AMD Radeon HD 7870 XT vs NVIDIA GeForce G100 OEM

VS

AMD Radeon HD 7870 XT

NVIDIA GeForce G100 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 256MB VRAM GeForce G100 OEM 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 3 years and 8 months late

Boost Clock975MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (192.0GB/s vs 6.400GB/s)

1528 additional rendering cores

NVIDIA GeForce G100 OEM 's Advantages

Lower TDP (35W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +14161%

2.995 TFLOPS

GeForce G100 OEM

0.021 TFLOPS

Radeon HD 7870 XT

VS

GeForce G100 OEM

Graphics Card

Nov 2012

Release Date

Mar 2009

Southern Islands

Generation

GeForce 100

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

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

192.0GB/s

Bandwidth

6.400GB/s

Render Config

24

Compute Units

-

SM Count

1

1536

Shading Units

8

96

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

2.160 GPixel/s

93.60 GTexel/s

Texture Rate

2.160 GTexel/s

-

2.995 TFLOPS

FP32 (float)

20.80 GFLOPS

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

35W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

G98

Tahiti LE (215-0821122)

GPU Variant

G98-309-U2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

4.313 billion

Transistors

0.21 billion

352 mm²

Die Size

86 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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