AMD Radeon HD 7850 vs ATI Radeon HD 5490

VS

AMD Radeon HD 7850

ATI Radeon HD 5490

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 1024MB VRAM Radeon HD 5490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 8.000GB/s)

944 additional rendering cores

ATI Radeon HD 5490 's Advantages

Released 7 months late

Lower TDP (19W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850 +1593%

1.761 TFLOPS

Radeon HD 5490

0.104 TFLOPS

Radeon HD 7850

VS

Radeon HD 5490

Graphics Card

Mar 2012

Release Date

Oct 2012

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

8.000GB/s

Render Config

16

Compute Units

2

-

1024

Shading Units

80

64

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

27.52 GPixel/s

Pixel Rate

2.600 GPixel/s

55.04 GTexel/s

Texture Rate

5.200 GTexel/s

-

1.761 TFLOPS

FP32 (float)

104.0 GFLOPS

110.1 GFLOPS

FP64 (double)

-

Board Design

130W

TDP

19W

300 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Cedar

Pitcairn PRO (215-0828062)

GPU Variant

Cedar XTX

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.292 billion

212 mm²

Die Size

59 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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