AMD Radeon HD 7970 GHz Edition vs ATI Radeon HD 4850

VS

AMD Radeon HD 7970 GHz Edition

ATI Radeon HD 4850

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 512MB VRAM Radeon HD 4850 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 4 years late

Boost Clock1050MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 63.55GB/s)

1248 additional rendering cores

ATI Radeon HD 4850 's Advantages

Lower TDP (110W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +330%

4.301 TFLOPS

Radeon HD 4850

1 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon HD 4850

Graphics Card

Jun 2012

Release Date

Jun 2008

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

993 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

63.55GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

800

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

10.00 GPixel/s

134.4 GTexel/s

Texture Rate

25.00 GTexel/s

-

4.301 TFLOPS

FP32 (float)

1000 GFLOPS

1075 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

300W

TDP

110W

700 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

RV770

Tahiti XT2 (215-0821065)

GPU Variant

RV770 PRO (215-0669065)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.956 billion

352 mm²

Die Size

256 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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