AMD Radeon R9 270 vs AMD Radeon HD 6850

VS

AMD Radeon R9 270

AMD Radeon HD 6850

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 's Advantages

Released 3 years and 1 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 128.0GB/s)

320 additional rendering cores

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 +59%

2.368 TFLOPS

Radeon HD 6850

1.488 TFLOPS

Radeon R9 270

VS

Radeon HD 6850

Graphics Card

Nov 2013

Release Date

Oct 2010

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

128.0GB/s

Render Config

20

Compute Units

12

-

1280

Shading Units

960

80

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

24.80 GPixel/s

74.00 GTexel/s

Texture Rate

37.20 GTexel/s

-

2.368 TFLOPS

FP32 (float)

1488 GFLOPS

148.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

127W

450 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Curacao

GPU Name

Barts

Curacao PRO (215-0848000)

GPU Variant

Barts PRO (215-0798006)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

1.7 billion

212 mm²

Die Size

255 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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