NVIDIA GeForce GT 640 vs AMD Radeon Pro W6900X

VS

NVIDIA GeForce GT 640

AMD Radeon Pro W6900X

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 32GB VRAM Radeon Pro W6900X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 300W)

AMD Radeon Pro W6900X 's Advantages

Released 9 years and 2 months late

Boost Clock2150MHz

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 28.51GB/s)

4736 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Radeon Pro W6900X +3077%

22.02 TFLOPS

Blender

GeForce GT 640

32

Radeon Pro W6900X +6753%

2193

GeForce GT 640

VS

Radeon Pro W6900X

Graphics Card

Jun 2012

Release Date

Aug 2021

GeForce 600

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2150 MHz

891 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

32GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

256bit

28.51GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

80

-

384

Shading Units

5120

32

TMUs

320

16

ROPs

128

-

RT Cores

80

16 KB (per SMX)

L1 Cache

128 KB per Array

256 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

7.216 GPixel/s

Pixel Rate

275.2 GPixel/s

28.86 GTexel/s

Texture Rate

688.0 GTexel/s

-

FP16 (half)

44.03 TFLOPS

692.7 GFLOPS

FP32 (float)

22.02 TFLOPS

28.86 GFLOPS

FP64 (double)

1376 GFLOPS

Board Design

65W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 4x Thunderbolt

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

Navi 21

GK107-300-A2

GPU Variant

Navi 21 Pro-XTA

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

1.27 billion

Transistors

26.8 billion

118 mm²

Die Size

520 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.5

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