AMD Radeon R9 270 1024SP vs AMD Radeon R5 340X OEM

VS

AMD Radeon R9 270 1024SP

AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 2GB VRAM Radeon R5 340X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 1024SP 's Advantages

Boost Clock925MHz

Larger VRAM bandwidth (153.6GB/s vs 16.00GB/s)

640 additional rendering cores

AMD Radeon R5 340X OEM 's Advantages

Lower TDP (65W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +174%

1.894 TFLOPS

Radeon R5 340X OEM

0.691 TFLOPS

Radeon R9 270 1024SP

VS

Radeon R5 340X OEM

Graphics Card

Mar 2015

Release Date

May 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1200 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

16.00GB/s

Render Config

16

Compute Units

6

-

1024

Shading Units

384

64

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

7.200 GPixel/s

59.20 GTexel/s

Texture Rate

21.60 GTexel/s

-

1.894 TFLOPS

FP32 (float)

691.2 GFLOPS

118.4 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

150W

TDP

65W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.2

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Oland

Pitcairn PRO (215-0828062)

GPU Variant

Oland XT (215-0837000)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

0.95 billion

212 mm²

Die Size

77 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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