ATI Radeon HD 4870 X2 vs AMD Radeon R9 280X2

VS

ATI Radeon HD 4870 X2

AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Lower TDP (286W vs 375W)

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 115.2GB/s)

1248 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2

1.2 TFLOPS

Radeon R9 280X2 +241%

4.096 TFLOPS

Radeon HD 4870 X2

VS

Radeon R9 280X2

Graphics Card

Aug 2008

Release Date

Unknown

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

900 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

115.2GB/s

Bandwidth

288.0GB/s

Render Config

10

Compute Units

32

-

800

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

32.00 GPixel/s

30.00 GTexel/s

Texture Rate

128.0 GTexel/s

-

1200 GFLOPS

FP32 (float)

4.096 TFLOPS

240.0 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

286W

TDP

375W

600 W

Suggested PSU

750 W

2x DVI 1x S-Video

Outputs

6x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

3x 8-pin

Graphics Processor

R700

GPU Name

Tahiti

R700 XT (215-0669045)

GPU Variant

Tahiti XTL (215-0821065)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

4.313 billion

256 mm²

Die Size

352 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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