AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce 8800 GT

VS

AMD Radeon HD 7770 GHz Edition

NVIDIA GeForce 8800 GT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz 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 7770 GHz Edition 's Advantages

Released 4 years and 4 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 57.60GB/s)

528 additional rendering cores

Lower TDP (80W vs 125W)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +280%

1.28 TFLOPS

GeForce 8800 GT

0.336 TFLOPS

Radeon HD 7770 GHz Edition

VS

GeForce 8800 GT

Graphics Card

Feb 2012

Release Date

Oct 2007

Southern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

57.60GB/s

Render Config

10

Compute Units

-

SM Count

14

640

Shading Units

112

40

TMUs

56

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

9.600 GPixel/s

40.00 GTexel/s

Texture Rate

33.60 GTexel/s

-

1280 GFLOPS

FP32 (float)

336.0 GFLOPS

80.00 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

125W

250 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

G92

Cape Verde XT

GPU Variant

G92-270-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

1.5 billion

Transistors

0.754 billion

123 mm²

Die Size

324 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

5.1

Shader Model

4.0

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