NVIDIA GeForce GTX 680 vs AMD Radeon HD 8870 OEM

VS

NVIDIA GeForce GTX 680

AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 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 680 's Advantages

Boost Clock1058MHz

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

256 additional rendering cores

AMD Radeon HD 8870 OEM 's Advantages

Released 10 months late

Lower TDP (175W vs 195W)

Score

Benchmark

FP32 (float)

GeForce GTX 680 +26%

3.25 TFLOPS

Radeon HD 8870 OEM

2.56 TFLOPS

GeForce GTX 680

VS

Radeon HD 8870 OEM

Graphics Card

Mar 2012

Release Date

Jan 2013

GeForce 600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1006 MHz

Base Clock

-

1058 MHz

Boost Clock

-

1502 MHz

Memory Clock

1200 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

192.3GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

-

1536

Shading Units

1280

128

TMUs

80

32

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

33.86 GPixel/s

Pixel Rate

32.00 GPixel/s

135.4 GTexel/s

Texture Rate

80.00 GTexel/s

-

3.250 TFLOPS

FP32 (float)

2.560 TFLOPS

135.4 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

195W

TDP

175W

450 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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GK104

GPU Name

Pitcairn

GK104-400-A2

GPU Variant

Pitcairn XT (215-0828047)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

2.8 billion

294 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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