NVIDIA GeForce GTX 645 OEM vs AMD Radeon RX Vega 64 Limited Edition

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon RX Vega 64 Limited Edition

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 8GB VRAM Radeon RX Vega 64 Limited Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 295W)

AMD Radeon RX Vega 64 Limited Edition 's Advantages

Released 4 years and 4 months late

Boost Clock1546MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (483.8GB/s vs 64.00GB/s)

3520 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon RX Vega 64 Limited Edition +1234%

12.66 TFLOPS

GeForce GTX 645 OEM

VS

Radeon RX Vega 64 Limited Edition

Graphics Card

Apr 2013

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

1247 MHz

-

Boost Clock

1546 MHz

1000 MHz

Memory Clock

945 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

2048bit

64.00GB/s

Bandwidth

483.8GB/s

Render Config

-

Compute Units

64

-

576

Shading Units

4096

48

TMUs

256

16

ROPs

64

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

98.94 GPixel/s

39.55 GTexel/s

Texture Rate

395.8 GTexel/s

-

FP16 (half)

25.33 TFLOPS

949.2 GFLOPS

FP32 (float)

12.66 TFLOPS

39.55 GFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

65W

TDP

295W

250 W

Suggested PSU

600 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

GK106

GPU Name

Vega 10

GK106-200-A1

GPU Variant

Vega 10 XT (215-0894200)

Kepler

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.54 billion

Transistors

12.5 billion

221 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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