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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 4770

76%
76%

AMD Radeon HD 7750

131%
131%
AMD Radeon HD 7750 is approximately 55% faster

Technical Specifications

SpecificationATI Radeon HD 4770AMD Radeon HD 7750
Graphics ProcessorDifferent
RV740
Cape Verde
CoresDifferent
640
512
TMUs
32
32
ROPs
16
16
Memory SizeDifferent
512 MB
1024 MB
Memory Type
GDDR5
GDDR5
Bus Width
128 bit
128 bit

Graphics Processor

FeatureATI Radeon HD 4770AMD Radeon HD 7750
GPU NameDifferent
RV740
Cape Verde
GPU VariantDifferent
RV740 XT(215-0727019)
Cape Verde PRO(215-0825156)
ArchitectureDifferent
TeraScale
GCN 1.0
Foundry
TSMC
TSMC
Process SizeDifferent
40 nm
28 nm
TransistorsDifferent
826 million
1,500 million
DensityDifferent
6.0M / mm²
12.2M / mm²
Die SizeDifferent
137 mm²
123 mm²
Chip PackageDifferent
N/A
FCBGA-962

Graphics Card

FeatureATI Radeon HD 4770AMD Radeon HD 7750
Release DateDifferent
Apr 28th, 2009
Feb 15th, 2012
GenerationDifferent
Radeon R700(HD 4700)
Southern Islands(HD 7700)
PredecessorDifferent
Radeon R600
Northern Islands
SuccessorDifferent
Evergreen
Sea Islands
Production
End-of-life
End-of-life
Launch Price
109 USD
109 USD
Bus InterfaceDifferent
PCIe 2.0 x16
PCIe 3.0 x16
ReviewsDifferent
82 in our database
61 in our database

Clock Speeds

FeatureATI Radeon HD 4770AMD Radeon HD 7750
GPU ClockDifferent
750 MHz
800 MHz
Memory ClockDifferent
800 MHz3.2 Gbps effective
1125 MHz4.5 Gbps effective

Memory

FeatureATI Radeon HD 4770AMD Radeon HD 7750
Memory SizeDifferent
512 MB
1024 MB
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
BandwidthDifferent
51.20 GB/s
72.00 GB/s

Render Config

FeatureATI Radeon HD 4770AMD Radeon HD 7750
Shading UnitsDifferent
640
512
TMUs
32
32
ROPs
16
16
Compute Units
8
8
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
128 KB
256 KB

Theoretical Performance

FeatureATI Radeon HD 4770AMD Radeon HD 7750
Pixel RateDifferent
12.00 GPixel/s
12.80 GPixel/s
Texture RateDifferent
24.00 GTexel/s
25.60 GTexel/s
FP32 (float)Different
960.0 GFLOPS
819.2 GFLOPS
FP64 (double)Different
192.0 GFLOPS (1:5)
51.20 GFLOPS (1:16)

Board Design

FeatureATI Radeon HD 4770AMD Radeon HD 7750
Slot WidthDifferent
Dual-slot
Single-slot
LengthDifferent
203 mm8 inches
168 mm6.6 inches
TDPDifferent
80 W
55 W
Suggested PSU
250 W
250 W
OutputsDifferent
2x DVI1x S-Video
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power ConnectorsDifferent
1x 6-pin
None
Board NumberDifferent
B743
C441, 109-C44537-00B

Graphics Features

FeatureATI Radeon HD 4770AMD Radeon HD 7750
DirectXDifferent
10.1 (10_1)
12 (11_1)
OpenGLDifferent
3.3
4.6
OpenCLDifferent
1.1
2.1 (1.2)
VulkanDifferent
N/A
1.2.170
Shader ModelDifferent
4.1
6.5 (5.1)

Comparison Summary

7
Specifications Compared
8
Feature Categories
45
Detailed Features

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