AMD Radeon HD 7970 GHz Edition vs ATI Radeon HD 4520

VS

AMD Radeon HD 7970 GHz Edition

ATI Radeon HD 4520

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 512MB VRAM Radeon HD 4520 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Released 2 years and 6 months late

Boost Clock1050MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 6.400GB/s)

1968 additional rendering cores

ATI Radeon HD 4520 's Advantages

Lower TDP (25W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +4380%

4.301 TFLOPS

Radeon HD 4520

0.096 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon HD 4520

Graphics Card

Jun 2012

Release Date

Dec 2009

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

400 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

288.0GB/s

Bandwidth

6.400GB/s

Render Config

32

Compute Units

1

-

2048

Shading Units

80

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

64 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

2.400 GPixel/s

134.4 GTexel/s

Texture Rate

4.800 GTexel/s

-

4.301 TFLOPS

FP32 (float)

96.00 GFLOPS

1075 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

25W

700 W

Suggested PSU

200 W

1x 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 Processor

Tahiti

GPU Name

RV710

Tahiti XT2 (215-0821065)

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

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

-

5.1

Shader Model

4.1

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