NVIDIA GeForce GTX 660 OEM vs AMD Radeon HD 7750

VS

NVIDIA GeForce GTX 660 OEM

AMD Radeon HD 7750

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 1024MB VRAM Radeon HD 7750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

Released 6 months late

Boost Clock888MHz

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (134.4GB/s vs 72.00GB/s)

640 additional rendering cores

AMD Radeon HD 7750 's Advantages

Lower TDP (55W vs 130W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM +149%

2.046 TFLOPS

Radeon HD 7750

0.819 TFLOPS

GeForce GTX 660 OEM

VS

Radeon HD 7750

Graphics Card

Aug 2012

Release Date

Feb 2012

GeForce 600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

823 MHz

Base Clock

-

888 MHz

Boost Clock

-

1400 MHz

Memory Clock

1125 MHz

Memory

1536MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

134.4GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

8

-

1152

Shading Units

512

96

TMUs

32

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

12.80 GPixel/s

85.25 GTexel/s

Texture Rate

25.60 GTexel/s

-

2.046 TFLOPS

FP32 (float)

819.2 GFLOPS

85.25 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

130W

TDP

55W

300 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Cape Verde

GK104-200-KD-A2

GPU Variant

Cape Verde PRO

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.5 billion

294 mm²

Die Size

123 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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