ATI Radeon HD 4870 X2 vs ATI FireMV 2260 PCIe x1

VS

ATI Radeon HD 4870 X2

ATI FireMV 2260 PCIe x1

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 256MB VRAM FireMV 2260 PCIe x1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Released 7 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 8.000GB/s)

760 additional rendering cores

ATI FireMV 2260 PCIe x1 's Advantages

Lower TDP (15W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +2900%

1.2 TFLOPS

FireMV 2260 PCIe x1

0.04 TFLOPS

Radeon HD 4870 X2

VS

FireMV 2260 PCIe x1

Graphics Card

Aug 2008

Release Date

Jan 2008

Radeon R700

Generation

FireMV Multi-View

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

900 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

8.000GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

2.000 GPixel/s

30.00 GTexel/s

Texture Rate

2.000 GTexel/s

-

1200 GFLOPS

FP32 (float)

40.00 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

286W

TDP

15W

600 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

2x DisplayPort

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R700

GPU Name

RV620

R700 XT (215-0669045)

GPU Variant

-

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.181 billion

256 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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