ATI Radeon HD 4670 X2 vs ATI Radeon HD 4870 X2

VS

ATI Radeon HD 4670 X2

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 1024MB VRAM Radeon HD 4870 X2 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 286W)

ATI Radeon HD 4870 X2 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 22.40GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2

0.48 TFLOPS

Radeon HD 4870 X2 +150%

1.2 TFLOPS

Radeon HD 4670 X2

VS

Radeon HD 4870 X2

Graphics Card

Sep 2008

Release Date

Aug 2008

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

700 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

22.40GB/s

Bandwidth

115.2GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

800

32

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

12.00 GPixel/s

24.00 GTexel/s

Texture Rate

30.00 GTexel/s

-

480.0 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

118W

TDP

286W

300 W

Suggested PSU

600 W

4x DVI

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV730

GPU Name

R700

RV730 XT (215-0719047)

GPU Variant

R700 XT (215-0669045)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.514 billion

Transistors

0.956 billion

146 mm²

Die Size

256 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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