NVIDIA CMP 40HX vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA CMP 40HX

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM CMP 40HX 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 CMP 40HX 's Advantages

Released 8 years and 10 months late

Boost Clock1650MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (448.0GB/s vs 91.87GB/s)

2016 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 185W)

Score

Benchmark

FP32 (float)

CMP 40HX +750%

7.603 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

CMP 40HX

VS

GeForce GT 645 OEM

Graphics Card

Feb 2021

Release Date

Apr 2012

Mining GPUs

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1470 MHz

Base Clock

-

1650 MHz

Boost Clock

-

1750 MHz

Memory Clock

957 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

448.0GB/s

Bandwidth

91.87GB/s

Render Config

-

36

SM Count

6

2304

Shading Units

288

144

TMUs

48

64

ROPs

24

288

Tensor Cores

-

36

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

384 KB

-

Theoretical Performance

105.6 GPixel/s

Pixel Rate

9.312 GPixel/s

237.6 GTexel/s

Texture Rate

37.25 GTexel/s

15.21 TFLOPS

FP16 (half)

-

7.603 TFLOPS

FP32 (float)

894.0 GFLOPS

237.6 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

185W

TDP

102W

450 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 8-pin

Power Connectors

-

Graphics Processor

TU106

GPU Name

GF114

TU106-100-A1

GPU Variant

-

Turing

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

40 nm

10.8 billion

Transistors

1.95 billion

445 mm²

Die Size

332 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

7.5

CUDA

2.1

6.6

Shader Model

5.1

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