NVIDIA GeForce 8600 GTS vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce 8600 GTS

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8600 GTS and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8600 GTS 's Advantages

Lower TDP (60W vs 102W)

NVIDIA GeForce GT 645 OEM 's Advantages

Released 5 years late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (91.87GB/s vs 32.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8600 GTS

0.093 TFLOPS

GeForce GT 645 OEM +861%

0.894 TFLOPS

GeForce 8600 GTS

VS

GeForce GT 645 OEM

Graphics Card

Apr 2007

Release Date

Apr 2012

GeForce 8

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

957 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

32.00GB/s

Bandwidth

91.87GB/s

Render Config

-

4

SM Count

6

32

Shading Units

288

16

TMUs

48

8

ROPs

24

-

L1 Cache

64 KB (per SM)

32 KB

L2 Cache

384 KB

-

Theoretical Performance

5.400 GPixel/s

Pixel Rate

9.312 GPixel/s

10.80 GTexel/s

Texture Rate

37.25 GTexel/s

-

92.80 GFLOPS

FP32 (float)

894.0 GFLOPS

-

FP64 (double)

74.50 GFLOPS

Board Design

60W

TDP

102W

250 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

-

Graphics Processor

G84

GPU Name

GF114

G84-400-A2

GPU Variant

-

Tesla

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.289 billion

Transistors

1.95 billion

169 mm²

Die Size

332 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.1

CUDA

2.1

4.0

Shader Model

5.1

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