NVIDIA GeForce GTX 645 OEM vs NVIDIA A40 PCIe

VS

NVIDIA GeForce GTX 645 OEM

NVIDIA A40 PCIe

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 300W)

NVIDIA A40 PCIe 's Advantages

Released 7 years and 6 months late

Boost Clock1740MHz

More VRAM (48GB vs 1024GB)

Larger VRAM bandwidth (695.8GB/s vs 64.00GB/s)

10176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

A40 PCIe +3843%

37.42 TFLOPS

GeForce GTX 645 OEM

VS

A40 PCIe

Graphics Card

Apr 2013

Release Date

Oct 2020

GeForce 600

Generation

Tesla

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1305 MHz

-

Boost Clock

1740 MHz

1000 MHz

Memory Clock

1812 MHz

Memory

1024MB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

695.8GB/s

Render Config

-

SM Count

84

576

Shading Units

10752

48

TMUs

336

16

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

194.9 GPixel/s

39.55 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

949.2 GFLOPS

FP32 (float)

37.42 TFLOPS

39.55 GFLOPS

FP64 (double)

584.6 GFLOPS

Board Design

65W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

3x DisplayPort 1.4a

None

Power Connectors

8-pin EPS

Graphics Processor

GK106

GPU Name

GA102

GK106-200-A1

GPU Variant

-

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

2.54 billion

Transistors

28.3 billion

221 mm²

Die Size

628 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

8.6

5.1

Shader Model

6.6

Related GPU Comparisons

1

NVIDIA GeForce GTX 645 OEM vs 3dfx Voodoo4-2 4200 PCI 32 MB

2

NVIDIA GeForce GTX 645 OEM vs ATI Radeon HD 5490

3

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GT 710 PCIe x1

4

NVIDIA GeForce GTX 645 OEM vs AMD Radeon HD 6770

5

NVIDIA GeForce GTX 645 OEM vs AMD Radeon R9 FURY

6

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce 7800 GTX 512

7

NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce RTX 3060

8

NVIDIA GeForce GTX 645 OEM vs AMD Radeon RX 470D

9

NVIDIA GeForce GTX 645 OEM vs AMD Radeon R7 360

10

NVIDIA GeForce GTX 645 OEM vs AMD Radeon HD 6850 1440SP Edition

Related News

1

AMD's Thunderous Strike: Ryzen 9 9950X3D Performance Scores Revealed for the First Time!

2

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

3

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

4

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

5

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

6

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

7

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

8

CXMT Reportedly Achieves 80% Yield in DDR5 Production

9

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

10

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market