NVIDIA GeForce 9800 GT vs AMD Radeon HD 7950

VS

NVIDIA GeForce 9800 GT

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GT and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9800 GT 's Advantages

Lower TDP (125W vs 200W)

AMD Radeon HD 7950 's Advantages

Released 3 years and 6 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 57.60GB/s)

1680 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9800 GT

0.336 TFLOPS

Radeon HD 7950 +753%

2.867 TFLOPS

GeForce 9800 GT

VS

Radeon HD 7950

Graphics Card

Jul 2008

Release Date

Jan 2012

GeForce 9

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

384bit

57.60GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

14

SM Count

-

112

Shading Units

1792

56

TMUs

112

16

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

768 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

25.60 GPixel/s

33.60 GTexel/s

Texture Rate

89.60 GTexel/s

-

336.0 GFLOPS

FP32 (float)

2.867 TFLOPS

-

FP64 (double)

716.8 GFLOPS

Board Design

125W

TDP

200W

300 W

Suggested PSU

550 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

G92B

GPU Name

Tahiti

G92-280-B1

GPU Variant

Tahiti PRO (215-0821056)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.754 billion

Transistors

4.313 billion

260 mm²

Die Size

352 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

5.1

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