GeForce GT 640M vs Radeon R5 340

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.

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. The GeForce GT 640M is positioned at rank 224 and the Radeon R5 340 is on rank 136, so the Radeon R5 340 offers better cost-efficiency for playing games.

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

Performance Per Dollar GeForce GT 640M

#52

Radeon 8060S

MSRP: $800|Avg: $800

99%

#53

Radeon RX 6850M XT

MSRP: $800|Avg: $800

96%

#214

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

479%

#216

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

434%

#217

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

433%

#221

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

394%

#222

Radeon RX 6300

MSRP: $60|Avg: $40

391%

#224

GeForce GT 640M

MSRP: N/A|Avg: $50

100%

#228

GeForce GT 750M Mac Edition

MSRP: $149|Avg: $40

98%

#230

Maxwell GPU Surface Book

MSRP: $150|Avg: $75

97%

#235

Radeon RX 540

MSRP: $99|Avg: $40

95%

#236

Radeon HD 6750M

MSRP: N/A|Avg: $60

94%

#237

Radeon HD 7570M

MSRP: N/A|Avg: $15

93%

#239

Arc Graphics 130T

MSRP: $300|Avg: $250

91%

Based on actual market prices and performance benchmarks.

Performance Per Dollar Radeon R5 340

#1

GeForce RTX 3060 Ti

MSRP: $399|Avg: $280

768%

#2

GeForce RTX 5060

MSRP: $299|Avg: $299

738%

#3

Radeon RX 5600 XT

MSRP: $279|Avg: $180

730%

#4

Radeon RX 9060

MSRP: $249|Avg: $249

728%

#5

GeForce RTX 5050

MSRP: $249|Avg: $249

727%

#6

GeForce RTX 3050 OEM

MSRP: $249|Avg: $150

723%

#7

Arc A580

MSRP: $179|Avg: $179

714%

#8

Radeon RX 9060 XT

MSRP: $299|Avg: $299

711%

#9

Radeon RX 9060 XT 8GB

MSRP: $299|Avg: $299

704%

#10

Radeon RX 7600

MSRP: $269|Avg: $250

703%

#11

Radeon RX 6600

MSRP: $329|Avg: $180

694%

#12

GeForce RTX 4060

MSRP: $299|Avg: $299

693%

#13

Arc B570

MSRP: $219|Avg: $219

680%

#14

Arc B580

MSRP: $249|Avg: $249

680%

#85

Radeon Ryzen 7 6800U

MSRP: $450|Avg: $450

99%

#86

Radeon Ryzen 5 6600U

MSRP: $350|Avg: $350

97%

#121

Radeon R5 430 OEM

MSRP: N/A|Avg: $13

847%

#136

Radeon R5 340

MSRP: $99|Avg: $25

100%

#137

Radeon HD 8570

MSRP: $100|Avg: $20

100%

#139

GeForce GT 730

MSRP: $89|Avg: $45

98%

#140

Radeon HD 8400E

MSRP: $30|Avg: $5

97%

#142

Radeon HD 8400

MSRP: $30|Avg: $5

96%

#143

Radeon HD 5750

MSRP: $130|Avg: $25

95%

#145

Radeon HD 8330E

MSRP: $30|Avg: $5

92%

#146

Radeon HD 8670D

MSRP: $60|Avg: $15

91%

#147

Radeon R7 A370

MSRP: $149|Avg: $51

91%

#148

Radeon HD 5770

MSRP: $159|Avg: $159

90%

#149

Radeon HD 4770

MSRP: $109|Avg: $109

88%

#150

Radeon HD 8510G

MSRP: $45|Avg: $5

88%

#151

Radeon HD 8550G

MSRP: $50|Avg: $50

88%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Radeon R5 340 is the superior choice for raw performance. It leads with a 3.1% higher G3D Mark score. However, the GeForce GT 640M offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.

Insight	GeForce GT 640M	Radeon R5 340
Performance	❌Lower raw frame rates (-3.1%)	✅Leading raw performance (+3.1%)
Longevity	🛑Obsolete Architecture (2012 / Kepler (2012−2018))	🛑Obsolete Architecture (2017 / GCN 4.0 (2016−2020))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	✅ More VRAM (+300%)	❌ Less VRAM capacity
Efficiency	💡 Excellent Perf/Watt	⚡ Higher Power Consumption
Case Fit	—	—

💎 Value Proposition

The Radeon R5 340 offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Radeon R5 340 holds the technical lead. Priced at $25 (vs $50), it costs 50% less, resulting in a 106.2% higher cost efficiency score.

Insight	GeForce GT 640M	Radeon R5 340
Cost Efficiency	❌Lower cost efficiency	✅Better overall value (+106.2%)
Upfront Cost	⚠️Higher upfront cost ($50)	✅More affordable ($25)

Performance Check

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

GeForce GT 640M Benchmark Check

Radeon R5 340 Benchmark Check

Technical Specifications

Side-by-side comparison of GeForce GT 640M and Radeon R5 340

GeForce GT 640M

The GeForce GT 640M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 625 MHz to 645 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 907 points.

Radeon R5 340

The Radeon R5 340 is manufactured by AMD. It was released in April 20 2017. It features the GCN 4.0 architecture. The core clock ranges from 1183 MHz to 1124 MHz. It has 384 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 935 points. Launch price was $79.

⚡

Graphics Performance

The GeForce GT 640M scores 907 and the Radeon R5 340 reaches 935 in the G3D Mark benchmark — just a 3.1% difference, making them near-identical in rasterization performance. The GeForce GT 640M is built on Kepler while the Radeon R5 340 uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 384 (GeForce GT 640M) vs 384 (Radeon R5 340). Raw compute: 0.48 TFLOPS (GeForce GT 640M) vs 0.9085 TFLOPS (Radeon R5 340). Boost clocks: 645 MHz vs 1124 MHz.

Feature	GeForce GT 640M	Radeon R5 340
G3D Mark Score	907	935+3%
Architecture	Kepler	GCN 4.0
Process Node	28 nm	14 nm
Shading Units	384	384
Compute (TFLOPS)	0.48 TFLOPS	0.9085 TFLOPS+89%
Boost Clock	645 MHz	1124 MHz+74%
ROPs	16	16
TMUs	32+33%	24
L1 Cache	32 KB	96 KB+200%
L2 Cache	256 KB	512 KB+100%

✨

Advanced Features (DLSS/FSR)

Feature	GeForce GT 640M	Radeon R5 340
Upscaling Tech	FSR 1.0 (Software)	FSR 1.0 (Software)
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GT 640M comes with 2 GB of VRAM, while the Radeon R5 340 has 512 MB. The GeForce GT 640M offers 300% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 128-bit. L2 Cache: 256 KB (GeForce GT 640M) vs 512 KB (Radeon R5 340) — the Radeon R5 340 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640M	Radeon R5 340
VRAM Capacity	2 GB+300%	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit	128-bit
L2 Cache	256 KB	512 KB+100%

🔌

Power & Dimensions

The GeForce GT 640M draws 32W versus the Radeon R5 340's 50W — a 43.9% difference. The GeForce GT 640M is more power-efficient. Recommended PSU: 350W (GeForce GT 640M) vs 300W (Radeon R5 340). Power connectors: PCIe-powered vs None.

Feature	GeForce GT 640M	Radeon R5 340
TDP	32W-36%	50W
Recommended PSU	350W	300W-14%
Power Connector	PCIe-powered	None
Length	0mm	—
Height	0mm	—
Slots	0	—
Temp (Load)	70°C	—
Perf/Watt	28.3+51%	18.7

💰

Value Analysis

The Radeon R5 340 costs 50% less ($25 savings) at current market prices. Performance per dollar (G3D Mark / price): 18.1 (GeForce GT 640M) vs 37.4 (Radeon R5 340) — the Radeon R5 340 offers 106.6% better value. The Radeon R5 340 is the newer GPU (2017 vs 2012).