AMD Radeon HD 6390 vs NVIDIA GeForce GTX 275

VS

AMD Radeon HD 6390

NVIDIA GeForce GTX 275

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 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 HD 6390 's Advantages

Released 2 years and 6 months late

More VRAM (1024GB vs 896GB)

80 additional rendering cores

Lower TDP (39W vs 219W)

NVIDIA GeForce GTX 275 's Advantages

Larger VRAM bandwidth (127.0GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

GeForce GTX 275 +91%

0.674 TFLOPS

Radeon HD 6390

VS

GeForce GTX 275

Graphics Card

Jul 2011

Release Date

Jan 2009

Northern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1134 MHz

Memory

1024MB

Memory Size

896MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

448bit

16.00GB/s

Bandwidth

127.0GB/s

Render Config

4

Compute Units

-

SM Count

30

320

Shading Units

240

16

TMUs

80

8

ROPs

28

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

224 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

17.72 GPixel/s

8.800 GTexel/s

Texture Rate

50.64 GTexel/s

-

352.0 GFLOPS

FP32 (float)

673.9 GFLOPS

-

FP64 (double)

84.24 GFLOPS

Board Design

39W

TDP

219W

200 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI

None

Power Connectors

2x 6-pin

Graphics Processor

Redwood

GPU Name

GT200B

Redwood LE

GPU Variant

G200-105-B3

TeraScale 2

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.627 billion

Transistors

1.4 billion

104 mm²

Die Size

470 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.3

5.0

Shader Model

4.0

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