AMD Radeon HD 6850 vs AMD Radeon R9 270 1024SP

VS

AMD Radeon HD 6850

AMD Radeon R9 270 1024SP

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

Main Differences

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 150W)

AMD Radeon R9 270 1024SP 's Advantages

Released 4 years and 5 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 128.0GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850

1.488 TFLOPS

Radeon R9 270 1024SP +27%

1.894 TFLOPS

Radeon HD 6850

VS

Radeon R9 270 1024SP

Graphics Card

Oct 2010

Release Date

Mar 2015

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1000 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

153.6GB/s

Render Config

12

Compute Units

16

-

960

Shading Units

1024

48

TMUs

64

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

29.60 GPixel/s

37.20 GTexel/s

Texture Rate

59.20 GTexel/s

-

1488 GFLOPS

FP32 (float)

1.894 TFLOPS

-

FP64 (double)

118.4 GFLOPS

Board Design

127W

TDP

150W

300 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

Pitcairn

Barts PRO (215-0798006)

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.8 billion

255 mm²

Die Size

212 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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