AMD Radeon HD 8740 OEM vs AMD Radeon R9 280X2

VS

AMD Radeon HD 8740 OEM

AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8740 OEM and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8740 OEM 's Advantages

Lower TDP (55W vs 375W)

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 72.00GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8740 OEM

0.819 TFLOPS

Radeon R9 280X2 +400%

4.096 TFLOPS

Radeon HD 8740 OEM

VS

Radeon R9 280X2

Graphics Card

Sep 2013

Release Date

Unknown

Sea Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

1125 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

72.00GB/s

Bandwidth

288.0GB/s

Render Config

8

Compute Units

32

-

512

Shading Units

2048

32

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

32.00 GPixel/s

25.60 GTexel/s

Texture Rate

128.0 GTexel/s

-

819.2 GFLOPS

FP32 (float)

4.096 TFLOPS

51.20 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

55W

TDP

375W

250 W

Suggested PSU

750 W

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

Outputs

6x mini-DisplayPort 1.2

None

Power Connectors

3x 8-pin

Graphics Processor

Cape Verde

GPU Name

Tahiti

Cape Verde PRO

GPU Variant

Tahiti XTL (215-0821065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

4.313 billion

123 mm²

Die Size

352 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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