NVIDIA GeForce GTX 275 PhysX Edition vs AMD Radeon HD 7870 GHz Edition

VS

NVIDIA GeForce GTX 275 PhysX Edition

AMD Radeon HD 7870 GHz Edition

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 2GB VRAM Radeon HD 7870 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

Released 2 years and 1 months late

More VRAM (2GB vs 896GB)

Larger VRAM bandwidth (153.6GB/s vs 127.0GB/s)

1040 additional rendering cores

Lower TDP (175W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 7870 GHz Edition +311%

2.56 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 7870 GHz Edition

Graphics Card

Feb 2010

Release Date

Mar 2012

GeForce 200

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

1200 MHz

Memory

896MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

30

SM Count

-

240

Shading Units

1280

80

TMUs

80

28

ROPs

32

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

512 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

32.00 GPixel/s

50.64 GTexel/s

Texture Rate

80.00 GTexel/s

-

622.1 GFLOPS

FP32 (float)

2.560 TFLOPS

77.76 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

219W

TDP

175W

550 W

Suggested PSU

450 W

2x DVI

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

G92B

GPU Name

Pitcairn

G92-421-B1

GPU Variant

Pitcairn XT (215-0828047)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.754 billion

Transistors

2.8 billion

260 mm²

Die Size

212 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.3

CUDA

-

4.0

Shader Model

5.1

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