ATI Mobility Radeon HD 4870 X2 vs NVIDIA GeForce 315M

VS

ATI Mobility Radeon HD 4870 X2 NVIDIA GeForce 315M

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4870 X2 and 512MB VRAM GeForce 315M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4870 X2 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (89.60GB/s vs 12.80GB/s)

784 additional rendering cores

NVIDIA GeForce 315M 's Advantages

Released 2 years late

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4870 X2 +2156%

0.88 TFLOPS

GeForce 315M

0.039 TFLOPS

Mobility Radeon HD 4870 X2

VS

GeForce 315M

Graphics Card

Jan 2009

Release Date

Jan 2011

M9x

Generation

GeForce 300M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

700 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

89.60GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

10

Compute Units

-

800

Shading Units

16

40

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

Theoretical Performance

8.800 GPixel/s

Pixel Rate

2.424 GPixel/s

22.00 GTexel/s

Texture Rate

4.848 GTexel/s

-

FP16 (half)

-

880.0 GFLOPS

FP32 (float)

38.78 GFLOPS

176.0 GFLOPS

FP64 (double)

-

Graphics Processor

M98

GPU Name

GT218

M98 XT L2 (216-0732023)

GPU Variant

N11M-GE

TeraScale

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

0.26 billion

256 mm²

Die Size

57 mm²

Board Design

Unknown

TDP

14W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.2

4.1

Shader Model

4.1

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