NVIDIA CMP 40HX vs NVIDIA GeForce GTX 645 OEM

VS

NVIDIA CMP 40HX

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM CMP 40HX and 1024MB VRAM GeForce GTX 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 7 years and 10 months late

Boost Clock1650MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (448.0GB/s vs 64.00GB/s)

1728 additional rendering cores

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 185W)

Score

Benchmark

FP32 (float)

CMP 40HX +701%

7.603 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

CMP 40HX

VS

GeForce GTX 645 OEM

Graphics Card

Feb 2021

Release Date

Apr 2013

Mining GPUs

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1470 MHz

Base Clock

-

1650 MHz

Boost Clock

-

1750 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

64.00GB/s

Render Config

-

36

SM Count

-

2304

Shading Units

576

144

TMUs

48

64

ROPs

16

288

Tensor Cores

-

36

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

105.6 GPixel/s

Pixel Rate

9.888 GPixel/s

237.6 GTexel/s

Texture Rate

39.55 GTexel/s

15.21 TFLOPS

FP16 (half)

-

7.603 TFLOPS

FP32 (float)

949.2 GFLOPS

237.6 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

185W

TDP

65W

450 W

Suggested PSU

250 W

No outputs

Outputs

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

1x 8-pin

Power Connectors

None

Graphics Processor

TU106

GPU Name

GK106

TU106-100-A1

GPU Variant

GK106-200-A1

Turing

Architecture

Kepler

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

10.8 billion

Transistors

2.54 billion

445 mm²

Die Size

221 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

7.5

CUDA

3.0

6.6

Shader Model

5.1

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