AMD Radeon R9 280 vs AMD Radeon HD 8490 OEM

VS

AMD Radeon R9 280

AMD Radeon HD 8490 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 1024MB VRAM Radeon HD 8490 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280 's Advantages

Released 8 months late

Boost Clock933MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 14.40GB/s)

1632 additional rendering cores

AMD Radeon HD 8490 OEM 's Advantages

Lower TDP (35W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 280 +1094%

3.344 TFLOPS

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon R9 280

VS

Radeon HD 8490 OEM

Graphics Card

Mar 2014

Release Date

Jul 2013

Volcanic Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

827 MHz

Base Clock

-

933 MHz

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

14.40GB/s

Render Config

28

Compute Units

2

-

1792

Shading Units

160

112

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

29.86 GPixel/s

Pixel Rate

3.500 GPixel/s

104.5 GTexel/s

Texture Rate

7.000 GTexel/s

-

3.344 TFLOPS

FP32 (float)

280.0 GFLOPS

836.0 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

35W

550 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Caicos

Tahiti PRO3 (215-0821330)

GPU Variant

Caicos XTX

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.37 billion

352 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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