NVIDIA GeForce GTX 275 vs ATI Radeon HD 3450 X2

VS

NVIDIA GeForce GTX 275

ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 512MB VRAM Radeon HD 3450 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 's Advantages

Released 1 years and 1 months late

More VRAM (896GB vs 512GB)

Larger VRAM bandwidth (127.0GB/s vs 8.000GB/s)

200 additional rendering cores

ATI Radeon HD 3450 X2 's Advantages

Lower TDP (50W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 +1304%

0.674 TFLOPS

Radeon HD 3450 X2

0.048 TFLOPS

GeForce GTX 275

VS

Radeon HD 3450 X2

Graphics Card

Jan 2009

Release Date

Dec 2007

GeForce 200

Generation

Radeon R600

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

512MB

GDDR3

Memory Type

DDR2

448bit

Memory Bus

64bit

127.0GB/s

Bandwidth

8.000GB/s

Render Config

-

Compute Units

2

30

SM Count

-

240

Shading Units

40

80

TMUs

4

28

ROPs

4

-

224 KB

L2 Cache

64 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

2.400 GPixel/s

50.64 GTexel/s

Texture Rate

2.400 GTexel/s

-

673.9 GFLOPS

FP32 (float)

48.00 GFLOPS

84.24 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

50W

550 W

Suggested PSU

250 W

2x DVI

Outputs

2x DMS-59

2x 6-pin

Power Connectors

None

Graphics Processor

GT200B

GPU Name

RV620

G200-105-B3

GPU Variant

RV620 LE

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

1.4 billion

Transistors

0.181 billion

470 mm²

Die Size

67 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

4.1

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