ATI Radeon HD 4870 X2 vs AMD Radeon HD 7670 OEM

VS

ATI Radeon HD 4870 X2

AMD Radeon HD 7670 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 512MB VRAM Radeon HD 7670 OEM 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 64.00GB/s)

320 additional rendering cores

AMD Radeon HD 7670 OEM 's Advantages

Released 3 years and 5 months late

Lower TDP (66W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +56%

1.2 TFLOPS

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon HD 4870 X2

VS

Radeon HD 7670 OEM

Graphics Card

Aug 2008

Release Date

Jan 2012

Radeon R700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

64.00GB/s

Render Config

10

Compute Units

6

-

800

Shading Units

480

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

6.400 GPixel/s

30.00 GTexel/s

Texture Rate

19.20 GTexel/s

-

1200 GFLOPS

FP32 (float)

768.0 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

286W

TDP

66W

600 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x DisplayPort 1.1 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R700

GPU Name

Turks

R700 XT (215-0669045)

GPU Variant

Turks XT (215-0803000)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

0.716 billion

256 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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