Tesla K40c vs Tesla K20c

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 Tesla K40c is positioned at rank 378 and the Tesla K20c is on rank 325, so the Tesla K20c 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 Tesla K40c

#363

Tesla K20m

MSRP: $3199|Avg: $55

25471%

#378

Tesla K40c

MSRP: $7699|Avg: $500

100%

#379

Tesla M2090

MSRP: $2500|Avg: $40

97%

#380

Quadro FX 4800

MSRP: $1799|Avg: $80

97%

#381

GRID K2

MSRP: $5199|Avg: $80

91%

#382

GRID K180Q

MSRP: $1000|Avg: $1000

91%

#383

Quadro CX

MSRP: $1999|Avg: $500

81%

#384

GRID P100-8Q

MSRP: $7374|Avg: $550

76%

#385

Quadro FX 350

MSRP: $199|Avg: $15

74%

#386

Quadro FX 550

MSRP: $150|Avg: $10

74%

#387

GRID V100D-8Q

MSRP: $10000|Avg: $10000

72%

#388

Tesla M2070

MSRP: $3099|Avg: $50

72%

#389

GRID M10-0Q

MSRP: $2000|Avg: $150

69%

#390

GRID V100-2Q

MSRP: $10000|Avg: $2000

66%

#391

Quadro FX 560

MSRP: $299|Avg: $15

66%

#392

Quadro FX 5800

MSRP: $3499|Avg: $40

60%

#393

RTX Pro 6000 Blackwell DC-12Q

MSRP: $8565|Avg: $8565

55%

Based on actual market prices and performance benchmarks.

Performance Per Dollar Tesla K20c

#310

Tesla K20m

MSRP: $3199|Avg: $55

10628%

#325

Tesla K20c

MSRP: $3199|Avg: $500

100%

#326

GRID M6-1Q

MSRP: $1500|Avg: $100

99%

#327

Quadro FX 380

MSRP: $129|Avg: $15

99%

#328

Tesla C2050 / C2070

MSRP: $2499|Avg: $30

99%

#329

FirePro M7740

MSRP: $500|Avg: $500

96%

#330

Quadro FX 570

MSRP: $199|Avg: $15

94%

#331

RTXA5000-24Q

MSRP: $3721|Avg: $2100

93%

#332

GRID P40-1Q

MSRP: $3000|Avg: $150

92%

#334

Tesla C2050

MSRP: $2499|Avg: $95

91%

#335

Tesla M10

MSRP: $2500|Avg: $500

91%

#336

FirePro S10000

MSRP: $3599|Avg: $500

91%

#337

Quadro FX 3450

MSRP: $119|Avg: $30

90%

#338

GRID P40-24Q

MSRP: $5699|Avg: $200

89%

#339

Quadro 4000

MSRP: $1199|Avg: $30

88%

#340

FireStream 9250

MSRP: $999|Avg: $49

84%

Based on actual market prices and performance benchmarks.

Performance Comparison

About G3D Mark

🏆 Chipversus Verdict

🚀 Performance Leadership

The Tesla K40c is the superior choice for raw performance. It leads with a 1.4% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Tesla K20c.

Insight	Tesla K40c	Tesla K20c
Performance	✅Leading raw performance (+1.4%)	❌Lower raw frame rates (-1.4%)
Longevity	🛑Obsolete Architecture (2013 / Kepler (2012−2018))	🛑Obsolete Architecture (2012 / Kepler (2012−2018))
Ecosystem	Supports FSR Upscaling	Supports FSR Upscaling
VRAM	❌ Less VRAM capacity	✅ More VRAM (+0%)
Efficiency	Normal Efficiency	Normal Efficiency
Case Fit	Standard Size (267mm)	Standard Size (267mm)

💎 Value Proposition

The Tesla K40c offers a compelling cost-to-performance ratio. While both GPUs are considered legacy components by modern standards, the Tesla K40c holds the technical lead. Priced at $500 (vs $500), it costs 0% less, resulting in a 1.4% higher cost efficiency score.

Insight	Tesla K40c	Tesla K20c
Cost Efficiency	✅Better overall value (+1.4%)	❌Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

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.

Tesla K40c Benchmark Check

Tesla K20c Benchmark Check

Path of Exile 2

No prediction data available

Path of Exile 2

Counter-Strike 2

No prediction data available

Counter-Strike 2

League of Legends

No prediction data available

League of Legends

Valorant

No prediction data available

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Tesla K40c and Tesla K20c

Tesla K40c

The Tesla K40c is manufactured by NVIDIA. It was released in October 8 2013. It features the Kepler architecture. The core clock ranges from 745 MHz to 876 MHz. It has 2880 shading units. The thermal design power (TDP) is 245W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,495 points. Launch price was $7,699.

Tesla K20c

The Tesla K20c is manufactured by NVIDIA. It was released in November 12 2012. It features the Kepler architecture. The core clock speed is 706 MHz. It has 2496 shading units. The thermal design power (TDP) is 225W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,432 points. Launch price was $3,199.

⚡

Graphics Performance

The Tesla K40c scores 4,495 and the Tesla K20c reaches 4,432 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The Tesla K40c is built on Kepler while the Tesla K20c uses Kepler, both on a 28 nm process. Shader units: 2,880 (Tesla K40c) vs 2,496 (Tesla K20c). Raw compute: 5.046 TFLOPS (Tesla K40c) vs 3.524 TFLOPS (Tesla K20c).

Feature	Tesla K40c	Tesla K20c
G3D Mark Score	4,495+1%	4,432
Architecture	Kepler	Kepler
Process Node	28 nm	28 nm
Shading Units	2880+15%	2496
Compute (TFLOPS)	5.046 TFLOPS+43%	3.524 TFLOPS
ROPs	48+20%	40
TMUs	240+15%	208
L1 Cache	240 KB+15%	208 KB
L2 Cache	1.5 MB+20%	1.25 MB

✨

Advanced Features (DLSS/FSR)

Feature	Tesla K40c	Tesla K20c
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)

Both cards feature 2 GB of GDDR5. Bus width: 64-bit vs 64-bit. L2 Cache: 1.5 MB (Tesla K40c) vs 1.25 MB (Tesla K20c) — the Tesla K40c has significantly larger on-die cache to reduce VRAM reliance.

Feature	Tesla K40c	Tesla K20c
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	64-bit
L2 Cache	1.5 MB+20%	1.25 MB

🖥️

Display & API Support

DirectX support: 11_0 (Tesla K40c) vs 11_0 (Tesla K20c). Maximum simultaneous displays: 0 vs 0.

Feature	Tesla K40c	Tesla K20c
DirectX	11_0	11_0
Max Displays	0	0

🔌

Power & Dimensions

The Tesla K40c draws 245W versus the Tesla K20c's 225W — a 8.5% difference. The Tesla K20c is more power-efficient. Recommended PSU: 350W (Tesla K40c) vs 350W (Tesla K20c). Power connectors: PCIe-powered vs PCIe-powered. Card length: 267mm vs 267mm, occupying 2 vs 2 slots.

Feature	Tesla K40c	Tesla K20c
TDP	245W	225W-8%
Recommended PSU	350W	350W
Power Connector	PCIe-powered	PCIe-powered
Length	267mm	267mm
Slots	2	2
Perf/Watt	18.3	19.7+8%

💰

Value Analysis

The Tesla K40c launched at $7699 MSRP and currently averages $500, while the Tesla K20c launched at $3199 and now averages $500. Performance per dollar (G3D Mark / price): 9.0 (Tesla K40c) vs 8.9 (Tesla K20c) — the Tesla K40c offers 1.1% better value. The Tesla K40c is the newer GPU (2013 vs 2012).