G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Overview

The Mobility Radeon HD 3870 is manufactured by AMD. It was released in January 7 2010. It features the TeraScale 2 architecture. The core clock speed is 700 MHz. It has 800 shading units. The thermal design power (TDP) is 50W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 548 points.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Mobility Radeon HD 3870

#403

Radeon RX 8050S

MSRP: $400|Avg: $400

111%

#404

Radeon R7 M465X

MSRP: $150|Avg: $45

109%

#405

Radeon 540X

MSRP: $99|Avg: $40

109%

#406

Radeon RX 640

MSRP: $159|Avg: $55

108%

#407

Radeon Vega 8

MSRP: $150|Avg: $40

107%

#408

GeForce 830A

MSRP: $100|Avg: $30

107%

#409

Radeon R9 M265X

MSRP: $200|Avg: $30

106%

#410

Mobility Radeon HD 5000

MSRP: $99|Avg: $20

106%

#411

GeForce 730A

MSRP: $60|Avg: $20

105%

#412

Radeon HD 6970M Crossfire

MSRP: $150|Avg: $150

103%

#413

GeForce MX150

MSRP: $150|Avg: $60

103%

#414

Radeon HD 8650G + 7700M Dual

MSRP: $150|Avg: $30

103%

#415

GeForce GT 730A

MSRP: $75|Avg: $20

102%

#416

HD Graphics 630

MSRP: $100|Avg: $30

101%

#417

Intel UHD Graphics P630

MSRP: $100|Avg: $50

101%

#418

Mobility Radeon HD 3870

MSRP: $129|Avg: $15

100%

#419

Radeon 6750M

MSRP: N/A|Avg: $25

100%

#420

GeForce MX130

MSRP: $120|Avg: $50

99%

#421

Mobility Radeon HD 4870

MSRP: $299|Avg: $20

99%

#422

Radeon R7 A8-8650

MSRP: $49|Avg: $20

98%

#423

Radeon HD 7620G

MSRP: $50|Avg: $10

98%

#424

Radeon R7 M370

MSRP: $130|Avg: $40

97%

#425

Radeon RX Vega11 Ryzen 7 3750H

MSRP: $150|Avg: $45

97%

#426

GeForce MX110

MSRP: $100|Avg: $40

97%

#427

GeForce RTX 2070 (móvel)

MSRP: $800|Avg: $350

97%

#428

GeForce GTX 770M SLI

MSRP: N/A|Avg: $80

96%

#429

GeForce GT 640M LE

MSRP: $80|Avg: $20

95%

#430

Radeon HD 8570D + HD 6570 Dual

MSRP: $120|Avg: $25

95%

#431

GeForce GT 755M Mac Edition

MSRP: $200|Avg: $50

94%

#432

Radeon R9 M385

MSRP: $300|Avg: $60

94%

#433

Radeon HD 8600/8700M

MSRP: N/A|Avg: $30

94%

Based on actual market prices and performance benchmarks.

FPS Benchmarks

Predicted performance for Mobility Radeon HD 3870 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.

Technical Analysis

Detailed breakdown of Mobility Radeon HD 3870 specifications and capabilities.

⚡

Graphics Performance

The Mobility Radeon HD 3870 scores 548 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Entry Level tier as a Legacy generation graphics card. It is built on the TeraScale 2 (2009−2015) architecture (codename: Broadway), manufactured on a 40 nm process— smaller process nodes improve power efficiency and transistor density. It packs 800 shader units (the primary compute units for rendering pixels), 40 TMUs (texture mapping units), and 16 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 1.12 TFLOPS — this measures the theoretical peak floating-point performance.

Specification	Mobility Radeon HD 3870
G3D MarkPassMark 3D graphics benchmark score	548
ArchitectureGPU microarchitecture generation	TeraScale 2 (2009−2015)
CodenameInternal GPU die codename	Broadway
Manufacturing ProcessFabrication node — smaller = more efficient	40 nm
Shader UnitsCore compute units for rendering/compute	800
TMUsTexture Mapping Units — handle texture sampling	40
ROPsRender Output Units — final pixel/color blending	16
Base ClockGuaranteed minimum GPU frequency	700 MHz
Compute (FP32)Peak single-precision floating-point performance	1.12 TFLOPS
Texture Fill RateTextures processed per second	28.00 GTexel/s
PCIe InterfaceCPU↔GPU data link generation	PCIe 2.1 x16
Transistor Count	1,040 million
Performance RankPosition in global GPU performance ranking	#846

💾

Video Memory (VRAM)

The Mobility Radeon HD 3870 is equipped with 0.5 GB of GDDR5 video memory connected via a 128-bit memory bus, delivering Unknown of bandwidth. Memory operates at 8 Gbps effective speed.

Specification	Mobility Radeon HD 3870
VRAM SizeVideo memory capacity — more = better for high-res textures	0.5 GB
VRAM TypeMemory technology generation	GDDR5
Memory BusWidth of data path — wider = more bandwidth	128-bit
Memory SpeedEffective memory data rate	8 Gbps
BandwidthMaximum data throughput between GPU and VRAM	Unknown
L1 Cache	80 kB
L2 Cache	256 kB

✨

Advanced Features & APIs

The Mobility Radeon HD 3870 supports modern upscaling and frame generation technologies: FidelityFX Super Resolution — these can dramatically boost effective FPS by generating intermediate frames or upscaling from lower internal resolution. Graphics API support: DirectX 10.1— latest API versions enable the most advanced rendering features like ray tracing and mesh shaders.

Specification	Mobility Radeon HD 3870
FSR Frame Generation	❌ Not Supported
AMD Fluid Motion Frames	❌ Not Supported
FidelityFX Super Resolution	✅ Supported
DirectXMicrosoft graphics API version	10.1
Compute APIGPGPU framework (CUDA/ROCm/OpenCL)	OpenCL 1.0
Multi-GPUSLI/CrossFire/NVLink support	CrossFire

🖥️

Display & Media

Display outputs: — supports up to 0 simultaneous displays. Hardware encoder: UVD, decoder: UVD— dedicated hardware for video encoding/decoding accelerates streaming, recording, and video playback.

Specification	Mobility Radeon HD 3870
Max DisplaysMaximum simultaneously connected monitors	0
Hardware EncoderVideo encoding engine version	UVD
Hardware DecoderVideo decoding engine version	UVD

🔌

Power & Dimensions

The Mobility Radeon HD 3870 draws 50 Watt under load (TDP) — a 350W PSU minimum is recommended. Power connector: PCIe-powered. Physical size: 1mm long, occupying 0 expansion slots— verify your case has clearance before purchasing.

Specification	Mobility Radeon HD 3870
TDPPower consumption under load	50 Watt
Recommended PSUMinimum power supply wattage	350W
Power ConnectorRequired PCIe power cable type	PCIe-powered
Card LengthGPU card length — check case clearance	1mm
Slot WidthExpansion slots occupied	0-slot

💰

Value Analysis

At an average price of $15 (MSRP: $129), the Mobility Radeon HD 3870 delivers 37 G3D Mark points per dollar. Overall performance ranking position: #846 among all indexed GPUs.

Specification	Mobility Radeon HD 3870
MSRPManufacturer's Suggested Retail Price	$129
Avg Price (30d)Average market price over the last 30 days	$15
Performance RankPosition in global GPU performance ranking	#846
Release Date	January 7 2010
Release Year	2010

Specifications Reference

Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.

2 categories

Technical Specifications

20 specs

ROPs	16
TMUs	40
Vram	0.5 GB
DLSS/FSR	FSR upscaling
L1 Cache	80 kB
L2 Cache	256 kB
Core Clock	700 MHz
Memory Type	GDDR5
Memory Speed	8 Gbps
Shading Units	800
Upscaling Tech	AMD FidelityFX Super Resolution (FSR)
PCIe Generation	PCIe 2.1 x16
Memory Bandwidth	Unknown
Memory Bus Width	128-bit
Transistor Count	1,040 million
Frame Generation	FSR Frame Generation: No \| AMD Fluid Motion Frames: No \| FidelityFX Super Resolution: Yes
Texture Fill Rate	28.00
Manufacturing Process	40 nm
Power Consumption (TDP)	50 Watt
Floating Point Performance	1.12 TFLOPS