AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce 8800 GTS 320

VS

AMD Radeon HD 7770 GHz Edition

NVIDIA GeForce 8800 GTS 320

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 320MB VRAM GeForce 8800 GTS 320 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 5 years late

More VRAM (1024GB vs 320GB)

Larger VRAM bandwidth (72.00GB/s vs 63.36GB/s)

544 additional rendering cores

Lower TDP (80W vs 143W)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +461%

1.28 TFLOPS

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon HD 7770 GHz Edition

VS

GeForce 8800 GTS 320

Graphics Card

Feb 2012

Release Date

Feb 2007

Southern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

792 MHz

Memory

1024MB

Memory Size

320MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

320bit

72.00GB/s

Bandwidth

63.36GB/s

Render Config

10

Compute Units

-

SM Count

12

640

Shading Units

96

40

TMUs

24

16

ROPs

20

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

80 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

10.26 GPixel/s

40.00 GTexel/s

Texture Rate

24.62 GTexel/s

-

1280 GFLOPS

FP32 (float)

228.1 GFLOPS

80.00 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

143W

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

G80

Cape Verde XT

GPU Variant

G80-100-K0-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

1.5 billion

Transistors

0.681 billion

123 mm²

Die Size

484 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1 (1.0)

1.2

Vulkan

N/A

-

CUDA

1.0

5.1

Shader Model

4.0

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