AMD Radeon HD 6850 X2 vs NVIDIA GeForce 8800 GTS 512

VS

AMD Radeon HD 6850 X2

NVIDIA GeForce 8800 GTS 512

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 512MB VRAM GeForce 8800 GTS 512 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Released 3 years and 9 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 52.48GB/s)

832 additional rendering cores

NVIDIA GeForce 8800 GTS 512 's Advantages

Lower TDP (135W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2 +269%

1.536 TFLOPS

GeForce 8800 GTS 512

0.416 TFLOPS

Radeon HD 6850 X2

VS

GeForce 8800 GTS 512

Graphics Card

Sep 2011

Release Date

Dec 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

820 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

52.48GB/s

Render Config

12

Compute Units

-

SM Count

16

960

Shading Units

128

48

TMUs

64

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

10.40 GPixel/s

38.40 GTexel/s

Texture Rate

41.60 GTexel/s

-

1.536 TFLOPS

FP32 (float)

416.0 GFLOPS

-

Board Design

254W

TDP

135W

600 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

G92

Barts PRO (215-0798006)

GPU Variant

G92-400-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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