FirePro V4900 vs GeForce GT 645M
When choosing between FirePro V4900 and GeForce GT 645M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between FirePro V4900 and GeForce GT 645M.
GeForce GT 645M is a Laptop Graphics Card
Note: GeForce GT 645M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 645M here:
Main Specs
FirePro V4900
GeForce GT 645M
Power consumption (TDP)
75 Watt
32 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
1 GB
2 GB
Display Connectors
1x DVI, 2x DisplayPort
No outputs
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FirePro V4900 has 134% more power consumption, than GeForce GT 645M.
FirePro V4900 is connected by PCIe 2.0 x16, and GeForce GT 645M uses PCIe 3.0 x16 interface.
GeForce GT 645M has 1 GB more memory, than FirePro V4900.
FirePro V4900 is used in Desktops, and GeForce GT 645M - in Laptops.
FirePro V4900 is build with TeraScale 2 architecture, and GeForce GT 645M - with Kepler.
FirePro V4900 is manufactured by 40 nm process technology, and GeForce GT 645M - by 28 nm process technology.
Memory clock speed of FirePro V4900 is 2200 MHz higher, than GeForce GT 645M.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
2−3
1−2
ultra / 1080p
1−2
0−1
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
4−5
2−3
The average gaming FPS of FirePro V4900 in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M.
high / 1080p
6−7
−
ultra / 1080p
5−6
3−4
QHD / 1440p
0−1
0−1
low / 720p
16−18
12−14
medium / 1080p
6−7
4−5
The average gaming FPS of FirePro V4900 in Battlefield 5 is 28% more, than GeForce GT 645M.
low / 768p
50−55
50−55
high / 1080p
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 11% more, than FirePro V4900.
low / 768p
110−120
110−120
medium / 768p
90−95
85−90
ultra / 1080p
40−45
35−40
QHD / 1440p
24−27
−
4K / 2160p
−
10−11
high / 768p
65−70
60−65
The average gaming FPS of FirePro V4900 in Counter-Strike: Global Offensive is 5% more, than GeForce GT 645M.
low / 768p
75−80
70−75
ultra / 1080p
18−20
14−16
medium / 1080p
50−55
45−50
The average gaming FPS of FirePro V4900 in Cyberpunk 2077 is 8% more, than GeForce GT 645M.
low / 768p
70−75
70−75
medium / 768p
50−55
45−50
ultra / 1080p
24−27
18−20
The average gaming FPS of FirePro V4900 in Dota 2 is 8% more, than GeForce GT 645M.
high / 1080p
3−4
2−3
ultra / 1080p
2−3
2−3
4K / 2160p
1−2
0−1
low / 720p
12−14
10−11
medium / 1080p
4−5
3−4
The average gaming FPS of FirePro V4900 in Far Cry 5 is 25% more, than GeForce GT 645M.
high / 1080p
10−12
−
ultra / 1080p
6−7
5−6
QHD / 1440p
4−5
1−2
low / 720p
50−55
45−50
medium / 1080p
12−14
8−9
The average gaming FPS of FirePro V4900 in Fortnite is 26% more, than GeForce GT 645M.
high / 1080p
7−8
3−4
ultra / 1080p
6−7
−
QHD / 1440p
1−2
0−1
low / 720p
18−20
14−16
medium / 1080p
9−10
6−7
The average gaming FPS of FirePro V4900 in Forza Horizon 4 is 50% more, than GeForce GT 645M.
low / 768p
45−50
40−45
medium / 768p
35−40
−
high / 1080p
6−7
3−4
ultra / 1080p
3−4
2−3
QHD / 1440p
0−1
0−1
medium / 720p
−
35−40
The average gaming FPS of FirePro V4900 in Grand Theft Auto V is 18% more, than GeForce GT 645M.
high / 1080p
2−3
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
5−6
3−4
medium / 1080p
3−4
2−3
The average gaming FPS of FirePro V4900 in Metro Exodus is 50% more, than GeForce GT 645M.
low / 768p
85−90
85−90
high / 1080p
60−65
55−60
The average gaming FPS of FirePro V4900 in Minecraft is 4% more, than GeForce GT 645M.
high / 1080p
−
14−16
ultra / 1080p
12−14
12−14
low / 720p
24−27
24−27
medium / 1080p
14−16
14−16
FirePro V4900 and GeForce GT 645M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
6−7
3−4
QHD / 1440p
−
0−1
low / 720p
6−7
4−5
The average gaming FPS of FirePro V4900 in Red Dead Redemption 2 is 50% more, than GeForce GT 645M.
low / 768p
12−14
8−9
medium / 768p
10−11
7−8
high / 1080p
5−6
3−4
ultra / 1080p
4−5
3−4
4K / 2160p
2−3
0−1
The average gaming FPS of FirePro V4900 in The Witcher 3: Wild Hunt is 60% more, than GeForce GT 645M.
low / 768p
85−90
70−75
medium / 768p
35−40
35−40
ultra / 1080p
14−16
12−14
high / 768p
30−33
30−33
The average gaming FPS of FirePro V4900 in World of Tanks is 10% more, than GeForce GT 645M.
Full Specs
FirePro V4900
GeForce GT 645M
Architecture
TeraScale 2
Kepler
Code name
Turks
N13P-GS
Type
Workstation
Laptop
Release date
1 November 2011
22 March 2012
Pipelines
480
384
Core clock speed
800 MHz
Transistor count
716 million
1,270 million
Manufacturing process technology
40 nm
28 nm
Texture fill rate
19.20
22.7 billion/sec
Floating-point performance
768.0 gflops
544.5 gflops
Length
163 mm
Memory bus width
128 Bit
128bit
Memory clock speed
4000 MHz
1800 MHz
Memory bandwidth
64 GB/s
Shared memory
-
DirectX
11.2 (11_0)
12 API
Shader Model
5.0
5.1
OpenGL
4.4
4.5
OpenCL
1.2
1.1
Vulkan
N/A
1.1.126
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
73 Mh/s
19 Mh/s
Laptop size
medium sized
Optimus
+
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