NVIDIA GeForce GTX 660 OEM vs NVIDIA GeForce 7800 GTX 512

VS

NVIDIA GeForce GTX 660 OEM

NVIDIA GeForce 7800 GTX 512

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 512MB VRAM GeForce 7800 GTX 512 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 years and 9 months late

Boost Clock888MHz

More VRAM (1536GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 51.20GB/s)

1152 additional rendering cores

NVIDIA GeForce 7800 GTX 512 's Advantages

Lower TDP (108W vs 130W)

Score

GeForce GTX 660 OEM

VS

GeForce 7800 GTX 512

Graphics Card

Aug 2012

Release Date

Nov 2005

GeForce 600

Generation

GeForce 7 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

823 MHz

Base Clock

-

888 MHz

Boost Clock

-

1400 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

256bit

134.4GB/s

Bandwidth

51.20GB/s

Render Config

-

1152

Shading Units

-

96

TMUs

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

8.000 GPixel/s

85.25 GTexel/s

Texture Rate

12.00 GTexel/s

-

2.046 TFLOPS

FP32 (float)

-

85.25 GFLOPS

FP64 (double)

-

Board Design

130W

TDP

108W

300 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

-

Graphics Processor

GK104

GPU Name

G70

GK104-200-KD-A2

GPU Variant

GF-7800-GTX-512-A2

Kepler

Architecture

Curie

TSMC

Foundry

TSMC

28 nm

Process Size

110 nm

3.54 billion

Transistors

0.302 billion

294 mm²

Die Size

333 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

3.0

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