AMD Radeon R9 295X2 vs AMD Radeon HD 8490 OEM

VS

AMD Radeon R9 295X2

AMD Radeon HD 8490 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 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 295X2 's Advantages

Released 9 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (320.0GB/s vs 14.40GB/s)

2656 additional rendering cores

AMD Radeon HD 8490 OEM 's Advantages

Lower TDP (35W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +1947%

5.733 TFLOPS

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon R9 295X2

VS

Radeon HD 8490 OEM

Graphics Card

Apr 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

-

1250 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

512bit

Memory Bus

64bit

320.0GB/s

Bandwidth

14.40GB/s

Render Config

44

Compute Units

2

-

2816

Shading Units

160

176

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

65.15 GPixel/s

Pixel Rate

3.500 GPixel/s

179.2 GTexel/s

Texture Rate

7.000 GTexel/s

-

5.733 TFLOPS

FP32 (float)

280.0 GFLOPS

716.7 GFLOPS

FP64 (double)

-

Board Design

500W

TDP

35W

900 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x DisplayPort 1.1

2x 8-pin

Power Connectors

None

Graphics Processor

Vesuvius

GPU Name

Caicos

Vesuvius XT (215-0852022)

GPU Variant

Caicos XTX

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

6.2 billion

Transistors

0.37 billion

438 mm²

Die Size

67 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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