AMD Radeon R9 270 1024SP vs NVIDIA GeForce GT 640 OEM

VS

AMD Radeon R9 270 1024SP NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 2GB VRAM GeForce GT 640 OEM 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 11 months late

Boost Clock925MHz

Larger VRAM bandwidth (153.6GB/s vs 28.51GB/s)

640 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +209%

1.894 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

Radeon R9 270 1024SP

VS

GeForce GT 640 OEM

Graphics Card

Mar 2015

Release Date

Apr 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1200 MHz

Memory Clock

891 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

28.51GB/s

Render Config

-

SM Count

-

16

Compute Units

-

1024

Shading Units

384

64

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

6.376 GPixel/s

59.20 GTexel/s

Texture Rate

25.50 GTexel/s

-

FP16 (half)

-

1.894 TFLOPS

FP32 (float)

612.1 GFLOPS

118.4 GFLOPS

FP64 (double)

25.50 GFLOPS

Graphics Processor

Pitcairn

GPU Name

GK107

Pitcairn PRO (215-0828062)

GPU Variant

GK107-320-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.27 billion

212 mm²

Die Size

118 mm²

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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