AMD Radeon HD 8870 OEM vs NVIDIA GeForce 6800 XT

VS

AMD Radeon HD 8870 OEM

NVIDIA GeForce 6800 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 256MB VRAM GeForce 6800 XT 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 7 years and 4 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (153.6GB/s vs 38.40GB/s)

1280 additional rendering cores

Score

Radeon HD 8870 OEM

VS

GeForce 6800 XT

Graphics Card

Jan 2013

Release Date

Sep 2005

Sea Islands

Generation

GeForce 6 AGP

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1200 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

38.40GB/s

Render Config

20

Compute Units

-

1280

Shading Units

-

80

TMUs

12

32

ROPs

8

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

3.600 GPixel/s

80.00 GTexel/s

Texture Rate

5.400 GTexel/s

-

2.560 TFLOPS

FP32 (float)

-

160.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

Unknown

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

1x Molex

Graphics Processor

Pitcairn

GPU Name

NV42

Pitcairn XT (215-0828047)

GPU Variant

6800 XT

GCN 1.0

Architecture

Curie

TSMC

Foundry

TSMC

28 nm

Process Size

110 nm

2.8 billion

Transistors

0.202 billion

212 mm²

Die Size

222 mm²

Graphics Features

12 (11_1)

DirectX

9.0c (9_3)

4.6

OpenGL

2.0 (full) 2.1 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

3.0

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