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.

FirePro M5100

2013

Why buy it

✅100% more VRAM for high-resolution textures and newer games (2 GB vs 1 GB).
✅Draws 150W instead of 200W, a 50W reduction.
✅Measures 82mm instead of 147mm, a 65mm shorter card that is more SFF-friendly.

Trade-offs

❌Very weak future-proofing: 2013-era hardware with 2 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌Lower G3D Mark per dollar, at 0 vs 12.5 G3D/$ (Unknown MSRP vs $150 MSRP).

GeForce GTX 645

2010

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 12.5 vs 0 G3D/$ ($150 MSRP vs Unknown MSRP).

Trade-offs

❌Less VRAM, with 1 GB vs 2 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2010-era hardware with 1 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌33.3% higher power demand at 200W vs 150W.
❌79.3% longer card at 147mm vs 82mm.

FirePro M5100

2013

GeForce GTX 645

2010

Why buy it

✅100% more VRAM for high-resolution textures and newer games (2 GB vs 1 GB).
✅Draws 150W instead of 200W, a 50W reduction.
✅Measures 82mm instead of 147mm, a 65mm shorter card that is more SFF-friendly.

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 12.5 vs 0 G3D/$ ($150 MSRP vs Unknown MSRP).

Trade-offs

❌Very weak future-proofing: 2013-era hardware with 2 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌Lower G3D Mark per dollar, at 0 vs 12.5 G3D/$ (Unknown MSRP vs $150 MSRP).

Trade-offs

❌Less VRAM, with 1 GB vs 2 GB for high-resolution textures and newer games.
❌Very weak future-proofing: 2010-era hardware with 1 GB of VRAM is already obsolete for modern gaming and is hard to recommend today.
❌33.3% higher power demand at 200W vs 150W.
❌79.3% longer card at 147mm vs 82mm.

Quick Answers

So, is GeForce GTX 645 better than FirePro M5100?

Yes, but this is not really about a huge raw performance gap. The broader synthetic picture is also very close at 1,874 vs 1,880 in G3D Mark. The bigger reason to prefer GeForce GTX 645 is the overall package: you are getting no meaningful modern upscaling stack.

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

FirePro M5100 is the more future-proof choice for 2026 and beyond. You are getting a newer 2013 generation instead of 2010, more VRAM at 2 GB instead of 1 GB, and a 28nm process instead of 40nm. That extra memory headroom makes it the safer pick for newer games, heavier textures, and higher settings over time.

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

GeForce GTX 645 can still make sense if you find it at the right price, especially around $150 MSRP. GeForce GTX 645 is still the smarter buy for most people, though, because the raw performance is close while the overall package is cleaner. GeForce GTX 645 is priced in an unclear MSRP range at $150 MSRP versus an unclear MSRP, and you are getting 0.3% higher G3D Mark. FirePro M5100 is the newer 2013 card, so it still has a real case if you care more about newer architecture, lower power draw (150W vs 200W), and future-proofing than about squeezing out the strongest gaming value today.

When does FirePro M5100 make more sense than GeForce GTX 645?

Yes. FirePro M5100 is still an excellent gaming GPU in 2026: it is still comfortable for 1080p and decent for 1440p, though 4K is more situational. It makes more sense if your priority is newer architecture, lower power draw (150W vs 200W), future-proofing, and staying closer to an unclear MSRP more than squeezing out the extra headroom of GeForce GTX 645. The trade-off is that GeForce GTX 645 currently gives you 0.3% higher G3D Mark. It also leads G3D-per-dollar by 100+%.

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.

FirePro M5100 Benchmark Check

GeForce GTX 645 Benchmark Check

Path of Exile 2

Preset	FirePro M5100	GeForce GTX 645
1080p
low	28 FPS	82 FPS
medium	17 FPS	68 FPS
high	10 FPS	47 FPS
ultra	5 FPS	30 FPS
1440p
low	13 FPS	63 FPS
medium	7 FPS	51 FPS
high	3 FPS	33 FPS
ultra	2 FPS	21 FPS
4K
low	5 FPS	23 FPS
medium	3 FPS	22 FPS
high	1 FPS	13 FPS
ultra	1 FPS	11 FPS

Open FirePro M5100 Open GeForce GTX 645

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	FirePro M5100	GeForce GTX 645
1080p
low	40 FPS	85 FPS
medium	21 FPS	65 FPS
high	15 FPS	53 FPS
ultra	11 FPS	40 FPS
1440p
low	18 FPS	52 FPS
medium	10 FPS	34 FPS
high	6 FPS	24 FPS
ultra	5 FPS	19 FPS
4K
low	5 FPS	25 FPS
medium	3 FPS	16 FPS
high	3 FPS	12 FPS
ultra	2 FPS	9 FPS

Open FirePro M5100 Open GeForce GTX 645

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	FirePro M5100	GeForce GTX 645
1080p
low	84 FPS	85 FPS
medium	67 FPS	68 FPS
high	56 FPS	56 FPS
ultra	42 FPS	42 FPS
1440p
low	63 FPS	63 FPS
medium	51 FPS	51 FPS
high	42 FPS	42 FPS
ultra	32 FPS	32 FPS
4K
low	42 FPS	42 FPS
medium	34 FPS	34 FPS
high	28 FPS	28 FPS
ultra	21 FPS	21 FPS

Open FirePro M5100 Open GeForce GTX 645

League of Legends

League of Legends

Valorant

Preset	FirePro M5100	GeForce GTX 645
1080p
low	84 FPS	85 FPS
medium	67 FPS	68 FPS
high	56 FPS	56 FPS
ultra	42 FPS	42 FPS
1440p
low	63 FPS	63 FPS
medium	51 FPS	51 FPS
high	42 FPS	42 FPS
ultra	32 FPS	32 FPS
4K
low	41 FPS	42 FPS
medium	31 FPS	34 FPS
high	26 FPS	28 FPS
ultra	17 FPS	21 FPS

Open FirePro M5100 Open GeForce GTX 645

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of FirePro M5100 and GeForce GTX 645

FirePro M5100

The FirePro M5100 is manufactured by AMD. It was released in October 16 2013. It features the GCN 1.0 architecture. The core clock ranges from 725 MHz to 775 MHz. It has 640 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,874 points.

GeForce GTX 645

The GeForce GTX 645 is manufactured by NVIDIA. It was released in May 31 2010. It features the Fermi architecture. The core clock speed is 607 MHz. It has 352 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,880 points. Launch price was $279.

⚡

Graphics Performance

The FirePro M5100 scores 1,874 and the GeForce GTX 645 reaches 1,880 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The FirePro M5100 is built on GCN 1.0 while the GeForce GTX 645 uses Fermi, both on 28 nm vs 40 nm. Shader units: 640 (FirePro M5100) vs 352 (GeForce GTX 645). Raw compute: 0.992 TFLOPS (FirePro M5100) vs 0.8554 TFLOPS (GeForce GTX 645).

Feature	FirePro M5100	GeForce GTX 645
G3D Mark Score	1,874	1,880
Architecture	GCN 1.0	Fermi
Process Node	28 nm	40 nm
Shading Units	640+82%	352
Compute (TFLOPS)	0.992 TFLOPS+16%	0.8554 TFLOPS
ROPs	16	32+100%
TMUs	40	44+10%
L1 Cache	160 KB	704 KB+340%
L2 Cache	256 KB	512 KB+100%

✨

Advanced Features (DLSS/FSR)

The GeForce GTX 645 gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The FirePro M5100 relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.

Feature	FirePro M5100	GeForce GTX 645
Upscaling Tech	Upscaling support	Upscaling support
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	NVIDIA Reflex

💾

Video Memory (VRAM)

The FirePro M5100 comes with 2 GB of VRAM, while the GeForce GTX 645 has 1 GB. The FirePro M5100 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 64-bit vs 128-bit. L2 Cache: 256 KB (FirePro M5100) vs 512 KB (GeForce GTX 645) — the GeForce GTX 645 has significantly larger on-die cache to reduce VRAM reliance.

Feature	FirePro M5100	GeForce GTX 645
VRAM Capacity	2 GB+100%	1 GB
Memory Type	GDDR5	GDDR5
Bus Width	64-bit	128-bit+100%
L2 Cache	256 KB	512 KB+100%

🖥️

Display & API Support

DirectX support: 12 (FL11_1) (FirePro M5100) vs 11.0 (GeForce GTX 645). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 1 vs 3.

Feature	FirePro M5100	GeForce GTX 645
DirectX	12 (FL11_1)+9%	11.0
Vulkan	1.2	1.2
OpenGL	4.6	4.6
Max Displays	1	3+200%

🎬

Media & Encoding

Hardware encoder: VCE 1.0 (FirePro M5100) vs NVENC (1st Gen) (GeForce GTX 645). Decoder: UVD 4.0 vs PureVideo VP5. Supported codecs: H.264,VC-1 (FirePro M5100) vs MPEG-2,VC-1,H.264,MPEG-4 (GeForce GTX 645).

Feature	FirePro M5100	GeForce GTX 645
Encoder	VCE 1.0	NVENC (1st Gen)
Decoder	UVD 4.0	PureVideo VP5
Codecs	H.264,VC-1	MPEG-2,VC-1,H.264,MPEG-4

🔌

Power & Dimensions

The FirePro M5100 draws 150W versus the GeForce GTX 645's 200W — a 28.6% difference. The FirePro M5100 is more power-efficient. Recommended PSU: 350W (FirePro M5100) vs 300W (GeForce GTX 645). Power connectors: PCIe-powered vs None. Card length: 82mm vs 147mm, occupying 1 vs 1 slots. Typical load temperature: 75°C vs 80.

Feature	FirePro M5100	GeForce GTX 645
TDP	150W-25%	200W
Recommended PSU	350W	300W-14%
Power Connector	PCIe-powered	None
Length	82mm	147mm
Height	70mm	111mm
Slots	1	1
Temp (Load)	75°C-6%	80
Perf/Watt	12.5+33%	9.4

💰

Value Analysis

The FirePro M5100 launched at $0 MSRP, while the GeForce GTX 645 launched at $150. The FirePro M5100 costs 100+% less ($150 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): Infinity (FirePro M5100) vs 12.5 (GeForce GTX 645) — the FirePro M5100 offers Infinity% better value. The FirePro M5100 is the newer GPU (2013 vs 2010).