NVIDIA GeForce GTX 780 6 GB vs AMD Radeon HD 8870 OEM

VS

NVIDIA GeForce GTX 780 6 GB AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 780 6 GB and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 6 GB 's Advantages

Released 8 months late

Boost Clock902MHz

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (288.4GB/s vs 153.6GB/s)

1024 additional rendering cores

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 6 GB +62%

4.156 TFLOPS

Radeon HD 8870 OEM

2.56 TFLOPS

GeForce GTX 780 6 GB

VS

Radeon HD 8870 OEM

Graphics Card

Sep 2013

Release Date

Jan 2013

GeForce 700

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

1200 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.4GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

Compute Units

20

2304

Shading Units

1280

192

TMUs

80

48

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

1536 KB

L2 Cache

512 KB

Theoretical Performance

43.30 GPixel/s

Pixel Rate

32.00 GPixel/s

173.2 GTexel/s

Texture Rate

80.00 GTexel/s

-

FP16 (half)

-

4.156 TFLOPS

FP32 (float)

2.560 TFLOPS

173.2 GFLOPS

FP64 (double)

160.0 GFLOPS

Graphics Processor

GK110B

GPU Name

Pitcairn

GK110-301-B1

GPU Variant

Pitcairn XT (215-0828047)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

2.8 billion

561 mm²

Die Size

212 mm²

Board Design

250W

TDP

175W

600 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.5

CUDA

-

5.1

Shader Model

5.1

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