AMD Radeon R9 270X vs AMD Radeon HD 8740 OEM

VS

AMD Radeon R9 270X

AMD Radeon HD 8740 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 1024MB VRAM Radeon HD 8740 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Boost Clock1050MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 72.00GB/s)

768 additional rendering cores

AMD Radeon HD 8740 OEM 's Advantages

Lower TDP (55W vs 180W)

Score

Benchmark

FP32 (float)

Radeon R9 270X +228%

2.688 TFLOPS

Radeon HD 8740 OEM

0.819 TFLOPS

Radeon R9 270X

VS

Radeon HD 8740 OEM

Graphics Card

Oct 2013

Release Date

Sep 2013

Volcanic Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

179.2GB/s

Bandwidth

72.00GB/s

Render Config

20

Compute Units

8

-

1280

Shading Units

512

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

12.80 GPixel/s

84.00 GTexel/s

Texture Rate

25.60 GTexel/s

-

2.688 TFLOPS

FP32 (float)

819.2 GFLOPS

168.0 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

180W

TDP

55W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

Cape Verde

Curacao XT (215-0848004)

GPU Variant

Cape Verde PRO

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.5 billion

212 mm²

Die Size

123 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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