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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

NVIDIA GeForce GTX 275

525%
525%

AMD Radeon HD 6450

19%
19%
NVIDIA GeForce GTX 275 is approximately 506% faster

Technical Specifications

SpecificationNVIDIA GeForce GTX 275AMD Radeon HD 6450
Graphics ProcessorDifferent
GT200B
Caicos
CoresDifferent
240
160
TMUsDifferent
80
8
ROPsDifferent
28
4
Memory SizeDifferent
896 MB
512 MB
Memory Type
GDDR3
GDDR3
Bus WidthDifferent
448 bit
64 bit

Graphics Processor

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
GPU NameDifferent
GT200B
Caicos
GPU VariantDifferent
G200-105-B3
Caicos PRO
ArchitectureDifferent
Tesla 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process SizeDifferent
55 nm
40 nm
TransistorsDifferent
1,400 million
370 million
DensityDifferent
3.0M / mm²
5.5M / mm²
Die SizeDifferent
470 mm²
67 mm²
Chip PackageDifferent
BGA-1981
FCBGA-631

Graphics Card

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
Release DateDifferent
Jan 15th, 2009
Apr 7th, 2011
GenerationDifferent
GeForce 200
Northern Islands(HD 6400)
PredecessorDifferent
GeForce 9
Evergreen
SuccessorDifferent
GeForce 400
Southern Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
249 USD
55 USD
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
ReviewsDifferent
61 in our database
14 in our database

Clock Speeds

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
GPU ClockDifferent
633 MHz
625 MHz
Shader ClockDifferent
1404 MHz
N/A
Memory ClockDifferent
1134 MHz2.3 Gbps effective
500 MHz1000 Mbps effective

Memory

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
Memory SizeDifferent
896 MB
512 MB
Memory Type
GDDR3
GDDR3
Memory BusDifferent
448 bit
64 bit
BandwidthDifferent
127.0 GB/s
8.000 GB/s

Render Config

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
Shading UnitsDifferent
240
160
TMUsDifferent
80
8
ROPsDifferent
28
4
SM CountDifferent
30
N/A
L2 CacheDifferent
224 KB
128 KB
Compute UnitsDifferent
N/A
2
L1 CacheDifferent
N/A
8 KB (per CU)

Theoretical Performance

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
Pixel RateDifferent
17.72 GPixel/s
2.500 GPixel/s
Texture RateDifferent
50.64 GTexel/s
5.000 GTexel/s
FP32 (float)Different
673.9 GFLOPS
200.0 GFLOPS
FP64 (double)Different
84.24 GFLOPS (1:8)
N/A

Board Design

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
Slot WidthDifferent
Dual-slot
Single-slot
LengthDifferent
267 mm10.5 inches
168 mm6.6 inches
TDPDifferent
219 W
18 W
Suggested PSUDifferent
550 W
200 W
OutputsDifferent
2x DVI
1x DVI1x HDMI 1.3a1x VGA
Power ConnectorsDifferent
2x 6-pin
None
Board NumberDifferent
P897 SKU 54
109-C26037-00A

Graphics Features

FeatureNVIDIA GeForce GTX 275AMD Radeon HD 6450
DirectXDifferent
11.1 (10_0)
11.2 (11_0)
OpenGLDifferent
3.3
4.4
OpenCLDifferent
1.1
1.2
Vulkan
N/A
N/A
CUDADifferent
1.3
N/A
Shader ModelDifferent
4.0
5.0

Comparison Summary

7
Specifications Compared
8
Feature Categories
48
Detailed Features

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