NVIDIA GeForce 8800 GS vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce 8800 GS

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 384MB VRAM GeForce 8800 GS and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 GS 's Advantages

Larger VRAM bandwidth (38.40GB/s vs 28.51GB/s)

NVIDIA GeForce GT 640 's Advantages

Released 4 years and 5 months late

More VRAM (2GB vs 384GB)

288 additional rendering cores

Lower TDP (65W vs 105W)

Score

Benchmark

FP32 (float)

GeForce 8800 GS

0.264 TFLOPS

GeForce GT 640 +162%

0.693 TFLOPS

GeForce 8800 GS

VS

GeForce GT 640

Graphics Card

Jan 2008

Release Date

Jun 2012

GeForce 8

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

891 MHz

Memory

384MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

192bit

Memory Bus

128bit

38.40GB/s

Bandwidth

28.51GB/s

Render Config

-

12

SM Count

-

96

Shading Units

384

48

TMUs

32

12

ROPs

16

-

L1 Cache

16 KB (per SMX)

48 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

7.216 GPixel/s

26.40 GTexel/s

Texture Rate

28.86 GTexel/s

-

264.0 GFLOPS

FP32 (float)

692.7 GFLOPS

-

FP64 (double)

28.86 GFLOPS

Board Design

105W

TDP

65W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Processor

G92

GPU Name

GK107

G92-150-A2

GPU Variant

GK107-300-A2

Tesla

Architecture

Kepler

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.754 billion

Transistors

1.27 billion

324 mm²

Die Size

118 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

CUDA

3.0

4.0

Shader Model

5.1

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