NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GT 320 OEM

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GT 320 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM GeForce GT 320 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 2 years and 2 months late

Larger VRAM bandwidth (91.87GB/s vs 25.28GB/s)

216 additional rendering cores

NVIDIA GeForce GT 320 OEM 's Advantages

Lower TDP (43W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +375%

0.894 TFLOPS

GeForce GT 320 OEM

0.188 TFLOPS

GeForce GT 645 OEM

VS

GeForce GT 320 OEM

Graphics Card

Apr 2012

Release Date

Feb 2010

GeForce 600

Generation

GeForce 300

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

790 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

25.28GB/s

Render Config

-

6

SM Count

9

288

Shading Units

72

48

TMUs

24

ROPs

8

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

64 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

4.320 GPixel/s

37.25 GTexel/s

Texture Rate

12.96 GTexel/s

-

894.0 GFLOPS

FP32 (float)

187.5 GFLOPS

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

43W

300 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1x VGA

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

GT215

-

GPU Variant

GT215-250-A2

Fermi 2.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

0.727 billion

332 mm²

Die Size

144 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

1.2

5.1

Shader Model

4.1

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