AMD Radeon HD 6850 vs AMD Radeon HD 6450 OEM

VS

AMD Radeon HD 6850 AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 512MB VRAM Radeon HD 6450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 8.528GB/s)

800 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +644%

1.488 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon HD 6850

VS

Radeon HD 6450 OEM

Graphics Card

Oct 2010

Release Date

Feb 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

533 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

128.0GB/s

Bandwidth

8.528GB/s

Render Config

-

SM Count

-

12

Compute Units

2

960

Shading Units

160

48

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

24.80 GPixel/s

Pixel Rate

2.500 GPixel/s

37.20 GTexel/s

Texture Rate

5.000 GTexel/s

-

FP16 (half)

-

1488 GFLOPS

FP32 (float)

200.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

Caicos

Barts PRO (215-0798006)

GPU Variant

Junbonator

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.37 billion

255 mm²

Die Size

67 mm²

Board Design

127W

TDP

18W

300 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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