ATI Radeon HD 5950 vs ATI Radeon HD 4870 X2

VS

ATI Radeon HD 5950

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5950 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 5950 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 115.2GB/s)

640 additional rendering cores

ATI Radeon HD 4870 X2 's Advantages

Lower TDP (286W vs 302W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5950 +74%

2.088 TFLOPS

Radeon HD 4870 X2

1.2 TFLOPS

ATI Radeon HD 5950

VS

Radeon HD 4870 X2

Graphics Card

Unknown

Release Date

Aug 2008

Evergreen

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

115.2GB/s

Render Config

18

Compute Units

10

-

1440

Shading Units

800

72

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

12.00 GPixel/s

52.20 GTexel/s

Texture Rate

30.00 GTexel/s

-

2.088 TFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

302W

TDP

286W

700 W

Suggested PSU

600 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Hemlock

GPU Name

R700

Hemlock PRO

GPU Variant

R700 XT (215-0669045)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.154 billion

Transistors

0.956 billion

334 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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