AMD Radeon HD 8870 OEM vs NVIDIA GeForce GTX 780 Ti

VS

AMD Radeon HD 8870 OEM

NVIDIA GeForce GTX 780 Ti

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 3GB VRAM GeForce GTX 780 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 250W)

NVIDIA GeForce GTX 780 Ti 's Advantages

Released 10 months late

Boost Clock928MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 153.6GB/s)

1600 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM

2.56 TFLOPS

GeForce GTX 780 Ti +108%

5.345 TFLOPS

Radeon HD 8870 OEM

VS

GeForce GTX 780 Ti

Graphics Card

Jan 2013

Release Date

Nov 2013

Sea Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

1200 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

153.6GB/s

Bandwidth

336.6GB/s

Render Config

20

Compute Units

-

1280

Shading Units

2880

80

TMUs

240

32

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

55.68 GPixel/s

80.00 GTexel/s

Texture Rate

222.7 GTexel/s

-

2.560 TFLOPS

FP32 (float)

5.345 TFLOPS

160.0 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

175W

TDP

250W

450 W

Suggested PSU

600 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Pitcairn

GPU Name

GK110B

Pitcairn XT (215-0828047)

GPU Variant

GK110-425-B1

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

7.08 billion

212 mm²

Die Size

561 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

5.1

Shader Model

5.1

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