AMD Radeon R9 270 1024SP vs NVIDIA RTX A400

VS

AMD Radeon R9 270 1024SP NVIDIA RTX A400

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 1024SP 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 96.00GB/s)

256 additional rendering cores

NVIDIA RTX A400 's Advantages

Released 9 years and 1 months late

Boost Clock has increased by 90% (1762MHz vs 925MHz)

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP

1.894 TFLOPS

RTX A400 +42%

2.706 TFLOPS

Radeon R9 270 1024SP

VS

RTX A400

Graphics Card

Mar 2015

Release Date

Apr 2024

Volcanic Islands

Generation

Quadro Ampere

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

900 MHz

Base Clock

727 MHz

925 MHz

Boost Clock

1762 MHz

1200 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

6

16

Compute Units

-

1024

Shading Units

768

64

TMUs

24

32

ROPs

16

-

Tensor Cores

24

-

RT Cores

6

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

2 MB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

28.19 GPixel/s

59.20 GTexel/s

Texture Rate

42.29 GTexel/s

-

FP16 (half)

2.706 TFLOPS

1.894 TFLOPS

FP32 (float)

2.706 TFLOPS

118.4 GFLOPS

FP64 (double)

42.29 GFLOPS

Graphics Processor

Pitcairn

GPU Name

GA107

Pitcairn PRO (215-0828062)

GPU Variant

-

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

2.8 billion

Transistors

8.7 billion

212 mm²

Die Size

200 mm²

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

4x mini-DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

5.1

Shader Model

6.7

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