Iris Pro Graphics 580
VS
GeForce GT 645

Iris Pro Graphics 580 vs GeForce GT 645

Intel

Iris Pro Graphics 580

2015Core: 350 MHzBoost: 950 MHz

Popular choices:

RTX 4060•RTX 3060•RTX 4060 Ti•RTX 3070•GTX 1650•RTX 3060 Ti•RTX 4070•RTX 3050•RX 7600•RTX 4070 Ti
VS
NVIDIA

GeForce GT 645

2012Core: Up to 710 MHz

Popular choices:

RTX 4060•RTX 3060•RTX 4060 Ti•RTX 3070•GTX 1650•RTX 3060 Ti•RTX 4070•RTX 3050•RX 7600•RTX 4070 Ti

Performance Spectrum - GPU

Iris Pro Graphics 580
45
1,985
0.0%
brand logoArc A530M
brand logoArc A770M
brand logoArc B580
GeForce GT 645
32
2,006
+1.1%
brand logoGeForce 840A
brand logoGeForce GTS 450
brand logoGeForce GTX 550 Ti
brand logoGeForce GTX 580M SLI
brand logoGeForce GTX 1650 Ti with Max-Q Design
brand logoGeForce GTX 980
brand logoGeForce GTX 1080
brand logoTITAN 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. 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

Based on actual market prices and performance benchmarks.

Performance Per Dollar GeForce GT 645

#54
Radeon RX 6800S
MSRP: $800|Avg: $800
98%
#232
Radeon RX 550X (móvel)
MSRP: $35|Avg: $35
536%
#234
GeForce GTX 1070 with Max-Q Design
MSRP: N/A|Avg: $150
486%
#235
GeForce GTX 1060 with Max-Q Design
MSRP: N/A|Avg: $100
485%
#239
GeForce GTX 1050 (Mobile)
MSRP: N/A|Avg: $50
441%
#240
Radeon RX 6300
MSRP: $60|Avg: $40
438%
#242
GeForce GT 645
MSRP: $99|Avg: $15
100%
#252
GeForce 720A
MSRP: $30|Avg: $30
95%
#253
GeForce GT 520M
MSRP: $60|Avg: N/A
93%
#254
Radeon Vega 8 Ryzen 3 3200GE
MSRP: $99|Avg: $60
93%
#257
GeForce GTX 770M SLI
MSRP: N/A|Avg: $80
92%
Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The GeForce GT 645 is the superior choice for raw performance. It leads with a 1.1% higher G3D Mark score and 100+% more VRAM (2 GB vs 0 MB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Iris Pro Graphics 580.

InsightIris Pro Graphics 580GeForce GT 645
Performance
❌Lower raw frame rates (-1.1%)
✅Leading raw performance (+1.1%)
Longevity
🛑Obsolete Architecture (2015 / Generation 9.0 (2015−2016))
🛑Obsolete Architecture (2012 / Kepler (2012−2018))
Ecosystem
Supports FSR Upscaling
Supports FSR Upscaling
VRAM
❌ Less VRAM capacity
✅ More VRAM (+100+%)
Efficiency
⚡ Higher Power Consumption
💡 Excellent Perf/Watt
Case Fit
—
📏 Compact / SFF Friendly

💎 Value Proposition

While current pricing data is unavailable, the GeForce GT 645 remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.

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.

Iris Pro Graphics 580 Benchmark Check

GeForce GT 645 Benchmark Check

Path of Exile 2

Path of Exile 2

1080p
low25 FPS
medium14 FPS
high9 FPS
ultra6 FPS
1440p
low15 FPS
medium8 FPS
high5 FPS
ultra3 FPS
4K
low6 FPS
medium4 FPS
high2 FPS
ultra2 FPS
Path of Exile 2

Path of Exile 2

1080p
low11 FPS
medium7 FPS
high4 FPS
ultra3 FPS
1440p
low6 FPS
medium4 FPS
high2 FPS
ultra2 FPS
4K
low3 FPS
medium2 FPS
high1 FPS
ultra1 FPS
Counter-Strike 2

Counter-Strike 2

1080p
low89 FPS
medium71 FPS
high60 FPS
ultra33 FPS
1440p
low67 FPS
medium54 FPS
high35 FPS
ultra21 FPS
4K
low42 FPS
medium30 FPS
high17 FPS
ultra12 FPS
Counter-Strike 2

Counter-Strike 2

1080p
low47 FPS
medium25 FPS
high13 FPS
ultra8 FPS
1440p
low10 FPS
medium6 FPS
high3 FPS
ultra2 FPS
4K
low4 FPS
medium2 FPS
high1 FPS
ultra1 FPS
League of Legends

League of Legends

1080p
low89 FPS
medium71 FPS
high60 FPS
ultra45 FPS
1440p
low67 FPS
medium54 FPS
high45 FPS
ultra33 FPS
4K
low45 FPS
medium36 FPS
high30 FPS
ultra22 FPS
League of Legends

League of Legends

1080p
low90 FPS
medium72 FPS
high60 FPS
ultra45 FPS
1440p
low68 FPS
medium54 FPS
high45 FPS
ultra34 FPS
4K
low45 FPS
medium36 FPS
high30 FPS
ultra23 FPS
Valorant

Valorant

1080p
low52 FPS
medium35 FPS
high28 FPS
ultra17 FPS
1440p
low25 FPS
medium17 FPS
high14 FPS
ultra10 FPS
4K
low21 FPS
medium14 FPS
high12 FPS
ultra8 FPS
Valorant

Valorant

1080p
low70 FPS
medium47 FPS
high30 FPS
ultra16 FPS
1440p
low17 FPS
medium12 FPS
high8 FPS
ultra5 FPS
4K
low9 FPS
medium6 FPS
high4 FPS
ultra3 FPS
Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Iris Pro Graphics 580 and GeForce GT 645

Intel

Iris Pro Graphics 580

The Iris Pro Graphics 580 is manufactured by Intel. It was released in September 1 2015. It features the Generation 9.0 architecture. The core clock ranges from 350 MHz to 950 MHz. It has 576 shading units. The thermal design power (TDP) is 45W. Manufactured using 14 nm+ process technology. G3D Mark benchmark score: 1,985 points.

NVIDIA

GeForce GT 645

The GeForce GT 645 is manufactured by NVIDIA. It was released in October 1 2012. It features the Kepler architecture. The core clock speed is Up to 710 MHz. It has 384 shading units. The thermal design power (TDP) is 32W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 2,006 points.

⚡

Graphics Performance

The Iris Pro Graphics 580 scores 1,985 and the GeForce GT 645 reaches 2,006 in the G3D Mark benchmark — just a 1.1% difference, making them near-identical in rasterization performance. The Iris Pro Graphics 580 is built on Generation 9.0 while the GeForce GT 645 uses Kepler, both on 14 nm+ vs 28 nm. Shader units: 576 (Iris Pro Graphics 580) vs 384 (GeForce GT 645). Raw compute: 1.094 TFLOPS (Iris Pro Graphics 580) vs 0.5445 TFLOPS (GeForce GT 645).

FeatureIris Pro Graphics 580GeForce GT 645
G3D Mark Score
1,985
2,006+1%
Architecture
Generation 9.0
Kepler
Process Node
14 nm+
28 nm
Shading Units
576+50%
384
Compute (TFLOPS)
1.094 TFLOPS+101%
0.5445 TFLOPS
ROPs
9
16+78%
TMUs
72+125%
32
✨

Advanced Features (DLSS/FSR)

FeatureIris Pro Graphics 580GeForce GT 645
Upscaling Tech
FSR 1.0 (Software)
FSR 1.0 (Software)
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
Standard
Standard
💾

Video Memory (VRAM)

The Iris Pro Graphics 580 comes with 0 MB of VRAM, while the GeForce GT 645 has 2 GB. The GeForce GT 645 offers 100+% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: System vs 128-bit.

FeatureIris Pro Graphics 580GeForce GT 645
VRAM Capacity
Shared System RAM
2 GB
Memory Type
Shared
GDDR5
Memory Bandwidth
System
Unknown
Bus Width
System
128-bit
🖥️

Display & API Support

DirectX support: 12 (12_1) (Iris Pro Graphics 580) vs 12 (11_0) (GeForce GT 645). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 3 vs 3.

FeatureIris Pro Graphics 580GeForce GT 645
DirectX
12 (12_1)
12 (11_0)
Vulkan
1.2
1.2
OpenGL
4.6
4.6
Max Displays
3
3
🎬

Media & Encoding

Hardware encoder: Quick Sync Video (Iris Pro Graphics 580) vs NVENC (1st Gen) (GeForce GT 645). Decoder: Quick Sync Video vs NVDEC (1st Gen). Supported codecs: H.264,H.265,VP8,VP9 (Iris Pro Graphics 580) vs H.264,MPEG-2,VC-1 (GeForce GT 645).

FeatureIris Pro Graphics 580GeForce GT 645
Encoder
Quick Sync Video
NVENC (1st Gen)
Decoder
Quick Sync Video
NVDEC (1st Gen)
Codecs
H.264,H.265,VP8,VP9
H.264,MPEG-2,VC-1
🔌

Power & Dimensions

The Iris Pro Graphics 580 draws 45W versus the GeForce GT 645's 32W — a 33.8% difference. The GeForce GT 645 is more power-efficient. Recommended PSU: 0W (Iris Pro Graphics 580) vs 350W (GeForce GT 645). Power connectors: None vs PCIe-powered. Card length: 0mm vs 145mm, occupying 0 vs 1 slots. Typical load temperature: 80 vs 80.

FeatureIris Pro Graphics 580GeForce GT 645
TDP
45W
32W-29%
Recommended PSU
0W-100%
350W
Power Connector
None
PCIe-powered
Length
0mm
145mm
Height
0mm
111mm
Slots
0-100%
1
Temp (Load)
80
80
Perf/Watt
44.1
62.7+42%
💰

Value Analysis

The Iris Pro Graphics 580 launched at $0 MSRP and currently averages $0, while the GeForce GT 645 launched at $99 and now averages $15. The Iris Pro Graphics 580 costs 100+% less ($15 savings) at current market prices. Performance per dollar (G3D Mark / price): Infinity (Iris Pro Graphics 580) vs 133.7 (GeForce GT 645) — the Iris Pro Graphics 580 offers Infinity% better value. The Iris Pro Graphics 580 is the newer GPU (2015 vs 2012).

FeatureIris Pro Graphics 580GeForce GT 645
MSRP
$0-100%
$99
Avg Price (30d)
$0-100%
$15
Performance per Dollar
Infinity
133.7
Codename
Skylake GT4e
GK107
Release
September 1 2015
October 1 2012
Ranking
#707
#903