NVIDIA GeForce GTX 660 Ti vs AMD Radeon HD 7950 Monica BIOS 2

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon HD 7950 Monica BIOS 2

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 3GB VRAM Radeon HD 7950 Monica BIOS 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Released 7 months late

Boost Clock980MHz

576 additional rendering cores

AMD Radeon HD 7950 Monica BIOS 2 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 144.2GB/s)

Lower TDP (85W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +114%

2.634 TFLOPS

Radeon HD 7950 Monica BIOS 2

1.229 TFLOPS

GeForce GTX 660 Ti

VS

Radeon HD 7950 Monica BIOS 2

Graphics Card

Aug 2012

Release Date

Jan 2012

GeForce 600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

384bit

144.2GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

12

-

1344

Shading Units

768

112

TMUs

48

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

768 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

25.60 GPixel/s

109.8 GTexel/s

Texture Rate

38.40 GTexel/s

-

2.634 TFLOPS

FP32 (float)

1229 GFLOPS

109.8 GFLOPS

FP64 (double)

307.2 GFLOPS

Board Design

150W

TDP

85W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK104

GPU Name

Tahiti

GK104-300-KD-A2

GPU Variant

Tahiti PRO (215-0821056)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

4.313 billion

294 mm²

Die Size

352 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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