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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

AMD Radeon R9 390X

493%
493%

AMD Radeon HD 7750

20%
20%
AMD Radeon R9 390X is approximately 473% faster

Technical Specifications

SpecificationAMD Radeon R9 390XAMD Radeon HD 7750
Graphics ProcessorDifferent
Grenada
Cape Verde
CoresDifferent
2816
512
TMUsDifferent
176
32
ROPsDifferent
64
16
Memory SizeDifferent
8 GB
1024 MB
Memory Type
GDDR5
GDDR5
Bus WidthDifferent
512 bit
128 bit

Graphics Processor

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
GPU NameDifferent
Grenada
Cape Verde
GPU VariantDifferent
Grenada XT(215-0880004)
Cape Verde PRO(215-0825156)
ArchitectureDifferent
GCN 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
TransistorsDifferent
6,200 million
1,500 million
DensityDifferent
14.2M / mm²
12.2M / mm²
Die SizeDifferent
438 mm²
123 mm²
Chip PackageDifferent
N/A
FCBGA-962

Graphics Card

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
Release DateDifferent
Jun 18th, 2015
Feb 15th, 2012
GenerationDifferent
Pirate Islands(R9 300)
Southern Islands(HD 7700)
PredecessorDifferent
Volcanic Islands
Northern Islands
SuccessorDifferent
Arctic Islands
Sea Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
429 USD
109 USD
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
ReviewsDifferent
60 in our database
61 in our database

Clock Speeds

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
GPU ClockDifferent
1050 MHz
800 MHz
Memory ClockDifferent
1500 MHz6 Gbps effective
1125 MHz4.5 Gbps effective

Memory

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
Memory SizeDifferent
8 GB
1024 MB
Memory Type
GDDR5
GDDR5
Memory BusDifferent
512 bit
128 bit
BandwidthDifferent
384.0 GB/s
72.00 GB/s

Render Config

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
Shading UnitsDifferent
2816
512
TMUsDifferent
176
32
ROPsDifferent
64
16
Compute UnitsDifferent
44
8
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
1024 KB
256 KB

Theoretical Performance

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
Pixel RateDifferent
67.20 GPixel/s
12.80 GPixel/s
Texture RateDifferent
184.8 GTexel/s
25.60 GTexel/s
FP32 (float)Different
5.914 TFLOPS
819.2 GFLOPS
FP64 (double)Different
739.2 GFLOPS (1:8)
51.20 GFLOPS (1:16)

Board Design

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
Slot WidthDifferent
Dual-slot
Single-slot
LengthDifferent
275 mm10.8 inches
168 mm6.6 inches
HeightDifferent
109 mm4.3 inches
N/A
WidthDifferent
36 mm1.4 inches
N/A
TDPDifferent
275 W
55 W
Suggested PSUDifferent
600 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 + 1x 8-pin
None
Board NumberDifferent
109-C67157-00_02, C679-37
C441, 109-C44537-00B

Graphics Features

FeatureAMD Radeon R9 390XAMD Radeon HD 7750
DirectXDifferent
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCLDifferent
2.1
2.1 (1.2)
Vulkan
1.2.170
1.2.170
Shader ModelDifferent
6.5
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
47
Detailed Features

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