AMD Radeon HD 7870 XT vs NVIDIA GeForce 9800 GT

VS

AMD Radeon HD 7870 XT

NVIDIA GeForce 9800 GT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 512MB VRAM GeForce 9800 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Released 4 years and 4 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.0GB/s vs 57.60GB/s)

1424 additional rendering cores

NVIDIA GeForce 9800 GT 's Advantages

Lower TDP (125W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +791%

2.995 TFLOPS

GeForce 9800 GT

0.336 TFLOPS

Radeon HD 7870 XT

VS

GeForce 9800 GT

Graphics Card

Nov 2012

Release Date

Jul 2008

Southern Islands

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

192.0GB/s

Bandwidth

57.60GB/s

Render Config

24

Compute Units

-

SM Count

14

1536

Shading Units

112

96

TMUs

56

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

9.600 GPixel/s

93.60 GTexel/s

Texture Rate

33.60 GTexel/s

-

2.995 TFLOPS

FP32 (float)

336.0 GFLOPS

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

125W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

G92B

Tahiti LE (215-0821122)

GPU Variant

G92-280-B1

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.754 billion

352 mm²

Die Size

260 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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