AMD Radeon HD 8490 OEM vs AMD Radeon R5 340X OEM

VS

AMD Radeon HD 8490 OEM

AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM 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 HD 8490 OEM 's Advantages

Lower TDP (35W vs 65W)

AMD Radeon R5 340X OEM 's Advantages

Released 1 years and 10 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (16.00GB/s vs 14.40GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon R5 340X OEM +146%

0.691 TFLOPS

Radeon HD 8490 OEM

VS

Radeon R5 340X OEM

Graphics Card

Jul 2013

Release Date

May 2015

Sea Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

16.00GB/s

Render Config

2

Compute Units

6

-

160

Shading Units

384

8

TMUs

24

4

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

3.500 GPixel/s

Pixel Rate

7.200 GPixel/s

7.000 GTexel/s

Texture Rate

21.60 GTexel/s

-

280.0 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Board Design

35W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x DisplayPort 1.1

Outputs

1x DVI 1x DisplayPort 1.2

None

Power Connectors

None

Graphics Processor

Caicos

GPU Name

Oland

Caicos XTX

GPU Variant

Oland XT (215-0837000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

0.95 billion

67 mm²

Die Size

77 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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