AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce 8800 GT

VS

AMD Radeon HD 6870 1600SP Edition

NVIDIA GeForce 8800 GT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 512MB VRAM GeForce 8800 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 5 years and 3 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 57.60GB/s)

1488 additional rendering cores

NVIDIA GeForce 8800 GT 's Advantages

Lower TDP (125W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition +709%

2.72 TFLOPS

GeForce 8800 GT

0.336 TFLOPS

Radeon HD 6870 1600SP Edition

VS

GeForce 8800 GT

Graphics Card

Jan 2013

Release Date

Oct 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

57.60GB/s

Render Config

20

Compute Units

-

SM Count

14

1600

Shading Units

112

80

TMUs

56

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

9.600 GPixel/s

68.00 GTexel/s

Texture Rate

33.60 GTexel/s

-

2.720 TFLOPS

FP32 (float)

336.0 GFLOPS

544.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

125W

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

Cypress

GPU Name

G92

Cypress XT (215-0735033)

GPU Variant

G92-270-A2

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

2.154 billion

Transistors

0.754 billion

334 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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