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 X2 is manufactured by AMD. It was released in September 1 2008. It features the TeraScale architecture. The core clock speed is 660 MHz. It has 320 ×2 shading units. The thermal design power (TDP) is 110W. Manufactured using 55 nm process technology. G3D Mark benchmark score: 478 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 X2

#651

Radeon RX 780

MSRP: $499|Avg: $721

111%

#652

Mobility Radeon HD 560v

MSRP: $150|Avg: $30

111%

#653

Radeon HD 4650 AGP

MSRP: $80|Avg: $20

109%

#654

GeForce 9800M GS

MSRP: $200|Avg: $50

108%

#655

Radeon 3020e

MSRP: N/A|Avg: $49

108%

#656

Radeon Ryzen 7 6800HS

MSRP: $600|Avg: $600

105%

#657

Mobility Radeon HD 4570

MSRP: $49|Avg: $15

105%

#658

Mobility Radeon HD 4350

MSRP: $50|Avg: $15

103%

#659

GeForce 9400

MSRP: $59|Avg: $15

103%

#660

GeForce 9800 GTX+

MSRP: $229|Avg: $50

102%

#661

GeForce 7900 GTX

MSRP: $499|Avg: $40

101%

#662

Mobility Radeon HD serie 4200

MSRP: $49|Avg: $10

101%

#663

Radeon HD 7660G

MSRP: $50|Avg: $50

101%

#664

GeForce 505

MSRP: $99|Avg: $15

100%

#665

GeForce 9200M GE

MSRP: $100|Avg: $15

100%

#666

Mobility Radeon HD 3870 X2

MSRP: $449|Avg: $50

100%

#667

GeForce 9400 GT

MSRP: $59|Avg: $20

100%

#668

Radeon R5 435

MSRP: $80|Avg: $80

100%

#669

GeForce 9400M G

MSRP: $50|Avg: $10

98%

#670

Radeon HD 7600G + HD 7400M Dual

MSRP: $140|Avg: $35

98%

#671

GeForce GT625M

MSRP: N/A|Avg: $45

98%

#672

GeForce 8600 GT

MSRP: $159|Avg: $15

98%

#673

Mobility Radeon HD 3650

MSRP: $49|Avg: $15

98%

#674

Mobility Radeon HD 3470

MSRP: $50|Avg: $10

97%

#675

Radeon R9 M470X

MSRP: $350|Avg: $350

97%

#676

Radeon R9 M380

MSRP: $300|Avg: $300

96%

#677

Radeon HD 7640G

MSRP: $50|Avg: $50

95%

#678

Mobility Radeon X1900

MSRP: $49|Avg: $15

94%

#679

Radeon HD 7520G + HD 7600M Dual

MSRP: $250|Avg: $50

94%

#680

GeForce 7650 GS

MSRP: $150|Avg: $15

93%

#681

Radeon R5 230

MSRP: $50|Avg: $25

93%

Based on actual market prices and performance benchmarks.

FPS Benchmarks

Predicted performance for Mobility Radeon HD 3870 X2 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.

Technical Analysis

Detailed breakdown of Mobility Radeon HD 3870 X2 specifications and capabilities.

⚡

Graphics Performance

The Mobility Radeon HD 3870 X2 scores 478 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 (2005−2013) architecture (codename: M88), manufactured on a 55 nm process— smaller process nodes improve power efficiency and transistor density. It packs 320 ×2 shader units (the primary compute units for rendering pixels), 16 ×2 TMUs (texture mapping units), and 16 ×2 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 0.4224 TFLOPS ×2 — this measures the theoretical peak floating-point performance.

Specification	Mobility Radeon HD 3870 X2
G3D MarkPassMark 3D graphics benchmark score	478
ArchitectureGPU microarchitecture generation	TeraScale (2005−2013)
CodenameInternal GPU die codename	M88
Manufacturing ProcessFabrication node — smaller = more efficient	55 nm
Shader UnitsCore compute units for rendering/compute	320 ×2
TMUsTexture Mapping Units — handle texture sampling	16 ×2
ROPsRender Output Units — final pixel/color blending	16 ×2
Base ClockGuaranteed minimum GPU frequency	660 MHz
Compute (FP32)Peak single-precision floating-point performance	0.4224 TFLOPS ×2
Texture Fill RateTextures processed per second	10.56 ×2 GTexel/s
PCIe InterfaceCPU↔GPU data link generation	PCIe 1.1 x16
Transistor Count	666 million
Performance RankPosition in global GPU performance ranking	#919

💾

Video Memory (VRAM)

The Mobility Radeon HD 3870 X2 is equipped with 0.002 GB of GDDR5 video memory connected via a 64-bit memory bus, delivering Unknown of bandwidth. Memory operates at 8 Gbps effective speed.

Specification	Mobility Radeon HD 3870 X2
VRAM SizeVideo memory capacity — more = better for high-res textures	0.002 GB
VRAM TypeMemory technology generation	GDDR5
Memory BusWidth of data path — wider = more bandwidth	64-bit
Memory SpeedEffective memory data rate	8 Gbps
BandwidthMaximum data throughput between GPU and VRAM	Unknown
L2 Cache	256 kB

✨

Advanced Features & APIs

The Mobility Radeon HD 3870 X2 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 X2
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 1.1
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 X2
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 X2 draws 110 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 X2
TDPPower consumption under load	110 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 $50 (MSRP: $449), the Mobility Radeon HD 3870 X2 delivers 10 G3D Mark points per dollar. Overall performance ranking position: #919 among all indexed GPUs.

Specification	Mobility Radeon HD 3870 X2
MSRPManufacturer's Suggested Retail Price	$449
Avg Price (30d)Average market price over the last 30 days	$50
Performance RankPosition in global GPU performance ranking	#919
Release Date	September 1 2008
Release Year	2008

Specifications Reference

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

2 categories

Technical Specifications

19 specs

ROPs	16 ×2
TMUs	16 ×2
Vram	0.002 GB
DLSS/FSR	FSR upscaling
L2 Cache	256 kB
Core Clock	660 MHz
Memory Type	GDDR5
Memory Speed	8 Gbps
Shading Units	320 ×2
Upscaling Tech	AMD FidelityFX Super Resolution (FSR)
PCIe Generation	PCIe 1.1 x16
Memory Bandwidth	Unknown
Memory Bus Width	64-bit
Transistor Count	666 million
Frame Generation	FSR Frame Generation: No \| AMD Fluid Motion Frames: No \| FidelityFX Super Resolution: Yes
Texture Fill Rate	10.56 ×2
Manufacturing Process	55 nm
Power Consumption (TDP)	110 Watt
Floating Point Performance	0.4224 TFLOPS ×2