NVIDIA GeForce 8800 GS vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce 8800 GS

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 384MB VRAM GeForce 8800 GS and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Released 5 years and 4 months late

More VRAM (1024GB vs 384GB)

Larger VRAM bandwidth (40.06GB/s vs 38.40GB/s)

288 additional rendering cores

Lower TDP (49W vs 105W)

Score

Benchmark

FP32 (float)

GeForce 8800 GS

0.264 TFLOPS

GeForce GT 640 Rev. 2 +204%

0.803 TFLOPS

GeForce 8800 GS

VS

GeForce GT 640 Rev. 2

Graphics Card

Jan 2008

Release Date

May 2013

GeForce 8

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

800 MHz

Memory Clock

1252 MHz

Memory

384MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

192bit

Memory Bus

64bit

38.40GB/s

Bandwidth

40.06GB/s

Render Config

-

12

SM Count

-

96

Shading Units

384

48

TMUs

32

12

ROPs

8

-

L1 Cache

16 KB (per SMX)

48 KB

L2 Cache

512 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

8.368 GPixel/s

26.40 GTexel/s

Texture Rate

33.47 GTexel/s

-

264.0 GFLOPS

FP32 (float)

803.3 GFLOPS

-

FP64 (double)

33.47 GFLOPS

Board Design

105W

TDP

49W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

G92

GPU Name

GK208

G92-150-A2

GPU Variant

GK208-400-A1

Tesla

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.754 billion

Transistors

1.02 billion

324 mm²

Die Size

87 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

3.5

4.0

Shader Model

5.1

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