ATI Radeon HD 4870 X2 vs ATI Radeon HD 4670

VS

ATI Radeon HD 4870 X2 ATI Radeon HD 4670

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 512MB VRAM Radeon HD 4670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 32.00GB/s)

480 additional rendering cores

ATI Radeon HD 4670 's Advantages

Lower TDP (59W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +150%

1.2 TFLOPS

Radeon HD 4670

0.48 TFLOPS

Radeon HD 4870 X2

VS

Radeon HD 4670

Graphics Card

Aug 2008

Release Date

Sep 2008

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

32.00GB/s

Render Config

-

SM Count

-

10

Compute Units

4

800

Shading Units

320

40

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

6.000 GPixel/s

30.00 GTexel/s

Texture Rate

24.00 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

480.0 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Graphics Processor

R700

GPU Name

RV730

R700 XT (215-0669045)

GPU Variant

RV730 XT (215-0719047)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.514 billion

256 mm²

Die Size

146 mm²

Board Design

286W

TDP

59W

600 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

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

-

CUDA

-

4.1

Shader Model

4.1

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