NVIDIA GeForce GTX 275 vs AMD Radeon R9 270

VS

NVIDIA GeForce GTX 275

AMD Radeon R9 270

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 2GB VRAM Radeon R9 270 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 's Advantages

Released 4 years and 10 months late

Boost Clock925MHz

More VRAM (2GB vs 896GB)

Larger VRAM bandwidth (179.2GB/s vs 127.0GB/s)

1040 additional rendering cores

Lower TDP (150W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275

0.674 TFLOPS

Radeon R9 270 +251%

2.368 TFLOPS

GeForce GTX 275

VS

Radeon R9 270

Graphics Card

Jan 2009

Release Date

Nov 2013

GeForce 200

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1134 MHz

Memory Clock

1400 MHz

Memory

896MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

179.2GB/s

Render Config

-

Compute Units

20

30

SM Count

-

240

Shading Units

1280

80

TMUs

80

28

ROPs

32

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

512 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

29.60 GPixel/s

50.64 GTexel/s

Texture Rate

74.00 GTexel/s

-

673.9 GFLOPS

FP32 (float)

2.368 TFLOPS

84.24 GFLOPS

FP64 (double)

148.0 GFLOPS

Board Design

219W

TDP

150W

550 W

Suggested PSU

450 W

2x DVI

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GT200B

GPU Name

Curacao

G200-105-B3

GPU Variant

Curacao PRO (215-0848000)

Tesla 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

1.4 billion

Transistors

2.8 billion

470 mm²

Die Size

212 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.3

CUDA

-

4.0

Shader Model

5.1

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