NVIDIA GeForce GT 640 vs AMD Radeon RX Vega 56

VS

NVIDIA GeForce GT 640

AMD Radeon RX Vega 56

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 8GB VRAM Radeon RX Vega 56 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 210W)

AMD Radeon RX Vega 56 's Advantages

Released 5 years and 2 months late

Boost Clock1471MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (409.6GB/s vs 28.51GB/s)

3200 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Radeon RX Vega 56 +1420%

10.54 TFLOPS

GeForce GT 640

VS

Radeon RX Vega 56

Graphics Card

Jun 2012

Release Date

Aug 2017

GeForce 600

Generation

Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1156 MHz

-

Boost Clock

1471 MHz

891 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

HBM2

128bit

Memory Bus

2048bit

28.51GB/s

Bandwidth

409.6GB/s

Render Config

-

Compute Units

56

-

384

Shading Units

3584

32

TMUs

224

16

ROPs

64

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

94.14 GPixel/s

28.86 GTexel/s

Texture Rate

329.5 GTexel/s

-

FP16 (half)

21.09 TFLOPS

692.7 GFLOPS

FP32 (float)

10.54 TFLOPS

28.86 GFLOPS

FP64 (double)

659.0 GFLOPS

Board Design

65W

TDP

210W

250 W

Suggested PSU

550 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

2x 8-pin

Graphics Processor

GK107

GPU Name

Vega 10

GK107-300-A2

GPU Variant

Vega 10 XL (215-0894216)

Kepler

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.27 billion

Transistors

12.5 billion

118 mm²

Die Size

495 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.4

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