GB/s

Render Config

20

Compute Units

22

-

1280

Shading Units

1408

80

TMUs

88

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

25.60 GPixel/s

84.00 GTexel/s

Texture Rate

70.40 GTexel/s

-

2.688 TFLOPS

FP32 (float)

2.253 TFLOPS

168.0 GFLOPS

FP64 (double)

563.2 GFLOPS

Board Design

180W

TDP

200W

450 W

Suggested PSU

550 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Curacao

GPU Name

Cayman

Curacao XT (215-0848004)

GPU Variant

Cayman PRO (215-0807019)

GCN 1.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

2.64 billion

212 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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