ATI Radeon HD 4670 X2 vs AMD Radeon HD 7870 GHz Edition

VS

ATI Radeon HD 4670 X2

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 X2 's Advantages

Lower TDP (118W vs 175W)

AMD Radeon HD 7870 GHz Edition 's Advantages

Released 3 years and 6 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 22.40GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2

0.48 TFLOPS

Radeon HD 7870 GHz Edition +433%

2.56 TFLOPS

Radeon HD 4670 X2

VS

Radeon HD 7870 GHz Edition

Graphics Card

Sep 2008

Release Date

Mar 2012

Radeon R700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

700 MHz

Memory Clock

1200 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

22.40GB/s

Bandwidth

153.6GB/s

Render Config

4

Compute Units

20

-

320

Shading Units

1280

32

TMUs

80

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

32.00 GPixel/s

24.00 GTexel/s

Texture Rate

80.00 GTexel/s

-

480.0 GFLOPS

FP32 (float)

2.560 TFLOPS

-

FP64 (double)

160.0 GFLOPS

Board Design

118W

TDP

175W

300 W

Suggested PSU

450 W

4x DVI

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV730

GPU Name

Pitcairn

RV730 XT (215-0719047)

GPU Variant

Pitcairn XT (215-0828047)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

2.8 billion

146 mm²

Die Size

212 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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