AMD Radeon HD 8790M vs NVIDIA GeForce GT 640M LE

VS

AMD Radeon HD 8790M NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8790M and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8790M 's Advantages

Released 11 months late

Boost Clock900MHz

Larger VRAM bandwidth (64.00GB/s vs 50.24GB/s)

288 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8790M +139%

0.691 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

Radeon HD 8790M

VS

GeForce GT 640M LE

Graphics Card

Apr 2013

Release Date

May 2012

Solar System

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1000 MHz

Memory Clock

785 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

50.24GB/s

Render Config

-

SM Count

2

6

Compute Units

-

384

Shading Units

96

24

TMUs

16

8

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

3.012 GPixel/s

21.60 GTexel/s

Texture Rate

12.05 GTexel/s

-

FP16 (half)

-

691.2 GFLOPS

FP32 (float)

289.0 GFLOPS

43.20 GFLOPS

FP64 (double)

24.08 GFLOPS

Graphics Processor

Mars

GPU Name

GF108

Mars M2 XTX (216-0842036)

GPU Variant

-

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.585 billion

77 mm²

Die Size

116 mm²

Board Design

Unknown

TDP

32W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

2.1

6.5 (5.1)

Shader Model

5.1

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