AMD Radeon HD 8770 OEM vs NVIDIA GeForce 920A

Edit	AMD Radeon HD 8770 OEM Check Price	NVIDIA GeForce 920A Check Price

Table of Contents

Graphics Processor
Graphics Card
Clocks
Memory Configuration
Render Configuration
Performance
Dimensions & Outputs
API Support & Features
Other Features
Mobile graphics

Graphics Processor

GPU model	Bonaire	GK208B
GPU variant	Bonaire XT (215-0839039)	N16V-GM
Architecture	GCN 2.0	Kepler 2.0
Foundry	TSMC	TSMC
Manufacturing process	28 nm	28 nm
Number of transistors	2,080 million	1,020 million
Die size	160 mm²	87 mm²

Graphics Card

Release date	Sep 2nd, 2013	—
Generation	Sea Islands	—
Production	End-of-life	—
Interface	PCIe 3.0 x16	—
Predecessor	Southern Islands	—
Successor	Volcanic Islands	—

Clocks

GPU clock	1050 MHz	954 MHz
Memory clock	1500 MHz 6 Gbps effective	1001 MHz 2 Gbps effective

Memory Configuration

Memory size	1024 MB	2 GB
Memory type	GDDR5	DDR3
Memory bus width	128 bit	64 bit
Bandwidth	96.00 GB/s	16.02 GB/s

Render Configuration

Shading units	896	384
TMUs	56	32
ROPs	16	8
Compute units	14	—
Cache L1	16 KB (per CU)	16 KB (per SMX)
Cache L2	256 KB	512 KB
SMX count	—	2

Performance

Pixel rate	16.80 GPixel/s	7.632 GPixel/s
Texture rate	58.80 GTexel/s	30.53 GTexel/s
FP32 (float) performance	1.882 TFLOPS	732.7 GFLOPS
FP64 (double) performance	117.6 GFLOPS (1:16)	30.53 GFLOPS (1:24)

Dimensions & Outputs

Slot width	Dual-slot	IGP
Length	183 mm 7.2 inches	—
TDP	85 W	33 W
Suggested PSU	250 W	—
Outputs	1x DVI1x HDMI2x mini-DisplayPort	No outputs
Power connectors	1x 6-pin	—

API Support & Features

DirectX	12 (12_0)	12 (11_0)
OpenGL	4.6	4.6
OpenCL	2.0	3.0
Vulkan	1.2	1.1
Shader model	6.3	5.1
CUDA	—	3.5

Other Features

Mobile graphics

Release date	—	Mar 13th, 2015
Generation	—	GeForce 900A
Production	—	Active
Interface	—	PCIe 3.0 x8
Predecessor	—	GeForce 800A

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