AMD Radeon HD 8870 OEM vs NVIDIA GeForce GTX 680 Mac Edition

VS

AMD Radeon HD 8870 OEM

NVIDIA GeForce GTX 680 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 2GB VRAM GeForce GTX 680 Mac 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

Lower TDP (175W vs 195W)

NVIDIA GeForce GTX 680 Mac Edition 's Advantages

Boost Clock1058MHz

Larger VRAM bandwidth (192.3GB/s vs 153.6GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM

2.56 TFLOPS

GeForce GTX 680 Mac Edition +26%

3.25 TFLOPS

Radeon HD 8870 OEM

VS

GeForce GTX 680 Mac Edition

Graphics Card

Jan 2013

Release Date

Apr 2013

Sea Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1058 MHz

1200 MHz

Memory Clock

1502 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

192.3GB/s

Render Config

20

Compute Units

-

1280

Shading Units

1536

80

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

33.86 GPixel/s

80.00 GTexel/s

Texture Rate

135.4 GTexel/s

-

2.560 TFLOPS

FP32 (float)

3.250 TFLOPS

160.0 GFLOPS

FP64 (double)

135.4 GFLOPS

Board Design

175W

TDP

195W

450 W

Suggested PSU

450 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

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

GK104

Pitcairn XT (215-0828047)

GPU Variant

GK104-400-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

3.54 billion

212 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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