AMD Radeon R9 270 1024SP vs AMD Radeon HD 6850 X2

VS

AMD Radeon R9 270 1024SP AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 1024SP 's Advantages

Released 3 years and 6 months late

Boost Clock925MHz

Larger VRAM bandwidth (153.6GB/s vs 134.4GB/s)

64 additional rendering cores

Lower TDP (150W vs 254W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +23%

1.894 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon R9 270 1024SP

VS

Radeon HD 6850 X2

Graphics Card

Mar 2015

Release Date

Sep 2011

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

-

1200 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

16

Compute Units

12

1024

Shading Units

960

64

TMUs

48

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

25.60 GPixel/s

59.20 GTexel/s

Texture Rate

38.40 GTexel/s

-

FP16 (half)

-

1.894 TFLOPS

FP32 (float)

1.536 TFLOPS

118.4 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

Barts

Pitcairn PRO (215-0828062)

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

Board Design

150W

TDP

254W

450 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 8-pin

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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