AMD Radeon HD 6450 OEM vs AMD Radeon HD 7850

VS

AMD Radeon HD 6450 OEM

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 130W)

AMD Radeon HD 7850 's Advantages

Released 1 years and 1 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 8.528GB/s)

864 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon HD 7850 +780%

1.761 TFLOPS

Radeon HD 6450 OEM

VS

Radeon HD 7850

Graphics Card

Feb 2011

Release Date

Mar 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

533 MHz

Memory Clock

1200 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.528GB/s

Bandwidth

153.6GB/s

Render Config

2

Compute Units

16

-

160

Shading Units

1024

8

TMUs

64

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

27.52 GPixel/s

5.000 GTexel/s

Texture Rate

55.04 GTexel/s

-

200.0 GFLOPS

FP32 (float)

1.761 TFLOPS

-

FP64 (double)

110.1 GFLOPS

Board Design

18W

TDP

130W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Caicos

GPU Name

Pitcairn

Junbonator

GPU Variant

Pitcairn PRO (215-0828062)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.8 billion

67 mm²

Die Size

212 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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