AMD Radeon HD 6870 vs AMD Radeon HD 8450 OEM

VS

AMD Radeon HD 6870

AMD Radeon HD 8450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 1024MB VRAM Radeon HD 8450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 10.67GB/s)

960 additional rendering cores

AMD Radeon HD 8450 OEM 's Advantages

Released 2 years and 3 months late

Lower TDP (18W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +908%

2.016 TFLOPS

Radeon HD 8450 OEM

0.2 TFLOPS

Radeon HD 6870

VS

Radeon HD 8450 OEM

Graphics Card

Oct 2010

Release Date

Jan 2013

Northern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

667 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

10.67GB/s

Render Config

14

Compute Units

2

-

1120

Shading Units

160

56

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.500 GPixel/s

50.40 GTexel/s

Texture Rate

5.000 GTexel/s

-

2.016 TFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

151W

TDP

18W

450 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

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

Caicos

Barts XT (215-0798000)

GPU Variant

Caicos PRO-L

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

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

-

5.0

Shader Model

5.0

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