AMD Radeon HD 6970 vs ATI Radeon HD 4450

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 and 512MB VRAM Radeon HD 4450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 's Advantages

Larger VRAM bandwidth (176.0GB/s vs 6.400GB/s)

1456 additional rendering cores

ATI Radeon HD 4450 's Advantages

Released 11 months late

Lower TDP (25W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 +2715%

2.703 TFLOPS

Radeon HD 4450

0.096 TFLOPS

Radeon HD 6970

VS

Radeon HD 4450

Graphics Card

Dec 2010

Release Date

Nov 2011

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

176.0GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

-

24

Compute Units

1

1536

Shading Units

80

96

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

64 KB

Theoretical Performance

28.16 GPixel/s

Pixel Rate

2.400 GPixel/s

84.48 GTexel/s

Texture Rate

4.800 GTexel/s

-

FP16 (half)

-

2.703 TFLOPS

FP32 (float)

96.00 GFLOPS

675.8 GFLOPS

FP64 (double)

-

Graphics Processor

Cayman

GPU Name

RV710

Cayman XT (215-0807007)

GPU Variant

RV710 (215-0725016)

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.242 billion

389 mm²

Die Size

73 mm²

Board Design

250W

TDP

25W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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