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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

NVIDIA GeForce GTX 660

248%
248%

AMD Radeon HD 7750

46%
46%
NVIDIA GeForce GTX 660 is approximately 202% faster

Technical Specifications

SpecificationNVIDIA GeForce GTX 660AMD Radeon HD 7750
Graphics ProcessorDifferent
GK106
Cape Verde
CoresDifferent
960
512
TMUsDifferent
80
32
ROPsDifferent
24
16
Memory SizeDifferent
2 GB
1024 MB
Memory Type
GDDR5
GDDR5
Bus WidthDifferent
192 bit
128 bit

Graphics Processor

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
GPU NameDifferent
GK106
Cape Verde
GPU VariantDifferent
GK106-400-A1
Cape Verde PRO(215-0825156)
ArchitectureDifferent
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
TransistorsDifferent
2,540 million
1,500 million
DensityDifferent
11.5M / mm²
12.2M / mm²
Die SizeDifferent
221 mm²
123 mm²
Chip PackageDifferent
BGA-1425
FCBGA-962

Graphics Card

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
Release DateDifferent
Sep 6th, 2012
Feb 15th, 2012
GenerationDifferent
GeForce 600
Southern Islands(HD 7700)
PredecessorDifferent
GeForce 500
Northern Islands
SuccessorDifferent
GeForce 700
Sea Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
229 USD
109 USD
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
ReviewsDifferent
77 in our database
61 in our database

Clock Speeds

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
Base ClockDifferent
980 MHz
N/A
Boost ClockDifferent
1032 MHz
N/A
Memory ClockDifferent
1502 MHz6 Gbps effective
1125 MHz4.5 Gbps effective
GPU ClockDifferent
N/A
800 MHz

Memory

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
Memory SizeDifferent
2 GB
1024 MB
Memory Type
GDDR5
GDDR5
Memory BusDifferent
192 bit
128 bit
BandwidthDifferent
144.2 GB/s
72.00 GB/s

Render Config

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
Shading UnitsDifferent
960
512
TMUsDifferent
80
32
ROPsDifferent
24
16
SMX CountDifferent
5
N/A
L1 CacheDifferent
16 KB (per SMX)
16 KB (per CU)
L2 CacheDifferent
384 KB
256 KB
Compute UnitsDifferent
N/A
8

Theoretical Performance

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
Pixel RateDifferent
20.64 GPixel/s
12.80 GPixel/s
Texture RateDifferent
82.56 GTexel/s
25.60 GTexel/s
FP32 (float)Different
1.981 TFLOPS
819.2 GFLOPS
FP64 (double)Different
82.56 GFLOPS (1:24)
51.20 GFLOPS (1:16)

Board Design

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
Slot WidthDifferent
Dual-slot
Single-slot
LengthDifferent
241 mm9.5 inches
168 mm6.6 inches
TDPDifferent
140 W
55 W
Suggested PSUDifferent
300 W
250 W
OutputsDifferent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power ConnectorsDifferent
1x 6-pin
None
Board NumberDifferent
P2030 SKU 0
C441, 109-C44537-00B

Graphics Features

FeatureNVIDIA GeForce GTX 660AMD Radeon HD 7750
DirectXDifferent
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCLDifferent
3.0
2.1 (1.2)
VulkanDifferent
1.2.175
1.2.170
CUDADifferent
3.0
N/A
Shader Model
6.5 (5.1)
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
49
Detailed Features

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