AMD Radeon R9 270 1024SP vs NVIDIA GeForce GT 620

VS

AMD Radeon R9 270 1024SP

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP 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 270 1024SP 's Advantages

Released 2 years and 10 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)

928 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +604%

1.894 TFLOPS

GeForce GT 620

0.269 TFLOPS

Radeon R9 270 1024SP

VS

GeForce GT 620

Graphics Card

Mar 2015

Release Date

May 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1200 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

14.40GB/s

Render Config

16

Compute Units

-

SM Count

2

1024

Shading Units

96

64

TMUs

16

32

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.800 GPixel/s

59.20 GTexel/s

Texture Rate

11.20 GTexel/s

-

1.894 TFLOPS

FP32 (float)

268.8 GFLOPS

118.4 GFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

150W

TDP

49W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

GF108

Pitcairn PRO (215-0828062)

GPU Variant

GF108-100-KB-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.585 billion

212 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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