AMD Radeon Pro W6900X vs NVIDIA GeForce GT 640 OEM Rebrand

VS

AMD Radeon Pro W6900X

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6900X and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6900X 's Advantages

Released 9 years and 4 months late

Boost Clock2150MHz

More VRAM (32GB vs 1536GB)

Larger VRAM bandwidth (512.0GB/s vs 38.40GB/s)

4976 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Pro W6900X +5206%

22.02 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon Pro W6900X

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Aug 2021

Release Date

Apr 2012

Radeon Pro Mac

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2150 MHz

Boost Clock

-

2000 MHz

Memory Clock

800 MHz

Memory

32GB

Memory Size

1536MB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

192bit

512.0GB/s

Bandwidth

38.40GB/s

Render Config

80

Compute Units

-

SM Count

3

5120

Shading Units

144

320

TMUs

24

128

ROPs

24

-

80

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

384 KB

128 MB

L3 Cache

-

Theoretical Performance

275.2 GPixel/s

Pixel Rate

4.320 GPixel/s

688.0 GTexel/s

Texture Rate

17.28 GTexel/s

44.03 TFLOPS

FP16 (half)

-

22.02 TFLOPS

FP32 (float)

414.7 GFLOPS

1376 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

300W

TDP

75W

700 W

Suggested PSU

250 W

1x HDMI 2.1 4x Thunderbolt

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

GF116

Navi 21 Pro-XTA

GPU Variant

GF116-150-A1

RDNA 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

1.17 billion

520 mm²

Die Size

238 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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