Radeon RX 640 vs GeForce GTX 745

Radeon RX 640

2019Core: 1082 MHzBoost: 1218 MHz

GeForce GTX 745

2014Core: 1020 MHzBoost: 1085 MHz

Performance Spectrum - GPU

Radeon RX 640

2,172

+2.2%

Radeon RX 6750 GRE 12GB

GeForce GTX 745

2,126

0.0%

GeForce GTX 970XM FORCE

RTX 500 Ada Generation Laptop GPU

GeForce GTX 1080

TITAN V

About G3D Mark

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. The Radeon RX 640 is positioned at rank #323 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Radeon RX 640

#313

Radeon RX 550X (móvel)

MSRP: $35|Avg: $35

795%

#315

GeForce GTX 1070 with Max-Q Design

MSRP: N/A|Avg: $150

720%

#316

GeForce GTX 1060 with Max-Q Design

MSRP: N/A|Avg: $100

719%

#320

GeForce GTX 1050 (Mobile)

MSRP: N/A|Avg: $50

653%

#321

Radeon RX 6300

MSRP: $60|Avg: $40

649%

#323

Radeon RX 640

MSRP: $159|Avg: $55

100%

#326

Iris Pro Graphics P580

MSRP: $150|Avg: $60

99%

#327

Radeon E8870PCIe

MSRP: $250|Avg: $200

99%

#330

Arc Graphics 140T

MSRP: $350|Avg: $300

94%

#331

Radeon 680M

MSRP: N/A|Avg: $80

94%

#333

GeForce 730A

MSRP: $60|Avg: $20

93%

#334

GeForce GT 745A

MSRP: $99|Avg: $20

91%

#335

GeForce 710A

MSRP: $35|Avg: $62

91%

#336

Radeon HD 8670D + HD 6670 Dual

MSRP: $100|Avg: $10

89%

#338

GeForce MX230

MSRP: $150|Avg: $150

89%

Based on actual market prices and performance benchmarks.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

⚠️ Generational Difference

The Radeon RX 640 uses modern memory architecture. The Radeon RX 640 likely supports modern features like Ray Tracing, Tensor Cores, and DLSS/FSR upscaling, which act as force multipliers for performance. The GeForce GTX 745 lacks this hardware feature set, limiting its longevity in modern titles despite any raw power similarities.

🚀 Performance Leadership

The Radeon RX 640 is the superior choice for raw performance. It leads with a 2.2% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce GTX 745.

Insight	Radeon RX 640	GeForce GTX 745
Performance	✅Leading raw performance (+2.2%)	❌Lower raw frame rates (-2.2%)
Longevity	GCN 4.0 (2016−2020) (14nm)	🛑Obsolete Architecture (2014 / Maxwell (2014−2017))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+0%)
Efficiency	Normal Efficiency	Normal Efficiency
Case Fit	—	📏 Compact / SFF Friendly

💎 Value Proposition

The GeForce GTX 745 offers a compelling cost-to-performance ratio. Priced at $25 versus $55 for the Radeon RX 640, it costs 55% less. While it maintains basic entry-level capabilities, this results in a 115.3% higher cost efficiency score.

Insight	Radeon RX 640	GeForce GTX 745
Cost Efficiency	❌Lower cost efficiency	✅Better overall value (+115.3%)
Upfront Cost	⚠️Higher upfront cost ($55)	✅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.

Radeon RX 640 Benchmark Check

GeForce GTX 745 Benchmark Check

Technical Specifications

Side-by-side comparison of Radeon RX 640 and GeForce GTX 745

Radeon RX 640

The Radeon RX 640 is manufactured by AMD. It was released in May 13 2019. It features the GCN 4.0 architecture. The core clock ranges from 1082 MHz to 1218 MHz. It has 640 shading units. The thermal design power (TDP) is 50W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 2,172 points.

GeForce GTX 745

The GeForce GTX 745 is manufactured by NVIDIA. It was released in February 18 2014. It features the Maxwell architecture. The core clock ranges from 1020 MHz to 1085 MHz. It has 512 shading units. The thermal design power (TDP) is 55W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,126 points. Launch price was $119.

⚡

Graphics Performance

The Radeon RX 640 scores 2,172 and the GeForce GTX 745 reaches 2,126 in the G3D Mark benchmark — just a 2.2% difference, making them near-identical in rasterization performance. The Radeon RX 640 is built on GCN 4.0 while the GeForce GTX 745 uses Maxwell, both on 14 nm vs 28 nm. Shader units: 640 (Radeon RX 640) vs 512 (GeForce GTX 745). Raw compute: 1.559 TFLOPS (Radeon RX 640) vs 1.111 TFLOPS (GeForce GTX 745). Boost clocks: 1218 MHz vs 1085 MHz.

Feature	Radeon RX 640	GeForce GTX 745
G3D Mark Score	2,172+2%	2,126
Architecture	GCN 4.0	Maxwell
Process Node	14 nm	28 nm
Shading Units	640+25%	512
Compute (TFLOPS)	1.559 TFLOPS+40%	1.111 TFLOPS
Boost Clock	1218 MHz+12%	1085 MHz
ROPs	16	16
TMUs	40+25%	32
L1 Cache	160 KB	256 KB+60%
L2 Cache	0.5 MB	2 MB+300%

✨

Advanced Features (DLSS/FSR)

A critical advantage for the Radeon RX 640 is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce GTX 745 lacks specific hardware/driver support for this native frame generation tier.

Feature	Radeon RX 640	GeForce GTX 745
Upscaling Tech	FSR 3 (Native)	FSR 2.1 (Compatible)
Frame Generation	FSR 3 / AFMF (Driver)	FSR 3 (Compatible)
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	Standard

💾

Video Memory (VRAM)

Both cards feature 4 GB of GDDR5. Bus width: 128-bit vs 128-bit. L2 Cache: 0.5 MB (Radeon RX 640) vs 2 MB (GeForce GTX 745) — the GeForce GTX 745 has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon RX 640	GeForce GTX 745
VRAM Capacity	4 GB	4 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	80 GB/s
Bus Width	128-bit	128-bit
L2 Cache	0.5 MB	2 MB+300%

🖥️

Display & API Support

DirectX support: 12 (FL 12_0) (Radeon RX 640) vs 12 (11_0) (GeForce GTX 745). Vulkan: 1.3 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 6 vs 3.

Feature	Radeon RX 640	GeForce GTX 745
DirectX	12 (FL 12_0)	12 (11_0)
Vulkan	1.3	1.4+8%
OpenGL	4.6	4.6
Max Displays	6+100%	3

🎬

Media & Encoding

Hardware encoder: VCE 3.4 (Radeon RX 640) vs NVENC 4th Gen (GeForce GTX 745). Decoder: UVD 6.3 vs PureVideo HD VP6. Supported codecs: H.264,H.265/HEVC (Radeon RX 640) vs H.264,VC-1,MPEG-2,MPEG-4 ASP (GeForce GTX 745).

Feature	Radeon RX 640	GeForce GTX 745
Encoder	VCE 3.4	NVENC 4th Gen
Decoder	UVD 6.3	PureVideo HD VP6
Codecs	H.264,H.265/HEVC	H.264,VC-1,MPEG-2,MPEG-4 ASP

🔌

Power & Dimensions

The Radeon RX 640 draws 50W versus the GeForce GTX 745's 55W — a 9.5% difference. The Radeon RX 640 is more power-efficient. Recommended PSU: 350W (Radeon RX 640) vs 300W (GeForce GTX 745). Power connectors: PCIe-powered vs 1x 6-pin.

Feature	Radeon RX 640	GeForce GTX 745
TDP	50W-9%	55W
Recommended PSU	350W	300W-14%
Power Connector	PCIe-powered	1x 6-pin
Length	—	145mm
Height	—	69mm
Slots	1	1
Temp (Load)	—	75°C
Perf/Watt	43.4+12%	38.7

💰

Value Analysis

The Radeon RX 640 launched at $159 MSRP and currently averages $55, while the GeForce GTX 745 launched at $80 and now averages $25. The GeForce GTX 745 costs 54.5% less ($30 savings) at current market prices. Performance per dollar (G3D Mark / price): 39.5 (Radeon RX 640) vs 85.0 (GeForce GTX 745) — the GeForce GTX 745 offers 115.2% better value. The Radeon RX 640 is the newer GPU (2019 vs 2014).