AMD Radeon HD 7950 vs ATI Radeon HD 4700

VS

AMD Radeon HD 7950

ATI Radeon HD 4700

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 512MB VRAM Radeon HD 4700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

Released 1 years and 11 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 12.80GB/s)

1472 additional rendering cores

ATI Radeon HD 4700 's Advantages

Lower TDP (50W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 +646%

2.867 TFLOPS

Radeon HD 4700

0.384 TFLOPS

Radeon HD 7950

VS

Radeon HD 4700

Graphics Card

Jan 2012

Release Date

Feb 2010

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

12.80GB/s

Render Config

28

Compute Units

4

-

1792

Shading Units

320

112

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

4.800 GPixel/s

89.60 GTexel/s

Texture Rate

19.20 GTexel/s

-

2.867 TFLOPS

FP32 (float)

384.0 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

50W

550 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

RV730

Tahiti PRO (215-0821056)

GPU Variant

RV730 CE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.514 billion

352 mm²

Die Size

146 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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