NVIDIA GeForce GTX 275 vs AMD Radeon HD 6490

VS

NVIDIA GeForce GTX 275

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 's Advantages

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

AMD Radeon HD 6490 's Advantages

Released 2 years and 6 months late

More VRAM (1024GB vs 896GB)

80 additional rendering cores

Lower TDP (39W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 +91%

0.674 TFLOPS

Radeon HD 6490

0.352 TFLOPS

GeForce GTX 275

VS

Radeon HD 6490

Graphics Card

Jan 2009

Release Date

Jul 2011

GeForce 200

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

500 MHz

Memory

896MB

Memory Size

1024MB

GDDR3

Memory Type

DDR2

448bit

Memory Bus

128bit

127.0GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

4

30

SM Count

-

240

Shading Units

320

80

TMUs

16

28

ROPs

8

-

L1 Cache

8 KB (per CU)

224 KB

L2 Cache

256 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

4.400 GPixel/s

50.64 GTexel/s

Texture Rate

8.800 GTexel/s

-

673.9 GFLOPS

FP32 (float)

352.0 GFLOPS

84.24 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

39W

550 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

GT200B

GPU Name

Redwood

G200-105-B3

GPU Variant

Redwood LE

Tesla 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

1.4 billion

Transistors

0.627 billion

470 mm²

Die Size

104 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

5.0

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