AMD Radeon HD 8870 OEM vs NVIDIA GeForce GTX 275 PhysX Edition

VS

AMD Radeon HD 8870 OEM

NVIDIA GeForce GTX 275 PhysX Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 896MB VRAM GeForce GTX 275 PhysX Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870 OEM 's Advantages

Released 2 years and 11 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)

Radeon HD 8870 OEM +311%

2.56 TFLOPS

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 8870 OEM

VS

GeForce GTX 275 PhysX Edition

Graphics Card

Jan 2013

Release Date

Feb 2010

Sea Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1134 MHz

Memory

2GB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

448bit

153.6GB/s

Bandwidth

127.0GB/s

Render Config

20

Compute Units

-

SM Count

30

1280

Shading Units

240

80

TMUs

80

32

ROPs

28

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

224 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

17.72 GPixel/s

80.00 GTexel/s

Texture Rate

50.64 GTexel/s

-

2.560 TFLOPS

FP32 (float)

622.1 GFLOPS

160.0 GFLOPS

FP64 (double)

77.76 GFLOPS

Board Design

175W

TDP

219W

450 W

Suggested PSU

550 W

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

Outputs

2x DVI

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Pitcairn

GPU Name

G92B

Pitcairn XT (215-0828047)

GPU Variant

G92-421-B1

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.754 billion

212 mm²

Die Size

260 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.3

5.1

Shader Model

4.0

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