AMD Radeon HD 7970 vs NVIDIA GeForce 8800 GS

VS

AMD Radeon HD 7970

NVIDIA GeForce 8800 GS

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 384MB VRAM GeForce 8800 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 3 years and 11 months late

More VRAM (3GB vs 384GB)

Larger VRAM bandwidth (264.0GB/s vs 38.40GB/s)

1952 additional rendering cores

NVIDIA GeForce 8800 GS 's Advantages

Lower TDP (105W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +1335%

3.789 TFLOPS

GeForce 8800 GS

0.264 TFLOPS

Radeon HD 7970

VS

GeForce 8800 GS

Graphics Card

Dec 2011

Release Date

Jan 2008

Southern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

384MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

192bit

264.0GB/s

Bandwidth

38.40GB/s

Render Config

32

Compute Units

-

SM Count

12

2048

Shading Units

96

128

TMUs

48

32

ROPs

12

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

48 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

6.600 GPixel/s

118.4 GTexel/s

Texture Rate

26.40 GTexel/s

-

3.789 TFLOPS

FP32 (float)

264.0 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

105W

600 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 + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

G92

Tahiti XT (215-0821060)

GPU Variant

G92-150-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

4.313 billion

Transistors

0.754 billion

352 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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