AMD Radeon HD 7970 X2 vs ATI Radeon HD 4450

VS

AMD Radeon HD 7970 X2 ATI Radeon HD 4450

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 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 7970 X2 's Advantages

Released 9 months late

Larger VRAM bandwidth (264.0GB/s vs 6.400GB/s)

1968 additional rendering cores

ATI Radeon HD 4450 's Advantages

Lower TDP (25W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +3846%

3.789 TFLOPS

Radeon HD 4450

0.096 TFLOPS

Radeon HD 7970 X2

VS

Radeon HD 4450

Graphics Card

Aug 2012

Release Date

Nov 2011

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

400 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

-

32

Compute Units

1

2048

Shading Units

80

128

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

64 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.400 GPixel/s

118.4 GTexel/s

Texture Rate

4.800 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

96.00 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Graphics Processor

New Zealand

GPU Name

RV710

-

GPU Variant

RV710 (215-0725016)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.242 billion

352 mm²

Die Size

73 mm²

Board Design

500W

TDP

25W

900 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

3x 8-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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