AMD Radeon R9 390 X2 vs NVIDIA GeForce GTX 275

VS

AMD Radeon R9 390 X2

NVIDIA GeForce GTX 275

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 896MB VRAM GeForce GTX 275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 6 years and 8 months late

More VRAM (8GB vs 896GB)

Larger VRAM bandwidth (345.6GB/s vs 127.0GB/s)

2320 additional rendering cores

NVIDIA GeForce GTX 275 's Advantages

Lower TDP (219W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +659%

5.12 TFLOPS

GeForce GTX 275

0.674 TFLOPS

Radeon R9 390 X2

VS

GeForce GTX 275

Graphics Card

Sep 2015

Release Date

Jan 2009

Pirate Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

1134 MHz

Memory

8GB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

448bit

345.6GB/s

Bandwidth

127.0GB/s

Render Config

40

Compute Units

-

SM Count

30

2560

Shading Units

240

160

TMUs

80

64

ROPs

28

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

224 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

17.72 GPixel/s

160.0 GTexel/s

Texture Rate

50.64 GTexel/s

-

5.120 TFLOPS

FP32 (float)

673.9 GFLOPS

640.0 GFLOPS

FP64 (double)

84.24 GFLOPS

Board Design

580W

TDP

219W

950 W

Suggested PSU

550 W

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

Outputs

2x DVI

4x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Grenada

GPU Name

GT200B

Grenada PRO (215-0880030)

GPU Variant

G200-105-B3

GCN 2.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

1.4 billion

438 mm²

Die Size

470 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.3

6.3

Shader Model

4.0

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