NVIDIA GeForce 8800 Ultra vs AMD Radeon HD 7850

VS

NVIDIA GeForce 8800 Ultra

AMD Radeon HD 7850

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 2GB VRAM Radeon HD 7850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

Released 4 years and 10 months late

More VRAM (2GB vs 768GB)

Larger VRAM bandwidth (153.6GB/s vs 103.7GB/s)

896 additional rendering cores

Lower TDP (130W vs 171W)

Score

Benchmark

FP32 (float)

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 7850 +355%

1.761 TFLOPS

GeForce 8800 Ultra

VS

Radeon HD 7850

Graphics Card

May 2007

Release Date

Mar 2012

GeForce 8

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1080 MHz

Memory Clock

1200 MHz

Memory

768MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

384bit

Memory Bus

256bit

103.7GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

16

SM Count

-

128

Shading Units

1024

32

TMUs

64

24

ROPs

32

-

L1 Cache

16 KB (per CU)

96 KB

L2 Cache

512 KB

-

Theoretical Performance

14.69 GPixel/s

Pixel Rate

27.52 GPixel/s

39.17 GTexel/s

Texture Rate

55.04 GTexel/s

-

387.1 GFLOPS

FP32 (float)

1.761 TFLOPS

-

FP64 (double)

110.1 GFLOPS

Board Design

171W

TDP

130W

450 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

G80

GPU Name

Pitcairn

G80-450-A3

GPU Variant

Pitcairn PRO (215-0828062)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

90 nm

Process Size

28 nm

0.681 billion

Transistors

2.8 billion

484 mm²

Die Size

212 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1 (1.0)

OpenCL

1.2

N/A

Vulkan

1.2

1.0

CUDA

-

4.0

Shader Model

5.1

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