AMD Radeon R9 280X2 vs NVIDIA GeForce GT 620

VS

AMD Radeon R9 280X2

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 14.40GB/s)

1952 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +1422%

4.096 TFLOPS

GeForce GT 620

0.269 TFLOPS

Radeon R9 280X2

VS

GeForce GT 620

Graphics Card

Unknown

Release Date

May 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

288.0GB/s

Bandwidth

14.40GB/s

Render Config

32

Compute Units

-

SM Count

2

2048

Shading Units

96

128

TMUs

16

32

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

2.800 GPixel/s

128.0 GTexel/s

Texture Rate

11.20 GTexel/s

-

4.096 TFLOPS

FP32 (float)

268.8 GFLOPS

1024 GFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

375W

TDP

49W

750 W

Suggested PSU

200 W

6x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

3x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GF108

Tahiti XTL (215-0821065)

GPU Variant

GF108-100-KB-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.585 billion

352 mm²

Die Size

116 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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