NVIDIA GeForce GT 640 OEM Rebrand vs AMD Radeon RX Vega Nano

VS

NVIDIA GeForce GT 640 OEM Rebrand

AMD Radeon RX Vega Nano

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 8GB VRAM Radeon RX Vega Nano to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 175W)

AMD Radeon RX Vega Nano 's Advantages

Boost Clock1546MHz

More VRAM (8GB vs 1536GB)

Larger VRAM bandwidth (409.6GB/s vs 38.40GB/s)

3952 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon RX Vega Nano +2950%

12.66 TFLOPS

GeForce GT 640 OEM Rebrand

VS

Radeon RX Vega Nano

Graphics Card

Apr 2012

Release Date

Unknown

GeForce 600

Generation

Vega

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1247 MHz

-

Boost Clock

1546 MHz

800 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

8GB

DDR3

Memory Type

HBM2

192bit

Memory Bus

2048bit

38.40GB/s

Bandwidth

409.6GB/s

Render Config

-

Compute Units

64

3

SM Count

-

144

Shading Units

4096

24

TMUs

256

24

ROPs

64

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

4 MB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

98.94 GPixel/s

17.28 GTexel/s

Texture Rate

395.8 GTexel/s

-

414.7 GFLOPS

FP32 (float)

12.66 TFLOPS

34.56 GFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

75W

TDP

175W

250 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

GF116

GPU Name

Vega 10

GF116-150-A1

GPU Variant

Vega 10 XT (215-0894200)

Fermi 2.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.17 billion

Transistors

12.5 billion

238 mm²

Die Size

495 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.4

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