AMD Radeon R9 270X vs AMD Radeon HD 6850 1440SP Edition

VS

AMD Radeon R9 270X

AMD Radeon HD 6850 1440SP Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 1024MB VRAM Radeon HD 6850 1440SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Released 1 years and 2 months late

Boost Clock1050MHz

More VRAM (2GB vs 1024GB)

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

AMD Radeon HD 6850 1440SP Edition 's Advantages

160 additional rendering cores

Lower TDP (151W vs 180W)

Score

Benchmark

FP32 (float)

Radeon R9 270X +28%

2.688 TFLOPS

Radeon HD 6850 1440SP Edition

2.088 TFLOPS

Radeon R9 270X

VS

Radeon HD 6850 1440SP Edition

Graphics Card

Oct 2013

Release Date

Aug 2012

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

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

18

-

1280

Shading Units

1440

80

TMUs

72

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

23.20 GPixel/s

84.00 GTexel/s

Texture Rate

52.20 GTexel/s

-

2.688 TFLOPS

FP32 (float)

2.088 TFLOPS

168.0 GFLOPS

FP64 (double)

417.6 GFLOPS

Board Design

180W

TDP

151W

450 W

Suggested PSU

450 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Curacao

GPU Name

Cypress

Curacao XT (215-0848004)

GPU Variant

Cypress PRO (215-0735043)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

2.154 billion

212 mm²

Die Size

334 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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