AMD Radeon Pro W6800 vs NVIDIA GeForce GT 645 OEM

VS

AMD Radeon Pro W6800

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800 's Advantages

Released 9 years and 2 months late

Boost Clock2320MHz

More VRAM (32GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 91.87GB/s)

3552 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 250W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800 +1893%

17.82 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

Radeon Pro W6800

VS

GeForce GT 645 OEM

Graphics Card

Jun 2021

Release Date

Apr 2012

Radeon Pro

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2320 MHz

Boost Clock

-

2000 MHz

Memory Clock

957 MHz

Memory

32GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

512.0GB/s

Bandwidth

91.87GB/s

Render Config

60

Compute Units

-

SM Count

6

3840

Shading Units

288

240

TMUs

48

96

ROPs

24

-

60

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

384 KB

128 MB

L3 Cache

-

Theoretical Performance

222.7 GPixel/s

Pixel Rate

9.312 GPixel/s

556.8 GTexel/s

Texture Rate

37.25 GTexel/s

35.64 TFLOPS

FP16 (half)

-

17.82 TFLOPS

FP32 (float)

894.0 GFLOPS

1114 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

250W

TDP

102W

600 W

Suggested PSU

300 W

6x mini-DisplayPort 1.4a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

Navi 21

GPU Name

GF114

-

RDNA 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

1.95 billion

520 mm²

Die Size

332 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

2.1

6.5

Shader Model

5.1

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