ATI Radeon HD 5970 vs AMD Radeon HD 6450 OEM

VS

ATI Radeon HD 5970

AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 512MB VRAM Radeon HD 6450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5970 's Advantages

More VRAM (1024GB vs 512GB)

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

1440 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Released 1 years and 3 months late

Lower TDP (18W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970 +1060%

2.32 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 6450 OEM

Graphics Card

Nov 2009

Release Date

Feb 2011

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

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

20

Compute Units

2

-

1600

Shading Units

160

80

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

2.500 GPixel/s

58.00 GTexel/s

Texture Rate

5.000 GTexel/s

-

2.320 TFLOPS

FP32 (float)

200.0 GFLOPS

464.0 GFLOPS

FP64 (double)

-

Board Design

294W

TDP

18W

600 W

Suggested PSU

200 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Hemlock

GPU Name

Caicos

Hemlock XT (215-0735075)

GPU Variant

Junbonator

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

0.37 billion

334 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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