NVIDIA GeForce GTX 275 vs ATI Radeon HD 4250

VS

NVIDIA GeForce GTX 275

ATI Radeon HD 4250

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 512MB VRAM Radeon HD 4250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 's Advantages

More VRAM (896GB vs 512GB)

Larger VRAM bandwidth (127.0GB/s vs 6.336GB/s)

200 additional rendering cores

ATI Radeon HD 4250 's Advantages

Lower TDP (25W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 +1304%

0.674 TFLOPS

Radeon HD 4250

0.048 TFLOPS

GeForce GTX 275

VS

Radeon HD 4250

Graphics Card

Jan 2009

Release Date

Feb 2009

GeForce 200

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

396 MHz

Memory

896MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

448bit

Memory Bus

64bit

127.0GB/s

Bandwidth

6.336GB/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

2.376 GPixel/s

50.64 GTexel/s

Texture Rate

2.376 GTexel/s

-

673.9 GFLOPS

FP32 (float)

47.52 GFLOPS

84.24 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

25W

550 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x VGA 1x S-Video

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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