AMD Radeon HD 6870 vs NVIDIA GeForce 8800 GS

VS

AMD Radeon HD 6870

NVIDIA GeForce 8800 GS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 384MB VRAM GeForce 8800 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Released 2 years and 9 months late

More VRAM (1024GB vs 384GB)

Larger VRAM bandwidth (134.4GB/s vs 38.40GB/s)

1024 additional rendering cores

NVIDIA GeForce 8800 GS 's Advantages

Lower TDP (105W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +663%

2.016 TFLOPS

GeForce 8800 GS

0.264 TFLOPS

Radeon HD 6870

VS

GeForce 8800 GS

Graphics Card

Oct 2010

Release Date

Jan 2008

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

384MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

192bit

134.4GB/s

Bandwidth

38.40GB/s

Render Config

14

Compute Units

-

SM Count

12

1120

Shading Units

96

56

TMUs

48

32

ROPs

12

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

48 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

6.600 GPixel/s

50.40 GTexel/s

Texture Rate

26.40 GTexel/s

-

2.016 TFLOPS

FP32 (float)

264.0 GFLOPS

-

Board Design

151W

TDP

105W

450 W

Suggested PSU

300 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

G92

Barts XT (215-0798000)

GPU Variant

G92-150-A2

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.7 billion

Transistors

0.754 billion

255 mm²

Die Size

324 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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