NVIDIA GeForce GTX 275 vs AMD Radeon R9 390

VS

NVIDIA GeForce GTX 275

AMD Radeon R9 390

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

Main Differences

NVIDIA GeForce GTX 275 's Advantages

Lower TDP (219W vs 275W)

AMD Radeon R9 390 's Advantages

Released 6 years and 5 months late

More VRAM (8GB vs 896GB)

Larger VRAM bandwidth (384.0GB/s vs 127.0GB/s)

2320 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275

0.674 TFLOPS

Radeon R9 390 +659%

5.12 TFLOPS

GeForce GTX 275

VS

Radeon R9 390

Graphics Card

Jan 2009

Release Date

Jun 2015

GeForce 200

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

1500 MHz

Memory

896MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

512bit

127.0GB/s

Bandwidth

384.0GB/s

Render Config

-

Compute Units

40

30

SM Count

-

240

Shading Units

2560

80

TMUs

160

28

ROPs

64

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

1024 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

64.00 GPixel/s

50.64 GTexel/s

Texture Rate

160.0 GTexel/s

-

673.9 GFLOPS

FP32 (float)

5.120 TFLOPS

84.24 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

219W

TDP

275W

550 W

Suggested PSU

600 W

2x DVI

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GT200B

GPU Name

Grenada

G200-105-B3

GPU Variant

Grenada PRO (215-0880030)

Tesla 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

1.4 billion

Transistors

6.2 billion

470 mm²

Die Size

438 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

1.3

CUDA

-

4.0

Shader Model

6.3

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