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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GeForce GT 640

2012

Why buy it

✅Costs $400 less on MSRP ($99 MSRP vs $499 MSRP).
✅Draws 65W instead of 220W, a 155W reduction.
✅Measures 145mm instead of 242mm, a 97mm shorter card that is more SFF-friendly.

Trade-offs

❌Lower PassMark G3D performance (1,169 vs 22,172).
❌Less VRAM, with 4 GB vs 8 GB for high-resolution textures and newer games.
❌No DLSS support; it relies on Upscaling support instead.
❌Very weak future-proofing: 2012-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌Lower G3D Mark per dollar, at 11.8 vs 44.4 G3D/$ ($99 MSRP vs $499 MSRP).

GeForce RTX 3070

2020

Why buy it

✅+1796.7% higher PassMark G3D performance.
✅Delivers 276.3% more G3D Mark for each dollar spent, at 44.4 vs 11.8 G3D/$ ($499 MSRP vs $99 MSRP).
✅Access to DLSS 2 Super Resolution (2020).
✅100% more VRAM for high-resolution textures and newer games (8 GB vs 4 GB).
✅More future proof: Ampere (2020−2025) on 8nm with a newer platform for upcoming games.

Trade-offs

❌238.5% higher power demand at 220W vs 65W.
❌66.9% longer card at 242mm vs 145mm.

GeForce GT 640

2012

GeForce RTX 3070

2020

Why buy it

✅Costs $400 less on MSRP ($99 MSRP vs $499 MSRP).
✅Draws 65W instead of 220W, a 155W reduction.
✅Measures 145mm instead of 242mm, a 97mm shorter card that is more SFF-friendly.

Why buy it

✅+1796.7% higher PassMark G3D performance.
✅Delivers 276.3% more G3D Mark for each dollar spent, at 44.4 vs 11.8 G3D/$ ($499 MSRP vs $99 MSRP).
✅Access to DLSS 2 Super Resolution (2020).
✅100% more VRAM for high-resolution textures and newer games (8 GB vs 4 GB).
✅More future proof: Ampere (2020−2025) on 8nm with a newer platform for upcoming games.

Trade-offs

❌Lower PassMark G3D performance (1,169 vs 22,172).
❌Less VRAM, with 4 GB vs 8 GB for high-resolution textures and newer games.
❌No DLSS support; it relies on Upscaling support instead.
❌Very weak future-proofing: 2012-era hardware with 4 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌Lower G3D Mark per dollar, at 11.8 vs 44.4 G3D/$ ($99 MSRP vs $499 MSRP).

Trade-offs

❌238.5% higher power demand at 220W vs 65W.
❌66.9% longer card at 242mm vs 145mm.

Quick Answers

So, is GeForce RTX 3070 better than GeForce GT 640?

Yes. GeForce RTX 3070 is clearly the better overall GPU here. You are also looking at 22,172 vs 1,169 in G3D Mark. On top of that, GeForce RTX 3070 is a 2020 card with DLSS Super Resolution, while GeForce GT 640 is a 2012 model from an older generation with no meaningful modern upscaling stack. So this is not really a tight same-tier comparison. It is more a modern card against an older, weaker alternative.

Which one is more future-proof for 2026 and beyond?

GeForce RTX 3070 is the more future-proof choice for 2026 and beyond. You are getting a newer 2020 generation instead of 2012, 1796.7% more raw performance headroom, more VRAM at 8 GB instead of 4 GB, and better upscaling support with DLSS 2 Super Resolution (2020) instead of no meaningful modern upscaling stack. That leaves it with more room for heavier textures, tougher ray tracing loads, and higher-end 1440p or 4K gaming over the next few years.

Which one is the smarter buy today, not just the cheaper card?

GeForce RTX 3070 is the smarter buy by a wide margin. GeForce RTX 3070 is about 404.0% more expensive on MSRP at $499 MSRP versus $99 MSRP, and you are getting 1796.7% higher G3D Mark. GeForce GT 640 really only makes sense now as a very cheap stopgap or a used-market placeholder.

Is GeForce GT 640 still worth buying for gaming in 2026?

No, not for a fresh gaming build. GeForce GT 640 is 2012 hardware with 4 GB of VRAM, 1,169 in G3D Mark, and no meaningful modern upscaling stack. That is simply too far behind to be an easy modern recommendation.

Games Benchmarks

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 9800X3D 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 640 Benchmark Check

GeForce RTX 3070 Benchmark Check

Path of Exile 2

Preset	GeForce GT 640	GeForce RTX 3070
1080p
low	16 FPS	158 FPS
medium	11 FPS	140 FPS
high	7 FPS	123 FPS
ultra	4 FPS	104 FPS
1440p
low	11 FPS	134 FPS
medium	6 FPS	109 FPS
high	3 FPS	96 FPS
ultra	1 FPS	86 FPS
4K
low	4 FPS	80 FPS
medium	3 FPS	67 FPS
high	1 FPS	52 FPS
ultra	1 FPS	45 FPS

Open GeForce GT 640 Open GeForce RTX 3070

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce GT 640	GeForce RTX 3070
1080p
low	36 FPS	470 FPS
medium	16 FPS	405 FPS
high	11 FPS	327 FPS
ultra	8 FPS	277 FPS
1440p
low	12 FPS	294 FPS
medium	5 FPS	246 FPS
high	4 FPS	213 FPS
ultra	3 FPS	179 FPS
4K
low	4 FPS	141 FPS
medium	2 FPS	120 FPS
high	2 FPS	105 FPS
ultra	1 FPS	83 FPS

Open GeForce GT 640 Open GeForce RTX 3070

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce GT 640	GeForce RTX 3070
1080p
low	53 FPS	885 FPS
medium	42 FPS	712 FPS
high	35 FPS	619 FPS
ultra	26 FPS	499 FPS
1440p
low	39 FPS	692 FPS
medium	32 FPS	557 FPS
high	26 FPS	473 FPS
ultra	20 FPS	374 FPS
4K
low	26 FPS	479 FPS
medium	21 FPS	388 FPS
high	18 FPS	330 FPS
ultra	13 FPS	249 FPS

Open GeForce GT 640 Open GeForce RTX 3070

League of Legends

League of Legends

Valorant

Preset	GeForce GT 640	GeForce RTX 3070
1080p
low	53 FPS	600 FPS
medium	42 FPS	527 FPS
high	26 FPS	433 FPS
ultra	16 FPS	385 FPS
1440p
low	6 FPS	489 FPS
medium	4 FPS	433 FPS
high	3 FPS	339 FPS
ultra	2 FPS	297 FPS
4K
low	4 FPS	292 FPS
medium	2 FPS	270 FPS
high	2 FPS	238 FPS
ultra	1 FPS	200 FPS

Open GeForce GT 640 Open GeForce RTX 3070

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GeForce GT 640 and GeForce RTX 3070

GeForce GT 640

The GeForce GT 640 is manufactured by NVIDIA. It was released in June 5 2012. It features the Kepler architecture. The core clock speed is 902 MHz. It has 384 shading units. The thermal design power (TDP) is 65W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,169 points. Launch price was $99.

GeForce RTX 3070

The GeForce RTX 3070 is manufactured by NVIDIA. It was released in September 1 2020. It features the Ampere architecture. The core clock ranges from 1500 MHz to 1725 MHz. It has 5888 shading units. The thermal design power (TDP) is 220W. Manufactured using 8 nm process technology. It features 46 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 22,172 points. Launch price was $499.

⚡

Graphics Performance

In G3D Mark, the GeForce GT 640 scores 1,169 versus the GeForce RTX 3070's 22,172 — the GeForce RTX 3070 leads by 1796.7%. The GeForce GT 640 is built on Kepler while the GeForce RTX 3070 uses Ampere, both on 28 nm vs 8 nm. Shader units: 384 (GeForce GT 640) vs 5,888 (GeForce RTX 3070). Raw compute: 0.6927 TFLOPS (GeForce GT 640) vs 20.31 TFLOPS (GeForce RTX 3070).

Feature	GeForce GT 640	GeForce RTX 3070
G3D Mark Score	1,169	22,172+1797%
Architecture	Kepler	Ampere
Process Node	28 nm	8 nm
Shading Units	384	5888+1433%
Compute (TFLOPS)	0.6927 TFLOPS	20.31 TFLOPS+2832%
ROPs	16	96+500%
TMUs	32	184+475%
L1 Cache	0.03 MB	5.8 MB+19233%
L2 Cache	0.25 MB	4 MB+1500%

✨

Advanced Features (DLSS/FSR)

The GeForce RTX 3070 supports the newer DLSS 2 Super Resolution, whereas the GeForce GT 640 is capped at Upscaling support.

Feature	GeForce GT 640	GeForce RTX 3070
Upscaling Tech	Upscaling support	DLSS 2 Super Resolution
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	NVIDIA Reflex

💾

Video Memory (VRAM)

The GeForce GT 640 comes with 4 GB of VRAM, while the GeForce RTX 3070 has 8 GB. The GeForce RTX 3070 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 128-bit vs 256-bit. L2 Cache: 0.25 MB (GeForce GT 640) vs 4 MB (GeForce RTX 3070) — the GeForce RTX 3070 has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GT 640	GeForce RTX 3070
VRAM Capacity	4 GB	8 GB+100%
Memory Type	GDDR5	GDDR6
Memory Bandwidth	Unknown	448 GB/s
Bus Width	128-bit	256-bit+100%
L2 Cache	0.25 MB	4 MB+1500%

🖥️

Display & API Support

DirectX support: 11.0 (GeForce GT 640) vs 12 Ultimate (GeForce RTX 3070). Vulkan: 1.1 vs 1.4. OpenGL: 4.5 vs 4.6. Maximum simultaneous displays: 3 vs 4.

Feature	GeForce GT 640	GeForce RTX 3070
DirectX	11.0	12 Ultimate+9%
Vulkan	1.1	1.4+27%
OpenGL	4.5	4.6+2%
Max Displays	3	4+33%

🎬

Media & Encoding

Hardware encoder: NVENC 1.0 (GeForce GT 640) vs NVENC 7th gen (GeForce RTX 3070). Decoder: PureVideo HD VP5 vs NVDEC 5th gen. Supported codecs: MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 640) vs H.264,H.265/HEVC,AV1,VP9 (GeForce RTX 3070).

Feature	GeForce GT 640	GeForce RTX 3070
Encoder	NVENC 1.0	NVENC 7th gen
Decoder	PureVideo HD VP5	NVDEC 5th gen
Codecs	MPEG-2,H.264,VC-1,MPEG-4 ASP	H.264,H.265/HEVC,AV1,VP9

🔌

Power & Dimensions

The GeForce GT 640 draws 65W versus the GeForce RTX 3070's 220W — a 108.8% difference. The GeForce GT 640 is more power-efficient. Recommended PSU: 300W (GeForce GT 640) vs 650W (GeForce RTX 3070). Power connectors: None vs 8-pin. Card length: 145mm vs 242mm, occupying 1 vs 2 slots. Typical load temperature: 60°C vs 75°C.

Feature	GeForce GT 640	GeForce RTX 3070
TDP	65W-70%	220W
Recommended PSU	300W-54%	650W
Power Connector	None	8-pin
Length	145mm	242mm
Height	111mm	112mm
Slots	1-50%	2
Temp (Load)	60°C-20%	75°C
Perf/Watt	18.0	100.8+460%

💰

Value Analysis

The GeForce GT 640 launched at $99 MSRP, while the GeForce RTX 3070 launched at $499. The GeForce GT 640 costs 80.2% less ($400 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 11.8 (GeForce GT 640) vs 44.4 (GeForce RTX 3070) — the GeForce RTX 3070 offers 276.3% better value. The GeForce RTX 3070 is the newer GPU (2020 vs 2012).