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GPU Comparison

Side-by-side comparison of specifications and performance

Performance Comparison

ATI Radeon HD 4830

36%
36%

AMD Radeon HD 7850

277%
277%
AMD Radeon HD 7850 is approximately 241% faster

Technical Specifications

SpecificationATI Radeon HD 4830AMD Radeon HD 7850
Graphics ProcessorDifferent
RV770
Pitcairn
CoresDifferent
640
1024
TMUsDifferent
32
64
ROPsDifferent
16
32
Memory SizeDifferent
512 MB
2 GB
Memory TypeDifferent
GDDR3
GDDR5
Bus Width
256 bit
256 bit

Graphics Processor

FeatureATI Radeon HD 4830AMD Radeon HD 7850
GPU NameDifferent
RV770
Pitcairn
GPU VariantDifferent
RV770 LE(215-0669075)
Pitcairn PRO(215-0828062)
ArchitectureDifferent
TeraScale
GCN 1.0
Foundry
TSMC
TSMC
Process SizeDifferent
55 nm
28 nm
TransistorsDifferent
956 million
2,800 million
DensityDifferent
3.7M / mm²
13.2M / mm²
Die SizeDifferent
256 mm²
212 mm²
Chip PackageDifferent
HFCBGA-1492
FCBGA-1737

Graphics Card

FeatureATI Radeon HD 4830AMD Radeon HD 7850
Release DateDifferent
Oct 21st, 2008
Mar 5th, 2012
GenerationDifferent
Radeon R700(HD 4800)
Southern Islands(HD 7800)
PredecessorDifferent
Radeon R600
Northern Islands
SuccessorDifferent
Evergreen
Sea Islands
Production
End-of-life
End-of-life
Launch PriceDifferent
130 USD
249 USD
Bus InterfaceDifferent
PCIe 2.0 x16
PCIe 3.0 x16
ReviewsDifferent
43 in our database
71 in our database

Clock Speeds

FeatureATI Radeon HD 4830AMD Radeon HD 7850
GPU ClockDifferent
575 MHz
860 MHz
Memory ClockDifferent
900 MHz1800 Mbps effective
1200 MHz4.8 Gbps effective

Memory

FeatureATI Radeon HD 4830AMD Radeon HD 7850
Memory SizeDifferent
512 MB
2 GB
Memory TypeDifferent
GDDR3
GDDR5
Memory Bus
256 bit
256 bit
BandwidthDifferent
57.60 GB/s
153.6 GB/s

Render Config

FeatureATI Radeon HD 4830AMD Radeon HD 7850
Shading UnitsDifferent
640
1024
TMUsDifferent
32
64
ROPsDifferent
16
32
Compute UnitsDifferent
8
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 CacheDifferent
256 KB
512 KB

Theoretical Performance

FeatureATI Radeon HD 4830AMD Radeon HD 7850
Pixel RateDifferent
9.200 GPixel/s
27.52 GPixel/s
Texture RateDifferent
18.40 GTexel/s
55.04 GTexel/s
FP32 (float)Different
736.0 GFLOPS
1.761 TFLOPS
FP64 (double)Different
147.2 GFLOPS (1:5)
110.1 GFLOPS (1:16)

Board Design

FeatureATI Radeon HD 4830AMD Radeon HD 7850
Slot WidthDifferent
Single-slot
Dual-slot
LengthDifferent
246 mm9.7 inches
210 mm8.3 inches
HeightDifferent
111 mm4.4 inches
N/A
WidthDifferent
20 mm0.8 inches
N/A
TDPDifferent
95 W
130 W
Suggested PSUDifferent
250 W
300 W
OutputsDifferent
2x DVI1x S-Video
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 6-pin
1x 6-pin
Board NumberDifferent
109-B50131-10
109-C40147-00, 109-C40337-00A

Graphics Features

FeatureATI Radeon HD 4830AMD Radeon HD 7850
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
47
Detailed Features

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