NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce 8800 GTS 320

VS

NVIDIA GeForce GTX 660 Rev. 2 NVIDIA GeForce 8800 GTS 320

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 320MB VRAM GeForce 8800 GTS 320 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 7 years and 7 months late

Boost Clock1032MHz

Larger VRAM bandwidth (144.2GB/s vs 63.36GB/s)

864 additional rendering cores

Lower TDP (140W vs 143W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2 +768%

1.981 TFLOPS

GeForce 8800 GTS 320

0.228 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce 8800 GTS 320

Graphics Card

Sep 2014

Release Date

Feb 2007

GeForce 600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

792 MHz

Memory

2GB

Memory Size

320MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

320bit

144.2GB/s

Bandwidth

63.36GB/s

Render Config

-

SM Count

12

-

Compute Units

-

960

Shading Units

96

80

TMUs

24

ROPs

20

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

80 KB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

10.26 GPixel/s

82.56 GTexel/s

Texture Rate

24.62 GTexel/s

-

FP16 (half)

-

1.981 TFLOPS

FP32 (float)

228.1 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Graphics Processor

GK104

GPU Name

G80

-

GPU Variant

G80-100-K0-A2

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

3.54 billion

Transistors

0.681 billion

294 mm²

Die Size

484 mm²

Board Design

140W

TDP

143W

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

1x 6-pin

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1 (1.0)

1.1

Vulkan

N/A

3.0

CUDA

1.0

5.1

Shader Model

4.0

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