AMD Radeon HD 7970 X2 vs ATI Radeon HD 5950

VS

AMD Radeon HD 7970 X2

ATI Radeon HD 5950

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 1024MB VRAM ATI Radeon HD 5950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 128.0GB/s)

608 additional rendering cores

ATI Radeon HD 5950 's Advantages

Lower TDP (302W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +81%

3.789 TFLOPS

ATI Radeon HD 5950

2.088 TFLOPS

Radeon HD 7970 X2

VS

ATI Radeon HD 5950

Graphics Card

Aug 2012

Release Date

Unknown

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

128.0GB/s

Render Config

32

Compute Units

18

-

2048

Shading Units

1440

128

TMUs

72

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

23.20 GPixel/s

118.4 GTexel/s

Texture Rate

52.20 GTexel/s

-

3.789 TFLOPS

FP32 (float)

2.088 TFLOPS

947.2 GFLOPS

FP64 (double)

-

Board Design

500W

TDP

302W

900 W

Suggested PSU

700 W

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

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

3x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

New Zealand

GPU Name

Hemlock

-

GPU Variant

Hemlock PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

2.154 billion

352 mm²

Die Size

334 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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