ATI Radeon HD 5950 vs NVIDIA GeForce GTX 660 Rev. 2

VS

ATI Radeon HD 5950

NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5950 and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5950 's Advantages

480 additional rendering cores

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 128.0GB/s)

Lower TDP (140W vs 302W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5950 +5%

2.088 TFLOPS

GeForce GTX 660 Rev. 2

1.981 TFLOPS

ATI Radeon HD 5950

VS

GeForce GTX 660 Rev. 2

Graphics Card

Unknown

Release Date

Sep 2014

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

1000 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

128.0GB/s

Bandwidth

144.2GB/s

Render Config

18

Compute Units

-

1440

Shading Units

960

72

TMUs

80

32

ROPs

24

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

20.64 GPixel/s

52.20 GTexel/s

Texture Rate

82.56 GTexel/s

-

2.088 TFLOPS

FP32 (float)

1.981 TFLOPS

-

FP64 (double)

82.56 GFLOPS

Board Design

302W

TDP

140W

700 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Hemlock

GPU Name

GK104

Hemlock PRO

GPU Variant

-

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

3.54 billion

334 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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